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Moreno-Latorre M, de la Torre MC, Cabeza JA, García-Álvarez P, Sierra MA. Attaching Metal-Containing Moieties to β-Lactam Antibiotics: The Case of Penicillin and Cephalosporin. Inorg Chem 2024. [PMID: 38923955 DOI: 10.1021/acs.inorgchem.4c01548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/28/2024]
Abstract
Procedures for the preparation of transition metal complexes having intact bicyclic cepham or penam systems as ligands have been developed. Starting from readily available 4-azido-2-azetidinones, a synthetic approach has been tuned using a copper-catalyzed azide-alkyne cycloaddition between 3-azido-2-azetinones and alkynes, followed by methylation and transmetalation to Au(I) and Ir(III) complexes from the mesoionic carbene Ag(I) complexes. This methodology was applied to 6-azido penam and 7-azido cepham derivatives to build 6-(1,2,3-triazolyl)penam and 7-(1,2,3-triazolyl)cepham proligands, which upon methylation and metalation with Au(I) and Ir(III) complexes yielded products derived from the coordination of the metal to the penam C6 and cepham C7 positions, preserving intact the bicyclic structure of the penicillin and cephalosporin scaffolds. The crystal structure of complex 28b, which has an Ir atom directly bonded to the intact penicillin bicycle, was determined by X-ray diffraction. This is the first structural report of a penicillin-transition-metal complex having the bicyclic system of these antibiotics intact. The selectivity of the coordination processes was interpreted using DFT calculations.
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Affiliation(s)
- María Moreno-Latorre
- Instituto de Química Orgánica General, Consejo Superior de Investigaciones Científicas (IQOG-CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
- Centro de Innovación en Química Avanzada ORFEO-CINQA, https://orfeocinqa.es/
| | - María C de la Torre
- Instituto de Química Orgánica General, Consejo Superior de Investigaciones Científicas (IQOG-CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
- Centro de Innovación en Química Avanzada ORFEO-CINQA, https://orfeocinqa.es/
| | - Javier A Cabeza
- Departamento de Química Orgánica e Inorgánica, Facultad de Química, Universidad de Oviedo, 33071 Oviedo, Spain
- Centro de Innovación en Química Avanzada ORFEO-CINQA, https://orfeocinqa.es/
| | - Pablo García-Álvarez
- Departamento de Química Orgánica e Inorgánica, Facultad de Química, Universidad de Oviedo, 33071 Oviedo, Spain
- Centro de Innovación en Química Avanzada ORFEO-CINQA, https://orfeocinqa.es/
| | - Miguel A Sierra
- Departamento de Química Orgánica I, Facultad de Química, Universidad Complutense, 28040 Madrid, Spain
- Centro de Innovación en Química Avanzada ORFEO-CINQA, https://orfeocinqa.es/
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Ali A, Polepalli L, Chowdhury S, Carr MA, Janorkar AV, Marquart ME, Griggs JA, Bumgardner JD, Roach MD. Silver-Doped Titanium Oxide Layers for Improved Photocatalytic Activity and Antibacterial Properties of Titanium Implants. J Funct Biomater 2024; 15:163. [PMID: 38921536 PMCID: PMC11204938 DOI: 10.3390/jfb15060163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2024] [Revised: 06/06/2024] [Accepted: 06/13/2024] [Indexed: 06/27/2024] Open
Abstract
Titanium has a long history of clinical use, but the naturally forming oxide is not ideal for bacterial resistance. Anodization processes can modify the crystallinity, surface topography, and surface chemistry of titanium oxides. Anatase, rutile, and mixed phase oxides are known to exhibit photocatalytic activity (PCA)-driven bacterial resistance under UVA irradiation. Silver additions are reported to enhance PCA and reduce bacterial attachment. This study investigated the effects of silver-doping additions to three established anodization processes. Silver doping showed no significant influence on oxide crystallinity, surface topography, or surface wettability. Oxides from a sulfuric acid anodization process exhibited significantly enhanced PCA after silver doping, but silver-doped oxides produced from phosphoric-acid-containing electrolytes did not. Staphylococcus aureus attachment was also assessed under dark and UVA-irradiated conditions on each oxide. Each oxide exhibited a photocatalytic antimicrobial effect as indicated by significantly decreased bacterial attachment under UVA irradiation compared to dark conditions. However, only the phosphorus-doped mixed anatase and rutile phase oxide exhibited an additional significant reduction in bacteria attachment under UVA irradiation as a result of silver doping. The antimicrobial success of this oxide was attributed to the combination of the mixed phase oxide and higher silver-doping uptake levels.
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Affiliation(s)
- Aya Ali
- University of Mississippi Medical Center, Department of Biomedical Materials Science, Jackson, MS 39216, USA; (A.A.); (L.P.); (S.C.); (A.V.J.); (J.A.G.)
| | - Likhitha Polepalli
- University of Mississippi Medical Center, Department of Biomedical Materials Science, Jackson, MS 39216, USA; (A.A.); (L.P.); (S.C.); (A.V.J.); (J.A.G.)
| | - Sheetal Chowdhury
- University of Mississippi Medical Center, Department of Biomedical Materials Science, Jackson, MS 39216, USA; (A.A.); (L.P.); (S.C.); (A.V.J.); (J.A.G.)
| | - Mary A. Carr
- University of Mississippi Medical Center, Department of Cell and Molecular Biology, School of Medicine, Jackson, MS 39216, USA; (M.A.C.); (M.E.M.)
| | - Amol V. Janorkar
- University of Mississippi Medical Center, Department of Biomedical Materials Science, Jackson, MS 39216, USA; (A.A.); (L.P.); (S.C.); (A.V.J.); (J.A.G.)
| | - Mary E. Marquart
- University of Mississippi Medical Center, Department of Cell and Molecular Biology, School of Medicine, Jackson, MS 39216, USA; (M.A.C.); (M.E.M.)
| | - Jason A. Griggs
- University of Mississippi Medical Center, Department of Biomedical Materials Science, Jackson, MS 39216, USA; (A.A.); (L.P.); (S.C.); (A.V.J.); (J.A.G.)
| | - Joel D. Bumgardner
- Department of Biomedical Engineering, University of Memphis, Memphis, TN 38152, USA;
| | - Michael D. Roach
- University of Mississippi Medical Center, Department of Biomedical Materials Science, Jackson, MS 39216, USA; (A.A.); (L.P.); (S.C.); (A.V.J.); (J.A.G.)
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Zhou S, Peng H, Zhao A, Yang X, Lin D. Konjac glucomannan-based highly antibacterial active films loaded with thyme essential oil through bacterial cellulose nanofibers/Ag nanoparticles stabilized Pickering emulsions. Int J Biol Macromol 2024; 269:131875. [PMID: 38677701 DOI: 10.1016/j.ijbiomac.2024.131875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 04/15/2024] [Accepted: 04/24/2024] [Indexed: 04/29/2024]
Abstract
The aim of this study was to develop novel konjac glucomannan (KGM)-based highly antibacterial active films, where five types of films were prepared and compared. The microstructure results showed that KGM-based films loaded with thyme essential oil (TEO) through bacterial cellulose nanofibers/Ag nanoparticles (BCNs/Ag nanoparticles) stabilized Pickering emulsions (Type V films) displayed the smoothest surface and the most evenly dispersed TEO droplets as compared with the other four types of films. Moreover, Type V films showed the highest contact angle value (86.28°), the best thermal stability and mechanical properties. Furthermore, Type V films presented the highest total phenol content (13.23 mg gallic acid equivalent/g film) and the best antioxidant activity (33.96 %) as well as the best sustained-release property, thus showing the best antibacterial activity, which was probably due to that BCNs/Ag nanoparticles and TEO displayed a synergistic effect to some extent. Consequently, Type V film-forming solutions were used as coatings for tangerines. The results showed that the tangerines treated with Type V coatings displayed excellent fresh-keeping properties. Therefore, the coatings, KGM-based film-forming solutions loaded with TEO through BCNs/Ag nanoparticles stabilized Pickering emulsions, have great potential for the preservation of fruits and vegetables.
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Affiliation(s)
- Siyu Zhou
- Shaanxi Engineering Laboratory for Food Green Processing and Safety Control, Shaanxi Key Laboratory for Hazard Factors Assessment in Processing and Storage of Agricultural Products, and Xi'an Key Laboratory of Characteristic Fruit Storage and Preservation, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710062, China
| | - Haonan Peng
- Key Laboratory of Applied Surface and Colloid Chemistry (Ministry of Education), School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China
| | - Aiqing Zhao
- Shaanxi Engineering Laboratory for Food Green Processing and Safety Control, Shaanxi Key Laboratory for Hazard Factors Assessment in Processing and Storage of Agricultural Products, and Xi'an Key Laboratory of Characteristic Fruit Storage and Preservation, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710062, China
| | - Xingbin Yang
- Shaanxi Engineering Laboratory for Food Green Processing and Safety Control, Shaanxi Key Laboratory for Hazard Factors Assessment in Processing and Storage of Agricultural Products, and Xi'an Key Laboratory of Characteristic Fruit Storage and Preservation, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710062, China
| | - Dehui Lin
- Shaanxi Engineering Laboratory for Food Green Processing and Safety Control, Shaanxi Key Laboratory for Hazard Factors Assessment in Processing and Storage of Agricultural Products, and Xi'an Key Laboratory of Characteristic Fruit Storage and Preservation, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710062, China.
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Wu X, Li W, Herlah L, Koch M, Wang H, Schirhagl R, Włodarczyk-Biegun MK. Melt electrowritten poly-lactic acid /nanodiamond scaffolds towards wound-healing patches. Mater Today Bio 2024; 26:101112. [PMID: 38873104 PMCID: PMC11170272 DOI: 10.1016/j.mtbio.2024.101112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 05/18/2024] [Accepted: 05/31/2024] [Indexed: 06/15/2024] Open
Abstract
Multifunctional wound dressings, enriched with biologically active agents for preventing or treating infections and promoting wound healing, along with cell delivery capability, are highly needed. To address this issue, composite scaffolds with potential in wound dressing applications were fabricated in this study. The poly-lactic acid/nanodiamonds (PLA/ND) scaffolds were first printed using melt electrowriting (MEW) and then coated with quaternized β-chitin (QβC). The NDs were well-dispersed in the printed filaments and worked as fillers and bioactive additions to PLA material. Additionally, they improved coating effectiveness due to the interaction between their negative charges (from NDs) and positive charges (from QβC). NDs not only increased the thermal stability of PLA but also benefitted cellular behavior and inhibited the growth of bacteria. Scaffolds coated with QβC increased the effect of bacteria growth inhibition and facilitated the proliferation of human dermal fibroblasts. Additionally, we have observed rapid extracellular matrix (ECM) remodeling on QβC-coated PLA/NDs scaffolds. The scaffolds provided support for cell adhesion and could serve as a valuable tool for delivering cells to chronic wound sites. The proposed PLA/ND scaffold coated with QβC holds great potential for achieving fast healing in various types of wounds.
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Affiliation(s)
- Xixi Wu
- Department of Biomedical Engineering, University Medical Centre, Ant. Deusinglaan 1, 9713, AW, Groningen, the Netherlands
- Polymer Science, Zernike Institute for Advanced Materials, Faculty of Science and Engineering, University of Groningen, Nijenborgh 4, 9747, AG, the Netherlands
| | - Wenjian Li
- Advanced Production Engineering, Engineering and Technology Institute of Groningen, Faculty of Science and Engineering, University of Groningen, Nijenborgh 4, 9747, AG, the Netherlands
| | - Lara Herlah
- Department of Biomedical Engineering, University Medical Centre, Ant. Deusinglaan 1, 9713, AW, Groningen, the Netherlands
| | - Marcus Koch
- INM – Leibniz Institute for New Materials, Campus D2 2, 66123, Saarbrücken, Germany
| | - Hui Wang
- Nanostructured Materials and Interfaces, Zernike Institute for Advanced Materials, Faculty of Science and Engineering, University of Groningen, Nijenborgh 4, 9747, AG, the Netherlands
| | - Romana Schirhagl
- Department of Biomedical Engineering, University Medical Centre, Ant. Deusinglaan 1, 9713, AW, Groningen, the Netherlands
| | - Małgorzata K. Włodarczyk-Biegun
- Polymer Science, Zernike Institute for Advanced Materials, Faculty of Science and Engineering, University of Groningen, Nijenborgh 4, 9747, AG, the Netherlands
- Biotechnology Centre, The Silesian University of Technology, Krzywoustego 8, 44-100, Gliwice, Poland
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Marathe K, Naik J, Maheshwari V. Synthesis, characterisation and in vitro anticancer activity of conjugated protease inhibitor-silver nanoparticles (AgNPs-PI) against human breast MCF-7 and prostate PC-3 cancer cell lines. Bioprocess Biosyst Eng 2024; 47:931-942. [PMID: 38709274 DOI: 10.1007/s00449-024-03023-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Accepted: 04/13/2024] [Indexed: 05/07/2024]
Abstract
The conjugated silver nanoparticles using biomolecules have attracted great attention of researchers because physical dimensions and surface chemistry play important roles in toxicity and biocompatibility of AgNPs. Hence, in the current study, synthesis of bio-conjugated AgNPs with protein protease inhibitor (PI) isolated from Streptomyces spp. is reported. UV-visible spectra of PI and AgNPs showed stronger peaks at 280 and 405 nm, confirming the synthesis of conjugated AgNPs-PI. TEM and SEM images of AgNPs-PI showed spherical-shaped nanoparticles with a slight increase in particle size and thin amorphous layer around the surface of silver nanomaterial. Circular dichroism, FT-IR and fluorescence spectral studies confirmed AgNPs-PI conjugation. Conjugated AgNPs-PI showed excellent anticancer potential than AgNPs and protease inhibitor separately on human breast MCF-7 and prostate PC-3 cell lines. The findings revealed that surface modification of AgNPs with protein protease inhibitor stabilised the nanomaterial and increased its anticancer activity.
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Affiliation(s)
- Kiran Marathe
- University Institute of Chemical Technology, Kavayitri Bahinabai Chaudhari North Maharashtra University, Jalgaon, 425001, MS, India.
| | - Jitendra Naik
- University Institute of Chemical Technology, Kavayitri Bahinabai Chaudhari North Maharashtra University, Jalgaon, 425001, MS, India
| | - Vijay Maheshwari
- School of Life Sciences, Kavayitri Bahinabai Chaudhari North Maharashtra University, Jalgaon, 425001, MS, India
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Chauhan V, Farooq U, Fahmi M, A K, Tripathi P. Unveiling the anti-echinococcal efficacy of amide-based compounds: An in-silico and in-vitro study. Heliyon 2024; 10:e31205. [PMID: 38807875 PMCID: PMC11130662 DOI: 10.1016/j.heliyon.2024.e31205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2024] [Revised: 05/12/2024] [Accepted: 05/13/2024] [Indexed: 05/30/2024] Open
Abstract
Cystic echinococcosis (CE) is a significant global public health concern, particularly in regions where livestock rearing is prevalent. Despite its impact on morbidity and mortality, CE has received insufficient attention compared to other neglected tropical diseases. The complexities in CE management arise from challenges in early detection, effective treatment, and parasite eradication. The present study addresses this gap by exploring innovative therapeutic approaches using amide-based compounds. In recent years, computational approaches and in-vitro studies have become prominent in neglected tropical disease drug discovery. Leveraging insights from previous studies on amide-based compounds with anti-parasitic potential, this study systematically designed, synthesized, and characterized a library of 30 amide compounds. The research integrated in-silico screening, molecular docking, and in-vitro experimentation to assess the anti-echinococcal potential of these compounds. The study identified five promising amide compounds, namely 3,5-dinitro-N-p-tolylbenzamide, N-p-tolyl-1-naphthamide, N-p-tolyl-4-(trifluoromethoxy)benzamide, 4-pentyl-N-p-tolylbenzamide, and 2,3,4,5,6-pentafluoro-N-p-tolylbenzamide, based on their docking scores. These compounds were synthesized and characterized through various spectroscopic techniques, confirming their structural integrity. The in-vitro cytotoxicity assay on HepG2 cell lines revealed varying degrees of cytotoxicity for the synthesized compounds. Notably, 4-pentyl-N-p-tolylbenzamide demonstrated the least cytotoxicity. Subsequent scolicidal activity assessments on E. granulosus protoscoleces demonstrated the potent protoscolicidal activity of N-p-tolyl-1-naphthamide, indicating its potential as an effective anti-echinococcal agent. Overall, this study presents a comprehensive exploration of amide-based compounds as potential therapeutic agents against CE. The findings contribute to the development of innovative strategies for CE treatment, addressing the urgent need for effective and safe drugs in managing this neglected tropical disease.
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Affiliation(s)
- V. Chauhan
- Multi-Disciplinary Research Unit, Government Institute of Medical Sciences, Greater Noida, UP, 201310, India
| | - U Farooq
- Department of Basic Oral Medicine and Allied Dental Sciences, Faculty of Dentistry, Taif University, Taif, Kingdom of Saudi Arabia
| | - M. Fahmi
- Department of Restorative Dental Science, Faculty of Dentistry, Taif University, Taif, Kingdom of Saudi Arabia
| | - Khan A
- Department of Basic Oral Medicine and Allied Dental Sciences, Faculty of Dentistry, Taif University, Taif, Kingdom of Saudi Arabia
| | - P.K. Tripathi
- Department of Parasitology, Post Graduate Institute of Medical Education and Research, Chandigarh, 160012, India
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Wang W, Luo H, Wang H. Recent advances in micro/nanomotors for antibacterial applications. J Mater Chem B 2024; 12:5000-5023. [PMID: 38712692 DOI: 10.1039/d3tb02718j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
Currently, the rapid spread of multidrug-resistant bacteria derived from the indiscriminate use of traditional antibiotics poses a significant threat to public health worldwide. Moreover, established bacterial biofilms are extremely difficult to eradicate because of their high tolerance to traditional antimicrobial agents and extraordinary resistance to phagocytosis. Hence, it is of universal significance to develop novel robust and efficient antibacterial strategies to combat bacterial infections. Micro/nanomotors exhibit many intriguing properties, including enhanced mass transfer and micro-mixing resulting from their locomotion, intrinsic antimicrobial capabilities, active cargo delivery, and targeted treatment with precise micromanipulation, which facilitate the targeted delivery of antimicrobials to infected sites and their deep permeation into sites of bacterial biofilms for fast inactivation. Thus, the ideal antimicrobial activity of antibacterial micro/nanorobots makes them desirable alternatives to traditional antimicrobial treatments and has aroused extensive interest in recent years. In this review, recent advancements in antibacterial micro/nanomotors are briefly summarized, focusing on their synthetic methods, propulsion mechanism, and versatile antibacterial applications. Finally, some personal insights into the current challenges and possible future directions to translate proof-of-concept research to clinic application are proposed.
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Affiliation(s)
- Wenxia Wang
- School of Biomedical and Phamaceutical Sciences, Guangdong University of Technology, Guangzhou, 510006, China.
| | - Hangyu Luo
- School of Biomedical and Phamaceutical Sciences, Guangdong University of Technology, Guangzhou, 510006, China.
| | - Han Wang
- School of Biomedical and Phamaceutical Sciences, Guangdong University of Technology, Guangzhou, 510006, China.
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Aziz NMA, Goda DA, Abdel-Meguid DI, El-Sharouny EE, Soliman NA. A comparative study of the biosynthesis of CuNPs by Niallia circulans G9 and Paenibacillus sp. S4c strains: characterization and application as antimicrobial agents. Microb Cell Fact 2024; 23:156. [PMID: 38802818 PMCID: PMC11131221 DOI: 10.1186/s12934-024-02422-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Accepted: 05/12/2024] [Indexed: 05/29/2024] Open
Abstract
BACKGROUND Biosynthesis of metallic nanoparticles using microorganisms are a fabulous and emerging eco-friendly science with well-defined sizes, shapes and controlled monodispersity. Copper nanoparticles, among other metal particles, have sparked increased attention due to their applications in electronics, optics, catalysis, and antimicrobial agents. RESULTS This investigation explains the biosynthesis and characterization of copper nanoparticles from soil strains, Niallia circulans G9 and Paenibacillus sp. S4c by an eco-friendly method. The maximum reduction of copper ions and maximum synthesis CuNPs was provided by these strains. Biogenic formation of CuNPs have been characterized by UV-visible absorption spectroscopy, X-ray diffraction, Fourier transform infrared spectroscopy, X-ray analysis and transmission electron microscopy analysis. Using UV-visible spectrum scanning, the synthesised CuNPs' SPR spectra showed maximum absorption peaks at λ304&308 nm. TEM investigation of the produced CuNPs revealed the development of spherical/hexagonal nanoparticles with a size range of 13-100 nm by the G9 strain and spherical nanoparticles with a size range of 5-40 nm by the S4c strain. Functional groups and chemical composition of CuONPs were also confirmed. The antimicrobial activity of the biosynthesized CuNPs were investigated against some human pathogens. CuNPs produced from the G9 strain had the highest activity against Candida albicans ATCC 10,231 and the lowest against Pseudomonas aeruginosa ATCC 9027. CuNPs from the S4c strain demonstrated the highest activity against Escherichia coli ATCC 10,231 and the lowest activity against Klebsiella pneumonia ATCC 13,883. CONCLUSION The present work focused on increasing the CuNPs production by two isolates, Niallia circulans G9 and Paenibacillus sp. S4c, which were then characterized alongside. The used analytics and chemical composition techniques validated the existence of CuONPs in the G9 and S4c biosynthesized nano cupper. CuNPs of S4c are smaller and have a more varied shape than those of G9 strain, according to TEM images. In terms of antibacterial activity, the biosynthesized CuNPs from G9 and S4c were found to be more effective against Candida albicans ATCC 10,231 and E. coli ATCC 10,231, respectively.
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Affiliation(s)
- Nahla M Abdel Aziz
- Botany and Microbiology Department, Faculty of Science, Alexandria University, 21526, Alexandria, Egypt
| | - Doaa A Goda
- Bioprocess Development Department, Genetic Engineering and Biotechnology Research Institute (GEBRI), City of Scientific Research and Technological Applications (SRTA-City), Universities and Research Institutes Zone, P.O. 21934, New Borg El-Arab City, Alexandria, Egypt.
| | - Dina I Abdel-Meguid
- Botany and Microbiology Department, Faculty of Science, Alexandria University, 21526, Alexandria, Egypt
| | - Ebaa E El-Sharouny
- Botany and Microbiology Department, Faculty of Science, Alexandria University, 21526, Alexandria, Egypt
| | - Nadia A Soliman
- Bioprocess Development Department, Genetic Engineering and Biotechnology Research Institute (GEBRI), City of Scientific Research and Technological Applications (SRTA-City), Universities and Research Institutes Zone, P.O. 21934, New Borg El-Arab City, Alexandria, Egypt.
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Jackson J, Shademani A, Dosanjh M, Dietrich C, Pryjma M, Lambert DM, Thompson CJ. Combinations of Cannabinoids with Silver Salts or Silver Nanoparticles for Synergistic Antibiotic Effects against Methicillin-Resistant Staphylococcus aureus. Antibiotics (Basel) 2024; 13:473. [PMID: 38927140 PMCID: PMC11200472 DOI: 10.3390/antibiotics13060473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2024] [Revised: 05/17/2024] [Accepted: 05/20/2024] [Indexed: 06/28/2024] Open
Abstract
Silver has been shown to improve the antibiotic effects of other drugs against both Gram- positive and -negative bacteria. In this study, we investigated the antibiotic potential of cannabidiol (CBD), cannabichromene (CBC) and cannabigerol (CBG) and their acidic counterparts (CBDA, CBCA, CBGA) against Gram-positive bacteria and further explored the additive or synergistic effects of silver nitrate or silver nanoparticles using 96-well plate growth assays and viability (CFUs- colony-forming units). All six cannabinoids had strong antibiotic effects against MRSA with minimal inhibitory concentrations (MICs) of 2 mg/L for CBG, CBD and CBCA; 4 mg/L for CBGA; and 8 mg/L for CBC and CBDA. Using 96-well checkerboard assays, CBC, CBG and CBGA showed full or partial synergy with silver nitrate; CBC, CBDA and CBGA were fully synergistic with silver nanoparticles against MRSA. Using CFU assays, combinations of CBC, CBGA and CBG with either silver nitrate or silver nanoparticles, all at half or quarter MICs, demonstrated strong, time-dependent inhibition of bacterial growth (silver nitrate) and bactericidal effects (silver nanoparticles). These data will lead to further investigation into possible biomedical applications of specific cannabinoids in combination with silver salts or nanoparticles against drug-resistant Gram-positive bacteria.
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Affiliation(s)
- John Jackson
- Faculty of Pharmaceutical Sciences, University of British Columbia, 2405 Wesbrook Mall, Vancouver, BC V6T 1Z3, Canada
| | - Ali Shademani
- Department of Biomedical Engineering, University of British Columbia, 2222 Health Sciences Mall, Vancouver, BC V6T 1Z3, Canada
| | - Manisha Dosanjh
- Department of Microbiology and Immunology, University of British Columbia, Vancouver, BC V6T 1Z3, Canada (C.J.T.)
| | - Claudia Dietrich
- Faculty of Pharmaceutical Sciences, University of British Columbia, 2405 Wesbrook Mall, Vancouver, BC V6T 1Z3, Canada
| | - Mark Pryjma
- Department of Microbiology and Immunology, University of British Columbia, Vancouver, BC V6T 1Z3, Canada (C.J.T.)
| | - Dana M. Lambert
- Andira Pharmaceuticals Inc., 1600-925 W Georgia Street, Vancouver, BC V6C 3L2, Canada
| | - Charles J. Thompson
- Department of Microbiology and Immunology, University of British Columbia, Vancouver, BC V6T 1Z3, Canada (C.J.T.)
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Ali AH, Hachem M, Ahmmed MK. Docosahexaenoic acid-loaded nanoparticles: A state-of-the-art of preparation methods, characterization, functionality, and therapeutic applications. Heliyon 2024; 10:e30946. [PMID: 38774069 PMCID: PMC11107210 DOI: 10.1016/j.heliyon.2024.e30946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 05/08/2024] [Accepted: 05/08/2024] [Indexed: 05/24/2024] Open
Abstract
Docosahexaenoic acid (DHA, C22:6 n-3), an omega-3 polyunsaturated fatty acid, offers several beneficial effects. DHA helps in reducing depression, autoimmune diseases, rheumatoid arthritis, attention deficit hyperactivity syndrome, and cardiovascular diseases. It can stimulate the development of brain and nerve, alleviate lipids metabolism-related disorders, and enhance vision development. However, DHA susceptibility to chemical oxidation, poor water solubility, and unpleasant order could restrict its applications for nutritional and therapeutic purposes. To avoid these drawbacks and enhance its bioavailability, DHA can be encapsulated using an effective delivery system. Several encapsulation methods are recognized, and DHA-loaded nanoparticles have demonstrated numerous benefits. In clinical studies, positive influences on the development of several diseases have been reported, but some assumptions are conflicting and need more exploration, since DHA has a systemic and not a targeted release at the required level. This might cause the applications of nanoparticles that could allow DHA release at the required level and improve its efficiency, thus resulting in a better controlling of several diseases. In the current review, we focused on researches investigating the formulation and development of DHA-loaded nanoparticles using different delivery systems, including low-density lipoprotein, zinc oxide, silver, zein, and resveratrol-stearate. Silver-DHA nanoparticles presented a typical particle size of 24 nm with an incorporation level of 97.67 %, while the entrapment efficiency of zinc oxide-DHA nanoparticles represented 87.3 %. By using zein/Poly (lactic-co-glycolic acid) stabilized nanoparticles, DHA's encapsulation level reached 84.6 %. We have also highlighted the characteristics, functionality and medical implementation of these nanoparticles in the treatment of inflammations, brain disorders, diabetes as well as hepatocellular carcinoma.
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Affiliation(s)
- Abdelmoneim H. Ali
- Department of Chemical and Petroleum Engineering, Khalifa University of Science and Technology, Abu Dhabi, 127788, United Arab Emirates
| | - Mayssa Hachem
- Department of Chemistry and Healthcare Engineering Innovation Group, Khalifa University of Sciences and Technology, Abu Dhabi, 127788, United Arab Emirates
| | - Mirja Kaizer Ahmmed
- Department of Fishing and Post-harvest Technology, Chattogram Veterinary and Animal Sciences University, Chattogram, Bangladesh
- Riddet Institute, Massey University, Palmerston North, New Zealand
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11
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Qi LX, Wang XT, Huang JP, Yue TY, Lu YS, San DM, Xu YX, Han YT, Guo XY, Xie WD, Zhou YX. Silver Nanoparticles Encapped by Dihydromyricetin: Optimization of Green Synthesis, Characterization, Toxicity, and Anti-MRSA Infection Activities for Zebrafish ( Danio rerio). Int J Mol Sci 2024; 25:5255. [PMID: 38791295 PMCID: PMC11120860 DOI: 10.3390/ijms25105255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 05/02/2024] [Accepted: 05/03/2024] [Indexed: 05/26/2024] Open
Abstract
To achieve the environmentally friendly and rapid green synthesis of efficient and stable AgNPs for drug-resistant bacterial infection, this study optimized the green synthesis process of silver nanoparticles (AgNPs) using Dihydromyricetin (DMY). Then, we assessed the impact of AgNPs on zebrafish embryo development, as well as their therapeutic efficacy on zebrafish infected with Methicillin-resistant Staphylococcus aureus (MRSA). Transmission electron microscopy (TEM) and dynamic light-scattering (DLS) analyses revealed that AgNPs possessed an average size of 23.6 nm, a polymer dispersity index (PDI) of 0.197 ± 0.0196, and a zeta potential of -18.1 ± 1.18 mV. Compared to other published green synthesis products, the optimized DMY-AgNPs exhibited smaller sizes, narrower size distributions, and enhanced stability. Furthermore, the minimum concentration of DMY-AgNPs required to affect zebrafish hatching and survival was determined to be 25.0 μg/mL, indicating the low toxicity of DMY-AgNPs. Following a 5-day feeding regimen with DMY-AgNP-containing food, significant improvements were observed in the recovery of the gills, intestines, and livers in MRSA-infected zebrafish. These results suggested that optimized DMY-AgNPs hold promise for application in aquacultures and offer potential for further clinical use against drug-resistant bacteria.
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Affiliation(s)
- Ling-Xiao Qi
- Marine College, Shandong University, Weihai 264209, China; (L.-X.Q.); (X.-T.W.); (J.-P.H.); (T.-Y.Y.); (Y.-S.L.); (D.-M.S.); (Y.-X.X.); (Y.-T.H.); (X.-Y.G.)
- SDU-ANU Joint Science College, Shandong University, Weihai 264209, China
| | - Xue-Ting Wang
- Marine College, Shandong University, Weihai 264209, China; (L.-X.Q.); (X.-T.W.); (J.-P.H.); (T.-Y.Y.); (Y.-S.L.); (D.-M.S.); (Y.-X.X.); (Y.-T.H.); (X.-Y.G.)
| | - Jin-Ping Huang
- Marine College, Shandong University, Weihai 264209, China; (L.-X.Q.); (X.-T.W.); (J.-P.H.); (T.-Y.Y.); (Y.-S.L.); (D.-M.S.); (Y.-X.X.); (Y.-T.H.); (X.-Y.G.)
| | - Ting-Yan Yue
- Marine College, Shandong University, Weihai 264209, China; (L.-X.Q.); (X.-T.W.); (J.-P.H.); (T.-Y.Y.); (Y.-S.L.); (D.-M.S.); (Y.-X.X.); (Y.-T.H.); (X.-Y.G.)
| | - Yun-Shu Lu
- Marine College, Shandong University, Weihai 264209, China; (L.-X.Q.); (X.-T.W.); (J.-P.H.); (T.-Y.Y.); (Y.-S.L.); (D.-M.S.); (Y.-X.X.); (Y.-T.H.); (X.-Y.G.)
- SDU-ANU Joint Science College, Shandong University, Weihai 264209, China
| | - Dong-Mei San
- Marine College, Shandong University, Weihai 264209, China; (L.-X.Q.); (X.-T.W.); (J.-P.H.); (T.-Y.Y.); (Y.-S.L.); (D.-M.S.); (Y.-X.X.); (Y.-T.H.); (X.-Y.G.)
| | - Yu-Xun Xu
- Marine College, Shandong University, Weihai 264209, China; (L.-X.Q.); (X.-T.W.); (J.-P.H.); (T.-Y.Y.); (Y.-S.L.); (D.-M.S.); (Y.-X.X.); (Y.-T.H.); (X.-Y.G.)
- SDU-ANU Joint Science College, Shandong University, Weihai 264209, China
| | - Ya-Tong Han
- Marine College, Shandong University, Weihai 264209, China; (L.-X.Q.); (X.-T.W.); (J.-P.H.); (T.-Y.Y.); (Y.-S.L.); (D.-M.S.); (Y.-X.X.); (Y.-T.H.); (X.-Y.G.)
- SDU-ANU Joint Science College, Shandong University, Weihai 264209, China
| | - Xiang-Yi Guo
- Marine College, Shandong University, Weihai 264209, China; (L.-X.Q.); (X.-T.W.); (J.-P.H.); (T.-Y.Y.); (Y.-S.L.); (D.-M.S.); (Y.-X.X.); (Y.-T.H.); (X.-Y.G.)
- SDU-ANU Joint Science College, Shandong University, Weihai 264209, China
| | - Wei-Dong Xie
- Marine College, Shandong University, Weihai 264209, China; (L.-X.Q.); (X.-T.W.); (J.-P.H.); (T.-Y.Y.); (Y.-S.L.); (D.-M.S.); (Y.-X.X.); (Y.-T.H.); (X.-Y.G.)
| | - Yan-Xia Zhou
- Marine College, Shandong University, Weihai 264209, China; (L.-X.Q.); (X.-T.W.); (J.-P.H.); (T.-Y.Y.); (Y.-S.L.); (D.-M.S.); (Y.-X.X.); (Y.-T.H.); (X.-Y.G.)
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12
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Barry MJ, Baghlaf K, Alamoudi N. Silver Diamine Fluoride as a Medicament for the Indirect Pulp Therapy in Primary Teeth: A Review of the Literature. Cureus 2024; 16:e60780. [PMID: 38903314 PMCID: PMC11188972 DOI: 10.7759/cureus.60780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/21/2024] [Indexed: 06/22/2024] Open
Abstract
Silver diamine fluoride (SDF) has been demonstrated to be effective in arresting caries lesions and, recently, clinical trials have assessed the effectiveness of SDF as a medicament for indirect pulp therapy (IPT) in primary teeth. This review aims to summarize the literature related to the use of SDF and find out if SDF can be used as an effective material for IPT. A literature search was undertaken on electronic databases including PubMed, MEDLINE, ScienceDirect, and Google Scholar, which elicited 50 studies employing different materials in the IPT of primary molars; however, of them, only four clinical trials used SDF as indirect pulp capping (IPC) material. SDF has the potential to be a useful material for IPT in primary teeth. It is a handy choice for pediatric dentists due to its minimum invasiveness, ease of application, and ability to stop the progression of caries. However, more studies are needed to determine whether SDF can be used routinely for IPT and whether it can even replace the currently available materials, as well as to fully realize its potential and establish criteria for its ideal application in IPT procedures.
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Affiliation(s)
- Mohammed J Barry
- Pediatric Dentistry, Department of Pediatric Dentistry, King Abdulaziz University, Jeddah, SAU
| | - Khlood Baghlaf
- Pediatric Dentistry, Department of Pediatric Dentistry, King Abdulaziz University, Jeddah, SAU
| | - Najlaa Alamoudi
- Pediatric Dentistry, Department of Pediatric Dentistry, King Abdulaziz University, Jeddah, SAU
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13
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Haque M, Kalita M, Chamlagai D, Lyndem S, Koley S, Kumari P, Aguan K, Singha Roy A. Human serum albumin directed formation of cadmium telluride quantum dots: Applications in biosensing, anti-bacterial activities and cell cytotoxicity measurements. Int J Biol Macromol 2024; 268:131862. [PMID: 38670183 DOI: 10.1016/j.ijbiomac.2024.131862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 04/22/2024] [Accepted: 04/23/2024] [Indexed: 04/28/2024]
Abstract
Although cadmium-based quantum dots (QDs) are highly promising candidates for numerous biological applications, their intrinsic toxicity limits their pertinency in living systems. Surface functionalization of QDs with appropriate molecules could reduce the toxicity level. Herein, we have synthesized the smaller sized (1-5 nm) aqueous-compatible biogenic CdTe QDs using human serum albumin (HSA) as a surface passivating agent via a greener approach. HSA-functionalized CdTe QDs have been explored in multiple in vitro sensing and biological applications, namely, (1) sensing, (2) anti-bacterial and (3) anti-cancer properties. Using CdTe-HSA QDs as a fluorescence probe, a simple fluorometric method has been developed for highly sensitive and selective detection of blood marker bilirubin and hazardous Hg2+ ion with a limit of detection (LOD) of 3.38 and 0.53 ng/mL, respectively. CdTe-HSA QDs also acts as a sensor for standard antibiotics, tetracycline and rifampicin with LOD values of 41.34 and 114.99 ng/mL, respectively. Nano-sized biogenic CdTe-HSA QDs have shown promising anti-bacterial activities against both gram-negative, E. coli and gram-positive, E. faecalis strains confirming more effectiveness against E. faecalis strains. The treatment of human cervical cancer cell lines (HeLa cells) with the synthesized QDs reflected the proficient cytotoxic properties of QDs.
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Affiliation(s)
- Mahabul Haque
- Department of Chemistry, National Institute of Technology Meghalaya, Shillong 793003, India
| | - Mitul Kalita
- Department of Chemistry, National Institute of Technology Meghalaya, Shillong 793003, India
| | - Dipak Chamlagai
- Department of Chemistry, North-Eastern Hill University, Shillong 793022, India
| | - Sona Lyndem
- Department of Chemistry, National Institute of Technology Meghalaya, Shillong 793003, India
| | - Sudipta Koley
- Department of Physics, Amity Institute of Applied Sciences, Amity University, Kolkata 700135, India
| | - Puja Kumari
- Department of Biotechnology & Bioinformatics, North-Eastern Hill University, Shillong 793022, India
| | - Kripamoy Aguan
- Department of Biotechnology & Bioinformatics, North-Eastern Hill University, Shillong 793022, India
| | - Atanu Singha Roy
- Department of Chemistry, National Institute of Technology Meghalaya, Shillong 793003, India.
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14
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Suran S, Kamyar N, Huang K, Foroutan F, Balakrishna Pillai P, Liu X, Vaughan J, Wilson D, Day PJ, Nair RR. Tunable Release of Ions from Graphene Oxide Laminates for Sustained Antibacterial Activity in a Biomimetic Environment. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2304850. [PMID: 38686680 DOI: 10.1002/smll.202304850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 02/29/2024] [Indexed: 05/02/2024]
Abstract
Silver has long been recognized for its potent antimicrobial properties, but achieving a slow and longer-term delivery of silver ions presents significant challenges. Previous efforts to control silver ion dosages have struggled to sustain release for extended periods in biomimetic environments, especially in the presence of complex proteins. This challenge is underscored by the absence of technology for sustaining antimicrobial activity, especially in the context of orthopedic implants where long-term efficacy, extending beyond 7 days, is essential. In this study, the tunable, slow, and longer-term release of silver ions from the two-dimensional (2D) nanocapillaries of graphene oxide (GO) laminates incorporated with silver ions (Ag-GO) for antimicrobial applications are successfully demonstrated. To closely mimic a physiologically relevant serum-based environment, a novel in vitro study model using 100% fetal bovine serum (FBS) is introduced as the test medium for microbiology, biocompatibility, and bioactivity studies. To emulate fluid circulation in a physiological environment, the in vitro studies are challenged with serum exchange protocols on different days. The findings show that the Ag-GO coating can sustainably release silver ions at a minimum dosage of 10 µg cm-2 day-1, providing an effective and sustained antimicrobial barrier for over ten days.
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Affiliation(s)
- Swathi Suran
- National Graphene Institute & Department of Chemical Engineering, University of Manchester, Manchester, M13 9PL, UK
| | - Negin Kamyar
- National Graphene Institute & Department of Chemical Engineering, University of Manchester, Manchester, M13 9PL, UK
| | - Kun Huang
- National Graphene Institute & Department of Chemical Engineering, University of Manchester, Manchester, M13 9PL, UK
| | - Farzad Foroutan
- National Graphene Institute & Department of Chemical Engineering, University of Manchester, Manchester, M13 9PL, UK
| | - Premlal Balakrishna Pillai
- National Graphene Institute & Department of Chemical Engineering, University of Manchester, Manchester, M13 9PL, UK
| | - Xuzhao Liu
- Department of Materials, University of Manchester/Photon Science Institute, University of Manchester, Manchester, M13 9PL, UK
| | - John Vaughan
- T. J. Smith and Nephew Limited, 101 Hessle Road, Hull, HU3 2BN, UK
| | - Darren Wilson
- T. J. Smith and Nephew Limited, 101 Hessle Road, Hull, HU3 2BN, UK
| | - Philip J Day
- Manchester Institute of Biotechnology & Division of Evolution, Infection & Genomic Sciences, University of Manchester, Manchester, M13 9PL, UK
| | - Rahul R Nair
- National Graphene Institute & Department of Chemical Engineering, University of Manchester, Manchester, M13 9PL, UK
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15
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Ma C, Liu B, Du L, Liu W, Zhu Y, Chen T, Wang Z, Chen H, Pang Y. Green Preparation and Antibacterial Activity Evaluation of AgNPs- Blumea balsamifera Oil Nanoemulsion. Molecules 2024; 29:2009. [PMID: 38731501 PMCID: PMC11085303 DOI: 10.3390/molecules29092009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Revised: 04/19/2024] [Accepted: 04/22/2024] [Indexed: 05/13/2024] Open
Abstract
Bacterial infection is a thorny problem, and it is of great significance to developing green and efficient biological antibacterial agents that can replace antibiotics. This study aimed to rapidly prepare a new type of green antibacterial nanoemulsion containing silver nanoparticles in one step by using Blumea balsamifera oil (BBO) as an oil phase and tea saponin (TS) as a natural emulsifier and reducing agent. The optimum preparation conditions of the AgNPs@BBO-TS NE were determined, as well as its physicochemical properties and antibacterial activity in vitro being investigated. The results showed that the average particle size of the AgNPs@BBO-TS NE was 249.47 ± 6.23 nm, the PDI was 0.239 ± 0.003, and the zeta potential was -35.82 ± 4.26 mV. The produced AgNPs@BBO-TS NE showed good stability after centrifugation and 30-day storage. Moreover, the AgNPs@BBO-TS NE had an excellent antimicrobial effect on Staphylococcus aureus, Escherichia coli, and Pseudomonas aeruginosa. These results demonstrated that the AgNPs@BBO-TS NE produced in this study can be used as an efficient and green antibacterial agent in the biomedical field.
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Affiliation(s)
- Chunfang Ma
- College of Chinese Medicine Resources, Guangdong Pharmaceutical University, Yunfu 527325, China; (C.M.); (B.L.); (L.D.); (W.L.)
| | - Bingnan Liu
- College of Chinese Medicine Resources, Guangdong Pharmaceutical University, Yunfu 527325, China; (C.M.); (B.L.); (L.D.); (W.L.)
| | - Lingfeng Du
- College of Chinese Medicine Resources, Guangdong Pharmaceutical University, Yunfu 527325, China; (C.M.); (B.L.); (L.D.); (W.L.)
| | - Wei Liu
- College of Chinese Medicine Resources, Guangdong Pharmaceutical University, Yunfu 527325, China; (C.M.); (B.L.); (L.D.); (W.L.)
| | - Yue Zhu
- College of Pharmaceutical Sciences, Guizhou University of Traditional Chinese Meidicine, Guiyang 550025, China; (T.C.); (Z.W.)
- Nano-Drug Technology Research Center of Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
| | - Teng Chen
- College of Pharmaceutical Sciences, Guizhou University of Traditional Chinese Meidicine, Guiyang 550025, China; (T.C.); (Z.W.)
- Nano-Drug Technology Research Center of Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
| | - Zuhua Wang
- College of Pharmaceutical Sciences, Guizhou University of Traditional Chinese Meidicine, Guiyang 550025, China; (T.C.); (Z.W.)
- Nano-Drug Technology Research Center of Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
| | - Hongpeng Chen
- College of Chinese Medicine Resources, Guangdong Pharmaceutical University, Yunfu 527325, China; (C.M.); (B.L.); (L.D.); (W.L.)
| | - Yuxin Pang
- College of Chinese Medicine Resources, Guangdong Pharmaceutical University, Yunfu 527325, China; (C.M.); (B.L.); (L.D.); (W.L.)
- College of Pharmaceutical Sciences, Guizhou University of Traditional Chinese Meidicine, Guiyang 550025, China; (T.C.); (Z.W.)
- Yunfu Traditional Chinese Medicine Resources and Germplasm Resources Database Management Center, Yunfu 527325, China
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16
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Khatoon J, Mehmood A, Khalid AUR, Khan MAR, Ahmad KS, Amjad MS, Bashir U, Raffi M, Proćków J. Green-fabricated silver nanoparticles from Quercus incana leaf extract to control the early blight of tomatoes caused by Alternaria solani. BMC PLANT BIOLOGY 2024; 24:302. [PMID: 38637784 PMCID: PMC11027421 DOI: 10.1186/s12870-024-05008-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Accepted: 04/10/2024] [Indexed: 04/20/2024]
Abstract
BACKGROUND Early blight (EB) of Tomatoes, caused by Alternaria solani, is a serious fungal disease that adversely affects tomato production. Infection is characterized by dark lesions on leaves, stems, and fruits. Several agrochemicals can be used to control infection, these chemicals may disrupt environmental equilibrium. An alternative technology is needed to address this significant fungal threat. This study was designed to control the growth of EB in tomatoes caused by A. solani, using green-fabricated silver nanoparticles (Ag-NPs). RESULTS Ag-NPs were synthesized through an environmentally friendly and cost-effective approach using leaf extract of Quercus incana Roxb. (Fagaceae). The physico-chemical characterization of the Ag-NPs was conducted through UV-visible spectroscopy, scanning electron microscopy, X-ray diffraction analysis, and Fourier transform infrared spectrometry. The Ag-NPs produced were round with a mean diameter of 27 nm. The antifungal activity of these Ag-NPs was assessed through in vitro Petri plate and in vitro leaflet assays against A. solani. The green fabricated Ag-NPs exhibited excellent antifungal activity in vitro at a concentration of 100 mg/l against A. solani, inhibiting growth by 98.27 ± 1.58% and 92.79 ± 1.33% during Petri plate and leaflet assays, respectively. CONCLUSION In conclusion, this study suggests the practical application of green-fabricated Ag-NPs from Q. incana leaf extract against A. solani to effectively control EB disease in tomatoes.
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Affiliation(s)
- Javaria Khatoon
- Department of Botany, University of Poonch Rawalakot, Rawalakot, Azad Jammu and Kashmir, 12350, Pakistan
| | - Ansar Mehmood
- Department of Botany, University of Poonch Rawalakot, Rawalakot, Azad Jammu and Kashmir, 12350, Pakistan.
| | - Abd Ur Rehman Khalid
- Department of Plant Pathology, University of Poonch Rawalakot, Rawalakot, Azad Jammu and Kashmir, 12350, Pakistan
| | - Muhammad Abdul Rauf Khan
- Department of Physics, University of Poonch Rawalakot, Rawalakot, Azad Jammu and Kashmir, 12350, Pakistan
| | - Khawaja Shafique Ahmad
- Department of Botany, University of Poonch Rawalakot, Rawalakot, Azad Jammu and Kashmir, 12350, Pakistan
| | - Muhammad Shoaib Amjad
- Department of Botany, Women University of Azad Jammu & Kashmir Bagh, Bagh, 12500, Pakistan
| | - Urooj Bashir
- Department of Botany, University of Poonch Rawalakot, Rawalakot, Azad Jammu and Kashmir, 12350, Pakistan
| | - Muhammad Raffi
- National Institute of Lasers and Optronics College, Pakistan Institute of Engineering and Applied Sciences, Nilore, Islamabad, 45650, Pakistan
| | - Jarosław Proćków
- Department of Plant Biology, Institute of Environmental Biology, Wrocław University of Environmental and Life Sciences, ul. Kożuchowska 5b, Wrocław, 51-631, Poland.
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17
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Piao Y, Himbert S, Li Z, Liu J, Zhao Z, Yu H, Liu S, Shao S, Fefer M, Rheinstädter MC, Shen Y. Alkylated EDTA potentiates antibacterial photodynamic activity of protoporphyrin. J Nanobiotechnology 2024; 22:161. [PMID: 38589895 PMCID: PMC11003131 DOI: 10.1186/s12951-024-02353-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Accepted: 02/20/2024] [Indexed: 04/10/2024] Open
Abstract
Antibiotic resistance has garnered significant attention due to the scarcity of new antibiotics in development. Protoporphyrin IX (PpIX)-mediated photodynamic therapy shows promise as a novel antibacterial strategy, serving as an alternative to antibiotics. However, the poor solubility of PpIX and its tendency to aggregate greatly hinder its photodynamic efficacy. In this study, we demonstrate that alkylated EDTA derivatives (aEDTA), particularly C14-EDTA, can enhance the solubility of PpIX by facilitating its dispersion in aqueous solutions. The combination of C14-EDTA and PpIX exhibits potent antibacterial activity against Staphylococcus aureus (S. aureus) when exposed to LED light irradiation. Furthermore, this combination effectively eradicates S. aureus biofilms, which are known to be strongly resistant to antibiotics, and demonstrates high therapeutic efficacy in an animal model of infected ulcers. Mechanistic studies reveal that C14-EDTA can disrupt PpIX crystallization, increase bacterial membrane permeability and sequester divalent cations, thereby improving the accumulation of PpIX in bacteria. This, in turn, enhances reactive oxygen species (ROS) production and the antibacterial photodynamic activity. Overall, this effective strategy holds great promise in combating antibiotic-resistant strains.
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Affiliation(s)
- Ying Piao
- Zhejiang Key Laboratory of Smart Biomaterials and Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310058, China
| | - Sebastian Himbert
- Department of Physics and Astronomy, McMaster University, Hamilton, ON, L8S 3Z5, Canada.
| | - Zifan Li
- Zhejiang Key Laboratory of Smart Biomaterials and Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310058, China
| | - Jun Liu
- Suncor AgroScience, Mississauga, ON, L5K 1A8, Canada
| | - Zhihao Zhao
- Zhejiang Key Laboratory of Smart Biomaterials and Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310058, China
| | - Huahai Yu
- Zhejiang Key Laboratory of Smart Biomaterials and Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310058, China
| | - Shuangshuang Liu
- Zhejiang Key Laboratory of Smart Biomaterials and Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310058, China
| | - Shiqun Shao
- Zhejiang Key Laboratory of Smart Biomaterials and Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310058, China.
| | - Michael Fefer
- Suncor AgroScience, Mississauga, ON, L5K 1A8, Canada
| | - Maikel C Rheinstädter
- Department of Physics and Astronomy, McMaster University, Hamilton, ON, L8S 3Z5, Canada.
| | - Youqing Shen
- Zhejiang Key Laboratory of Smart Biomaterials and Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310058, China.
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18
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Missier MS, Mahesh R, Dinesh SPS, Rajeshkumar S, Amalorpavam V. In-Vitro Cytotoxic Evaluation of Titanium Dioxide Nanoparticle Using L929 Cell Lines. JOURNAL OF PHARMACY AND BIOALLIED SCIENCES 2024; 16:S1468-S1473. [PMID: 38882869 PMCID: PMC11174319 DOI: 10.4103/jpbs.jpbs_824_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 10/01/2023] [Accepted: 10/05/2023] [Indexed: 06/18/2024] Open
Abstract
Tooth movement in orthodontic therapy is connected to the frictional force that is created as the wire passes over the bracket. It is possible for teeth to move quickly when friction is at a minimum. Wires coated with nanoparticles have been found to reduce friction as a result of current developments in the orthodontics sector. Having an antimicrobial property is an added benefit. To reduce the friction generated by brackets, wires, and bands by lessening their cytotoxicity, this study examines the potential use of TiO2 nanoparticles in orthodontics. A monolayer of L929 was utilized in an indirect cytotoxicity test to evaluate the cytotoxicity of the coated orthodontic wire. The absence of reactive zones in our sample data demonstrates that TiO2 is not cytotoxic. Considering the results of our study, we conclude that TiO2 is secure for use as a coating for orthodontic devices.
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Affiliation(s)
- Mary Sheloni Missier
- Department of Orthodontics, SIMATS, Saveetha University, Chennai, Tamil Nadu, India
| | - R Mahesh
- Department of Pedodontics, Saveetha Dental College and Hospital, SIMATS, Saveetha University, Chennai, Tamil Nadu, India
| | - S P Saravana Dinesh
- Department of Pedodontics, Saveetha Dental College and Hospital, SIMATS, Saveetha University, Chennai, Tamil Nadu, India
| | - S Rajeshkumar
- Department of Pharmacology, Saveetha Dental College and Hospital, SIMATS, Saveetha University, Chennai, Tamil Nadu, India
| | - V Amalorpavam
- Department of Prosthodontics, Rajas Dental College and Hospital, Tirunelveli, Tamil Nadu, India
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19
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Arslan S, Ekrikaya S, Ildiz N, Yusufbeyoglu S, Ocsoy İ. Evaluation of the antibacterial activity of dental adhesive containing biogenic silver nanoparticles decorated nanographene oxide nanocomposites (Ag@nGO NCs) and effect on bond strength to dentine. Odontology 2024; 112:341-354. [PMID: 37436660 DOI: 10.1007/s10266-023-00836-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 06/30/2023] [Indexed: 07/13/2023]
Abstract
Our study aimed to evaluate the antibacterial activities and dentin bond strengths of silver nanoparticles (Ag NPs) and silver nano-graphene oxide nanocomposites (Ag@nGO NCs) produced by green and chemical synthesis methods added to the dental adhesive. Ag NPs were produced by green synthesis (biogenic) (B-Ag NPs) and chemical synthesis methods (C-Ag NPs) and deposited on nGO (nano-graphene oxide). Ag NPs and Ag@nGO NCs (0.05% w/w) were added to the primer and bond (Clearfil SE Bond). Group 1: control, Group 2: nGO, Group 3: B-Ag NPs, Group 4: B-Ag@nGO NCs, Group 5: C-Ag NPs, Group 6: C-Ag@nGO NCs. Streptococcus mutans (S. mutans) live/dead assay analysis, MTT metabolic activity test, agar disc diffusion test, lactic acid production, and colony forming units (CFUs) tests were performed. Bond strength values were determined by the microtensile bond strength test (μTBS). Failure types were determined by evaluating with SEM. Statistical analysis was performed using one-way ANOVA and two-way ANOVA (p < 0.05). There was a difference between the groups in the viable bacteria ratio and lactic acid production tests (p < 0.05). When the inhibition zone and S. mutans CFUs were evaluated, there was no difference between Group 3 and Group 4 (p > 0.05), but there was a difference between the other groups (p < 0.05). When the metabolic activity of S. mutans was evaluated, there was a difference between Group 1 and other groups, and between Group 2 and Group 5, and Group 6 (p < 0.05). There was no difference between the groups in the μTBS values (p > 0.05). As a result, although the antibacterial activity of B-Ag NPs and B-Ag@nGO Ag NPs obtained by green synthesis is lower than that of chemically synthesis obtained C-Ag NPs and C-Ag@nGO NCs, they provided higher antibacterial activity compared to the control group and did not reduce μTBS. The addition of biogenic Ag NPs to the adhesive system increased the antibacterial effect by maintaining the bond strength of the adhesive. Antibacterial adhesives can increase the restoration life by protecting the tooth-adhesive interface.
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Affiliation(s)
- Soley Arslan
- Department of Restorative Dentistry, Faculty of Dentistry, Erciyes University, Kayseri, Turkey
| | - Semiha Ekrikaya
- Department of Restorative Dentistry, Faculty of Dentistry, Nuh Naci Yazgan University, Kayseri, Turkey.
| | - Nilay Ildiz
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Erciyes University, Kayseri, Turkey
| | - Sadi Yusufbeyoglu
- Department of Pharmaceutical Botany, Faculty of Gulhane Pharmacy, University of Health Sciences, Ankara, Turkey
| | - İsmail Ocsoy
- Department of Analytical Chemistry, Faculty of Pharmacy, Erciyes University, Kayseri, Turkey
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20
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Li R, Chen W, Li J, Zhang C, Sun Y, Tang X, Liu Y. Synthesis of the Ag 2S/PANI@PES Composite Membrane and Its Antipollution Properties. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:5869-5877. [PMID: 38437509 DOI: 10.1021/acs.langmuir.3c03769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/06/2024]
Abstract
Membrane separation technology offers a sustainable and efficient solution to wastewater management; however, membrane fouling significantly impedes its application. Photocatalytic membranes, integrating photocatalytic and membrane separation technologies, enhance membrane separation efficacy while effectively mitigating organic and biological contaminations. In this work, Ag2S/PANI@PES composite membranes were prepared via a facile in situ polymerization and successive layer adsorption technique. The modified poly(ether sulfone) (PES) membrane demonstrated improved hydrophilicity and separation performance, and its heterostructure between polyaniline (PANI), Ag0, and Ag2S effectively addressed organic fouling issues. Moreover, Ag2S/PANI@PES exhibited outstanding antimicrobial properties, as well as chemical and mechanical stability.
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Affiliation(s)
- Ruiqi Li
- Key Laboratory of Superlight Materials and Surface Technology of Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, PR China
| | - Wenhang Chen
- Key Laboratory of Superlight Materials and Surface Technology of Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, PR China
| | - Junqing Li
- Key Laboratory of Superlight Materials and Surface Technology of Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, PR China
| | - Chunhong Zhang
- Key Laboratory of Superlight Materials and Surface Technology of Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, PR China
- Yantai Research Institute of Harbin Engineering University, Yantai 26400, PR China
| | - Yueling Sun
- Key Laboratory of Superlight Materials and Surface Technology of Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, PR China
| | - XiaoYan Tang
- Key Laboratory of Superlight Materials and Surface Technology of Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, PR China
| | - Yuan Liu
- Key Laboratory of Superlight Materials and Surface Technology of Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, PR China
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21
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Shende SS, Gade AK, Minkina TM, Ingle PU, Rajput VD, Sushkova SN, Mandzhieva SS, Rai M, Wong MH. Exploring sustainable management by using green nano-silver to combat three post-harvest pathogenic fungi in crops. DISCOVER NANO 2024; 19:53. [PMID: 38503968 PMCID: PMC10951150 DOI: 10.1186/s11671-024-03986-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Accepted: 03/06/2024] [Indexed: 03/21/2024]
Abstract
Global crop protection and food security have become critical issues to achieve the 'Zero Hunger' goal in recent years, as significant crop damage is primarily caused by biotic factors. Applying nanoparticles in agriculture could enhance crop yield. Nano-silver, or AgNPs, have colossal importance in many fields like biomedical, agriculture, and the environment due to their antimicrobial potential. In this context, nano-silver was fabricated by Citrus medica L. (Cm) fruit juice, detected visually and by UV-Vis spectrophotometric analysis. Further, AgNPs were characterized by advanced techniques. UV-Vis spectroscopic analysis revealed absorbance spectra at around 487 nm. The zeta potential measurement value was noted as -23.7 mV. Spectral analysis by FT-IR proved the capping of the acidic groups. In contrast, the XRD analysis showed the Miller indices like the face-centered cubic (fcc) crystalline structure. NTA revealed a mean size of 35 nm for nano-silver with a 2.4 × 108 particles mL-1 concentration. TEM analysis demonstrated spherical Cm-AgNPs with 20-30 nm sizes. The focus of this research was to evaluate the antifungal activity of biogenic AgNPs against post-harvest pathogenic fungi, including Aspergillus niger, A. flavus, and Alternaria alternata. The Cm-AgNPs showed significant antifungal activity in the order of A. niger > A. flavus > A. alternata. The biogenic Cm-AgNPs can be used for the inhibition of toxigenic fungi.
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Affiliation(s)
- Sudhir S Shende
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don, Russia.
- Nanobiotechnology Laboratory, Department of Biotechnology, Sant Gadge Baba Amravati University, Amravati, MS, India.
| | - Aniket K Gade
- Nanobiotechnology Laboratory, Department of Biotechnology, Sant Gadge Baba Amravati University, Amravati, MS, India.
- Department of Biological Sciences and Biotechnology, Institute of Chemical Technology, Mumbai, India.
- Department of Microbiology, Nicolaus Copernicus University, Torun, Poland.
| | - Tatiana M Minkina
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don, Russia
| | - Pramod U Ingle
- Nanobiotechnology Laboratory, Department of Biotechnology, Sant Gadge Baba Amravati University, Amravati, MS, India
| | - Vishnu D Rajput
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don, Russia
| | - Svetlana N Sushkova
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don, Russia
| | - Saglara S Mandzhieva
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don, Russia
| | - Mahendra Rai
- Nanobiotechnology Laboratory, Department of Biotechnology, Sant Gadge Baba Amravati University, Amravati, MS, India
- Department of Chemistry, Federal University of Piaui (UFPI), Teresina, Brazil
| | - Ming H Wong
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don, Russia
- Consortium On Health, Environment, Education, and Research (CHEER), and Department of Science and Environmental Studies, The Education University of Hong Kong, Tai Po, Hong Kong, China
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22
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Ghorai S, Shand H, Patra S, Panda K, Santiago MJ, Rahman MS, Chinnapaiyan S, Unwalla HJ. Nanomedicine for the Treatment of Viral Diseases: Smaller Solution to Bigger Problems. Pharmaceutics 2024; 16:407. [PMID: 38543301 PMCID: PMC10975899 DOI: 10.3390/pharmaceutics16030407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Accepted: 03/14/2024] [Indexed: 04/01/2024] Open
Abstract
The continuous evolution of new viruses poses a danger to world health. Rampant outbreaks may advance to pandemic level, often straining financial and medical resources to breaking point. While vaccination remains the gold standard to prevent viral illnesses, these are mostly prophylactic and offer minimal assistance to those who have already developed viral illnesses. Moreover, the timeline to vaccine development and testing can be extensive, leading to a lapse in controlling the spread of viral infection during pandemics. Antiviral therapeutics can provide a temporary fix to tide over the time lag when vaccines are not available during the commencement of a disease outburst. At times, these medications can have negative side effects that outweigh the benefits, and they are not always effective against newly emerging virus strains. Several limitations with conventional antiviral therapies may be addressed by nanotechnology. By using nano delivery vehicles, for instance, the pharmacokinetic profile of antiviral medications can be significantly improved while decreasing systemic toxicity. The virucidal or virus-neutralizing qualities of other special nanomaterials can be exploited. This review focuses on the recent advancements in nanomedicine against RNA viruses, including nano-vaccines and nano-herbal therapeutics.
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Affiliation(s)
- Suvankar Ghorai
- Department of Cellular and Molecular Medicine, Herbert Wertheim College of Medicine, Florida International University, 11200 SW 8th Street, Miami, FL 33199, USA; (S.G.); (K.P.); (M.J.S.); (M.S.R.); (S.C.)
- Department of Microbiology, Raiganj University, Raiganj 733134, India; (H.S.); (S.P.)
| | - Harshita Shand
- Department of Microbiology, Raiganj University, Raiganj 733134, India; (H.S.); (S.P.)
| | - Soumendu Patra
- Department of Microbiology, Raiganj University, Raiganj 733134, India; (H.S.); (S.P.)
| | - Kingshuk Panda
- Department of Cellular and Molecular Medicine, Herbert Wertheim College of Medicine, Florida International University, 11200 SW 8th Street, Miami, FL 33199, USA; (S.G.); (K.P.); (M.J.S.); (M.S.R.); (S.C.)
| | - Maria J. Santiago
- Department of Cellular and Molecular Medicine, Herbert Wertheim College of Medicine, Florida International University, 11200 SW 8th Street, Miami, FL 33199, USA; (S.G.); (K.P.); (M.J.S.); (M.S.R.); (S.C.)
- Department of Chemistry and Biochemistry, Florida International University, 11200 SW 8th Street, Miami, FL 33199, USA
| | - Md. Sohanur Rahman
- Department of Cellular and Molecular Medicine, Herbert Wertheim College of Medicine, Florida International University, 11200 SW 8th Street, Miami, FL 33199, USA; (S.G.); (K.P.); (M.J.S.); (M.S.R.); (S.C.)
| | - Srinivasan Chinnapaiyan
- Department of Cellular and Molecular Medicine, Herbert Wertheim College of Medicine, Florida International University, 11200 SW 8th Street, Miami, FL 33199, USA; (S.G.); (K.P.); (M.J.S.); (M.S.R.); (S.C.)
| | - Hoshang J. Unwalla
- Department of Cellular and Molecular Medicine, Herbert Wertheim College of Medicine, Florida International University, 11200 SW 8th Street, Miami, FL 33199, USA; (S.G.); (K.P.); (M.J.S.); (M.S.R.); (S.C.)
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23
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Kirschner H, John M, Zhou T, Bachmann N, Schultz A, Hofmann E, Bandow JE, Scherkenbeck J, Metzler-Nolte N, Stoll R. Structural Insights into Antibacterial Payload Release from Gold Nanoparticles Bound to E. coli Peptide Deformylase. ChemMedChem 2024; 19:e202300538. [PMID: 38057137 DOI: 10.1002/cmdc.202300538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 11/10/2023] [Indexed: 12/08/2023]
Abstract
The lack of new antibiotics and the rapidly rising number of pathogens resistant to antibiotics pose a serious problem to mankind. In bacteria, the cell membrane provides the first line of defence to antibiotics by preventing them from reaching their molecular target. To overcome this entrance barrier, it has been suggested[1] that small Gold-Nanoparticles (AuNP) could possibly function as drug delivery systems for antibiotic ligands. Using actinonin-based ligands, we provide here proof-of-principle of AuNP functionalisation, the capability to bind and inhibit the target protein of the ligand, and the possibility to selectively release the antimicrobial payload. To this end, we successfully synthesised AuNP coated with thio-functionalised actinonin and a derivative. Interactions between 15N-enriched His-peptide deformylase 1-147 from E. coli (His-ecPDF 1-147) and compound-coated AuNP were investigated via 2D 1H-15N-HSQC NMR spectra proving the direct binding to His-ecPDF 1-147. More importantly by adding dithiothreitol (DTT), we show that the derivative is successfully released from AuNPs while still bound to His-ecPDF 1-147. Our findings indicate that AuNP-conjugated ligands can address and bind intracellular target proteins. The system introduced here presents a new delivery platform for antibiotics and allows for the easy optimisation of ligand coated AuNPs.
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Affiliation(s)
- Hendrik Kirschner
- Biochemistry II, Biomolecular NMR Spectroscopy, RUBiospec|NMR and PhenomeCentre@RUBUAR, Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitätsstraße 150, 44801, Bochum, Germany
| | - Milena John
- Inorganic Chemistry I - Bioinorganic Chemistry, Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitätsstraße 150, 44801, Bochum, Germany
| | - Tianyi Zhou
- Bioorganic Chemistry, Faculty of Mathematics and Natural Sciences, University of Wuppertal, Gaußstraße 20, 42119, Wuppertal, Germany
| | - Nathalie Bachmann
- Applied Microbiology, Faculty of Biology and Biotechnology, Ruhr University Bochum, Universitätsstraße 150, 44801, Bochum, Germany
| | - André Schultz
- Applied Microbiology, Faculty of Biology and Biotechnology, Ruhr University Bochum, Universitätsstraße 150, 44801, Bochum, Germany
| | - Eckhard Hofmann
- Protein Crystallography, Faculty of Biology and Biotechnology, Ruhr University Bochum, Universitätsstraße 150, 44801, Bochum, Germany
| | - Julia Elisabeth Bandow
- Applied Microbiology, Faculty of Biology and Biotechnology, Ruhr University Bochum, Universitätsstraße 150, 44801, Bochum, Germany
| | - Jürgen Scherkenbeck
- Bioorganic Chemistry, Faculty of Mathematics and Natural Sciences, University of Wuppertal, Gaußstraße 20, 42119, Wuppertal, Germany
| | - Nils Metzler-Nolte
- Inorganic Chemistry I - Bioinorganic Chemistry, Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitätsstraße 150, 44801, Bochum, Germany
| | - Raphael Stoll
- Biochemistry II, Biomolecular NMR Spectroscopy, RUBiospec|NMR and PhenomeCentre@RUBUAR, Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitätsstraße 150, 44801, Bochum, Germany
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24
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Rajendran K, Ahmed U, Meunier AC, Shaikh MF, Siddiqui R, Anwar A. Nanoparticle-Terpene Fusion: A Game-Changer in Combating Primary Amoebic Meningoencephalitis Caused by Naegleria fowleri. ACS OMEGA 2024; 9:11597-11607. [PMID: 38497026 PMCID: PMC10938409 DOI: 10.1021/acsomega.3c08844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 12/17/2023] [Accepted: 12/22/2023] [Indexed: 03/19/2024]
Abstract
Pathogenic Naegleria fowleri (N. fowleri) are opportunistic free-living amoebae and are the causative agents of a very rare but severe brain infection called primary amoebic meningoencephalitis (PAM). The fatality rate of PAM in reported cases is more than 95%. Most of the drugs used againstN. fowleri infections are repurposed drugs. Therefore, a large number of compounds have been tested againstN. fowleri in vitro, but most of the tested compounds showed high toxicity and an inability to cross the blood-brain barrier. Andrographolide, forskolin, and borneol are important natural compounds that have shown various valuable biological properties. In the present study, the nanoconjugates (AND-AgNPs, BOR-AgNPs, and FOR-AgNPs) of these compounds were synthesized and assessed against both stages (trophozoite and cyst) ofN. fowleri for their antiamoebic and cysticidal potential in vitro. In addition, cytotoxicity and host cell pathogenicity were also evaluated in vitro. FOR-AgNPs were the most potent nanoconjugate and showed potent antiamoebic activity againstN. fowleriwith an IC50 of 26.35 μM. Nanoconjugates FOR-AgNPs, BOR-AgNPs, and AND-AgNPs also significantly inhibit the viability of N. fowleri cysts. Cytotoxicity assessment showed that these nanoconjugates caused minimum damage to human keratinocyte cells (HaCaT cells) at 100 μg/mL, while also effectively reducing the cytopathogenicity of N. fowleri trophozoites to the HaCaT cells. The outcomes of our experiments have unveiled substantial potential for AND-AgNPs, BOR-AgNPs, and FOR-AgNPs in the realm of developing innovative alternative therapeutic agents to combat infections caused by N. fowleri. This study represents a significant step forward in the pursuit of advanced strategies for managing such amoebic infections, laying the foundation for the development of novel and more effective therapeutic modalities in the fight against free-living amoebae.
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Affiliation(s)
- Kavitha Rajendran
- School
of American Education, Sunway University, Subang Jaya 47500, Selangor, Malaysia
| | - Usman Ahmed
- Department
of Biological Sciences, School of Medical and Life Sciences, Sunway University, Subang Jaya 47500, Selangor, Malaysia
| | - Alexia Chloe Meunier
- Department
of Biological Sciences, School of Medical and Life Sciences, Sunway University, Subang Jaya 47500, Selangor, Malaysia
| | - Mohd Farooq Shaikh
- Neuropharmacology
Research Laboratory, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway 47500, Malaysia
- School
of Dentistry and Medical Sciences, Charles
Sturt University, Orange 2800, New South Wales, Australia
| | - Ruqaiyyah Siddiqui
- Department
of Microbiota Research Centre, Istinye University, Istanbul 34010, Turkey
| | - Ayaz Anwar
- Department
of Biological Sciences, School of Medical and Life Sciences, Sunway University, Subang Jaya 47500, Selangor, Malaysia
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25
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Wang Z, Tian Y, Hao J, Liu Y, Tang J, Xu Z, Liu Y, Tang B, Huang X, Zhu N, Li Z, Hu L, Li L, Wang Y, Jiang G. Chiral Nanoclusters as Alternative Therapeutic Strategies to Confront the Health Threat from Antibiotic-Resistant Pathogens. ACS NANO 2024; 18:7253-7266. [PMID: 38380803 DOI: 10.1021/acsnano.3c13044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/22/2024]
Abstract
Pseudomonas aeruginosa (P. aeruginosa), a drug-resistant Gram-negative pathogen, is listed among the "critical" group of pathogens by the World Health Organization urgently needing efficacious antibiotics in the clinics. Nanomaterials especially silver nanoparticles (AgNPs) due to the broad-spectrum antimicrobial activity are tested in antimicrobial therapeutic applications. Pathogens rapidly develop resistance to AgNPs; however, the health threat from antibiotic-resistant pathogens remains challenging. Here we present a strategy to prevent bacterial resistance to silver nanomaterials through imparting chirality to silver nanoclusters (AgNCs). Nonchiral AgNCs with high efficacy against P. aeruginosa causes heritable resistance, as indicated by a 5.4-fold increase in the minimum inhibitory concentration (MIC) after 9 repeated passages. Whole-genome sequencing identifies a Rhs mutation related to the wall of Gram-negative bacteria that possibly causes morphology changes in resistance compared to susceptible P. aeruginosa. Nevertheless, AgNCs with laevorotary chirality (l-AgNCs) induce negligible resistance even after 40 repeated passages and maintain a superior antibacterial efficiency at the MIC. l-AgNCs also show high cytocompatibility; negligible cytotoxicity to mammalian cells including JB6, H460, HEK293, and RAW264.7 is observed even at 30-fold MIC. l-AgNCs thus are examined as an alternative to levofloxacin in vivo, healing wound infections of P. aeruginosa efficaciously. This work provides a potential opportunity to confront the rising threat of antimicrobial resistance by developing chiral nanoclusters.
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Affiliation(s)
- Zhe Wang
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yijin Tian
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jinghua Hao
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ya Liu
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
| | - Jie Tang
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhenlan Xu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Yin Liu
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
| | - Biao Tang
- School of Life Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
| | - Xiu Huang
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610065, China
| | - Nali Zhu
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
| | - Zhigang Li
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
| | - Ligang Hu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Lingxiangyu Li
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
| | - Yawei Wang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Guibin Jiang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
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26
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Ni W, Zhou G, Chen Y, Li X, Yan T, Li Y. Fabrication of antibacterial poly (L-lactic acid)/tea polyphenol blend films via reactive blending using SG copolymer. Int J Biol Macromol 2024; 262:130130. [PMID: 38354921 DOI: 10.1016/j.ijbiomac.2024.130130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 12/05/2023] [Accepted: 02/10/2024] [Indexed: 02/16/2024]
Abstract
Poly (L-lactic acid) (PLLA) composite materials with both excellent antibacterial properties and mechanical properties are highly desirable for both food packaging and biomedical applications. However, a facile method to prepare transparent PLLA composite films with both excellent antibacterial and mechanical properties is still lacking. In this work, blend films based on PLLA, tea polyphenols (TP) and poly (styrene-co-glycidyl methacrylate) (SG) copolymers (PLLA/TP/SG) were prepared by melt blending using twin screw extruder. The blend films showed high transparency with a brownish color originated from tea polyphenols. Both SEM and DSC analyses confirmed that the blends are thermodynamically compatible. GPC and mechanical assessments demonstrated that the PLLA/TP binary blends exhibit reduced molecular weight and compromised mechanical properties, compared to neat PLLA. However, incorporating SG copolymer resulted in increased molecular weight and improved mechanical properties for the PLLA/TP/SG blends. The FT-IR spectra exhibited a shift to lower wavenumber for the absorption peak associated with the benzene ring on TPs after blending with PLLA and SG, indicating the occurrence of transesterification between PLLA and TP. Plate coating studies revealed that the PLLA/TP/SG blends with TP incorporation at 5 wt% exhibited a bacteriostatic rate of 99.99 % against Staphylococcus aureus and Escherichia coli. Overall, our study reveals that the PLLA/TP/SG blend films exhibit excellent antibacterial properties coupled with good mechanical properties, rendering them a promising candidate for antibacterial packaging materials.
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Affiliation(s)
- Weibiao Ni
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, 310053, Zhejiang, People's Republic of China
| | - Guoying Zhou
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou, 310053, Zhejiang, People's Republic of China
| | - Yihang Chen
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, 310053, Zhejiang, People's Republic of China
| | - Xianlu Li
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, 310053, Zhejiang, People's Republic of China
| | - Tingzi Yan
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, 310053, Zhejiang, People's Republic of China.
| | - Yongjin Li
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, 310053, Zhejiang, People's Republic of China.
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27
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Li W, Su H, Ma Y, Ren H, Feng Z, Wang Y, Qiu Y, Wang H, Wang H, Chen Q, Zhu Z. Multicargo-loaded inverse opal gelatin hydrogel microparticles for promoting bacteria-infected wound healing. Int J Biol Macromol 2024; 260:129557. [PMID: 38242411 DOI: 10.1016/j.ijbiomac.2024.129557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 12/05/2023] [Accepted: 01/15/2024] [Indexed: 01/21/2024]
Abstract
Nowadays, many strategies have been developed to design biomaterials to accelerate bacteria-infected wound healing. Here, we presented a new type of multicargo-loaded inverse opal hydrogel microparticle (IOHM) for regulating oxidative stress, antibiosis, and angiogenesis of the bacteria-infected wound. The methacrylate acylated gelatin (GelMA)-based inverse opal hydrogel microparticles (IOHMs) were obtained by using the colloidal crystal microparticles as templates, and fullerol, silver nanoparticles (Ag NPs), and vascular endothelial growth factor (VEGF) were loaded in IOHMs. The developed multicargo-loaded IOHMs displayed good size distribution and biocompatibility, and when they were applied in cell culture, bacteria culture, and animal experiments, they exhibited excellent anti-oxidative stress properties, antibacterial properties, and angiogenesis. These characteristics of the developed multicargo-loaded IOHMs make them ideal for bacteria-infected wound healing.
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Affiliation(s)
- Wenhan Li
- Division of Spine Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing 210008, China
| | - Haiwen Su
- Department of Nephrology, Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing 210008, China
| | - Yanyu Ma
- Division of Spine Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Haoyu Ren
- The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen 518033, China
| | - Zhenhua Feng
- Division of Spine Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Yu Wang
- Division of Spine Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Yong Qiu
- Division of Spine Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Hengjin Wang
- Department of Nephrology, Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing 210008, China
| | - Huan Wang
- The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen 518033, China.
| | - Quanchi Chen
- Division of Spine Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China.
| | - Zezhang Zhu
- Division of Spine Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing 210008, China; Division of Spine Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China.
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Marinas IC, Ignat L, Maurușa IE, Gaboreanu MD, Adina C, Popa M, Chifiriuc MC, Angheloiu M, Georgescu M, Iacobescu A, Pircalabioru GG, Stan M, Pinteala M. Insights into the physico-chemical and biological characterization of sodium lignosulfonate - silver nanosystems designed for wound management. Heliyon 2024; 10:e26047. [PMID: 38384565 PMCID: PMC10878957 DOI: 10.1016/j.heliyon.2024.e26047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Revised: 02/06/2024] [Accepted: 02/07/2024] [Indexed: 02/23/2024] Open
Abstract
Chronic wounds represent one of the complications that might occur from the disruption of wound healing process. Recently, there has been a rise in interest in employing nanotechnology to develop novel strategies for accelerating wound healing. The aim of the present study was to use a green synthesis method to obtain AgNPs/NaLS systems useful for wounds management and perform an in-depth investigation of their behavior during and post-synthesis as well as of their biological properties. The colloids obtained from silver nanoparticles (AgNPs) and commercial sodium lignosulfonate (NaLS) in a single-pot aqueous procedure have been fully characterized by UV-Vis, FT-IR, DLS, TEM, XRD, and XPS to evaluate the synthesis efficiency and to provide new insights in the process of AgNPs formation and NaLS behavior in aqueous solutions. The effects of various concentrations of NaLS (0-16 mg/mL) and AgNO3 (0-20 mM) and of two different temperatures on AgNPs formation have been analyzed. Although the room temperature is feasible for AgNPs synthesis, the short mixing at 70 °C significantly increases the speed of nanoparticle formation and storage stability. In all experimental conditions AgNPs of 20-40 nm in size have been obtained. The antimicrobial activity assessed quantitatively on clinical and reference bacterial strains, both in suspension and biofilm growth state, revealed a broad antimicrobial spectrum, the most intensive inhibitory effect being noticed against Pseudomonas aeruginosa and Escherichia coli strains. The AgNP/NaLS enhanced the NO extracellular release, potentially contributing to the microbicidal and anti-adherence activity by protein oxidation. Both AgNP/NaLS and NaLS were non-hemolytic (hemolytic index<5%, 2.26 ± 0.13% hemolysis) and biocompatible (102.17 ± 3.43 % HaCaT cells viability). The presence of AgNPs increased the antioxidative activity and induced a significant cytotoxicity on non-melanoma skin cancer cells (62.86 ± 8.27% Cal-27 cells viability). Taken together, all these features suggest the multivalent potential of these colloids for the development of novel strategies for wound management, acting by preventing infection-associated complications and supporting the tissue regeneration.
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Affiliation(s)
- Ioana C. Marinas
- Research Institute of the University of Bucharest—ICUB, University of Bucharest, 050095, Bucharest, Romania
- Research and Development Department of SC Sanimed International Impex SRL, 6 Bucharest -Giurgiu Street, 087040, Giurgiu, Romania
| | - Leonard Ignat
- Centre of Advanced Research in Bionanoconjugates and Biopolymers, “Petru Poni” Institute of Macromolecular Chemistry, Gr. Ghica Voda Alley 41A, Iasi, 700487, Romania
| | - Ignat E. Maurușa
- Centre of Advanced Research in Bionanoconjugates and Biopolymers, “Petru Poni” Institute of Macromolecular Chemistry, Gr. Ghica Voda Alley 41A, Iasi, 700487, Romania
| | - Madalina D. Gaboreanu
- Research Institute of the University of Bucharest—ICUB, University of Bucharest, 050095, Bucharest, Romania
- Faculty of Biology, Department of Botany and Microbiology, University of Bucharest, 1-3 Portocalelor Street, 060101, Bucharest, Romania
| | - Coroabă Adina
- Centre of Advanced Research in Bionanoconjugates and Biopolymers, “Petru Poni” Institute of Macromolecular Chemistry, Gr. Ghica Voda Alley 41A, Iasi, 700487, Romania
| | - Marcela Popa
- Research Institute of the University of Bucharest—ICUB, University of Bucharest, 050095, Bucharest, Romania
- Faculty of Biology, Department of Botany and Microbiology, University of Bucharest, 1-3 Portocalelor Street, 060101, Bucharest, Romania
| | - Mariana C. Chifiriuc
- Research Institute of the University of Bucharest—ICUB, University of Bucharest, 050095, Bucharest, Romania
- Faculty of Biology, Department of Botany and Microbiology, University of Bucharest, 1-3 Portocalelor Street, 060101, Bucharest, Romania
- Romanian Academy of Scientists, 54 Spl. Independentei St., District 5, 50085, Bucharest, Romania
- The Romanian Academy, 25, Calea Victoriei, Sector 1, District 1, 010071, Bucharest, Romania
| | - Marian Angheloiu
- Research and Development Department of SC Sanimed International Impex SRL, 6 Bucharest -Giurgiu Street, 087040, Giurgiu, Romania
| | - Mihaela Georgescu
- Research Institute of the University of Bucharest—ICUB, University of Bucharest, 050095, Bucharest, Romania
| | - Alexandra Iacobescu
- Centre of Advanced Research in Bionanoconjugates and Biopolymers, “Petru Poni” Institute of Macromolecular Chemistry, Gr. Ghica Voda Alley 41A, Iasi, 700487, Romania
| | - Gratiela Gradisteanu Pircalabioru
- Research Institute of the University of Bucharest—ICUB, University of Bucharest, 050095, Bucharest, Romania
- Faculty of Biology, Department of Botany and Microbiology, University of Bucharest, 1-3 Portocalelor Street, 060101, Bucharest, Romania
| | - Miruna Stan
- Research Institute of the University of Bucharest—ICUB, University of Bucharest, 050095, Bucharest, Romania
- Faculty of Biology, Department of Biochemistry and Molecular Biology, University of Bucharest, 91-95 Splaiul Independentei, 050095, Bucharest, Romania
| | - Mariana Pinteala
- Centre of Advanced Research in Bionanoconjugates and Biopolymers, “Petru Poni” Institute of Macromolecular Chemistry, Gr. Ghica Voda Alley 41A, Iasi, 700487, Romania
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Pandey P, Pradhan S, Meher K, Lopus M, Vavilala SL. Exploring the efficacy of tryptone-stabilized silver nanoparticles against respiratory tract infection-causing bacteria: a study on planktonic and biofilm forms. Biomed Mater 2024; 19:025047. [PMID: 38364289 DOI: 10.1088/1748-605x/ad2a40] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 02/16/2024] [Indexed: 02/18/2024]
Abstract
Respiratory tract infections (RTIs) are a common cause of mortality and morbidity in the human population. The overuse of antibiotics to overcome such infections has led to antibiotic resistance. The emergence of multidrug resistant bacteria is necessitating the development of novel therapeutic techniques in order to avoid a major global clinical threat. Our study aims to investigate the potential of tryptone stabilised silver nanoparticles (Ts-AgNPs) on planktonic and biofilms produced byKlebsiella pneumoniae(K. pneumoniae)and Pseudomonas aeruginosa(P. aeruginosa). The MIC50of Ts-AgNPs was found to be as low as 1.7 μg ml-1and 2.7 μg ml-1forK. pneumoniae and P.aeruginosarespectively. Ts-AgNPs ability to alter redox environment by producing intracellular ROS, time-kill curves showing substantial decrease in the bacterial growth and significantly reduced colony forming units further validate its antimicrobial effect. The biofilm inhibition and eradication ability of Ts-AgNPs was found to be as high as 93% and 97% in both the tested organisms. A significant decrease in the eDNA and EPS quantity in Ts-AgNPs treated cells proved its ability to successfully distort the matrix and matured biofilms. Interestingly Ts-AgNPs also attenuated QS-induced virulence factors production. This study paves way to develop Ts-AgNPs as novel antibiotics against RTIs causing bacterial biofilms.
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Affiliation(s)
- Pooja Pandey
- School of Biological Sciences, UM-DAE Centre for Excellence in Basic Sciences, University of Mumbai, Vidyanagari, Kalina Campus, Mumbai 400098, India
| | - Sristi Pradhan
- School of Biological Sciences, UM-DAE Centre for Excellence in Basic Sciences, University of Mumbai, Vidyanagari, Kalina Campus, Mumbai 400098, India
| | - Kimaya Meher
- School of Biological Sciences, UM-DAE Centre for Excellence in Basic Sciences, University of Mumbai, Vidyanagari, Kalina Campus, Mumbai 400098, India
| | - Manu Lopus
- School of Biological Sciences, UM-DAE Centre for Excellence in Basic Sciences, University of Mumbai, Vidyanagari, Kalina Campus, Mumbai 400098, India
| | - Sirisha L Vavilala
- School of Biological Sciences, UM-DAE Centre for Excellence in Basic Sciences, University of Mumbai, Vidyanagari, Kalina Campus, Mumbai 400098, India
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30
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Xu J, Xia W, Sheng G, Jiao G, Liu Z, Wang Y, Zhang X. Progress of disinfection catalysts in advanced oxidation processes, mechanisms and synergistic antibiotic degradation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 913:169580. [PMID: 38154648 DOI: 10.1016/j.scitotenv.2023.169580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 12/18/2023] [Accepted: 12/19/2023] [Indexed: 12/30/2023]
Abstract
Human diseases caused by pathogenic microorganisms make people pay more attention to disinfection. Meanwhile, antibiotics can cause microbial resistance and increase the difficulty of disease treatment, resulting in risk of triggering a vicious circle. Advanced oxidation process (AOPs) has been widely studied in the field of synergistic treatment of the two contaminates. This paper reviews the application of catalytic materials and their modification strategies in the context of AOPs for disinfection and antibiotic degradation. It also delves into the mechanisms of disinfection such as the pathways for microbial inactivation and the related influencing factors, which are essential for understanding the pivotal role of catalytic materials in disinfection principles by AOPs. More importantly, the exploratory research on the combined use of AOPs for disinfection and antibiotic degradation is discussed, and the potential and prospects in this field is highlighted. Finally, the limitations and challenges associated with the application of AOPs in disinfection and antibiotic degradation are summarized. It aims to provide a starting point for future research efforts to facilitate the widespread use of advanced oxidation processes in the field of public health.
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Affiliation(s)
- Jin Xu
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Wannan Xia
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Guo Sheng
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Guanhao Jiao
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Zhenhao Liu
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Yin Wang
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China.
| | - Xiaodong Zhang
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China
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31
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Sanders BR, Miller JE, Ahmidouch N, Graves JL, Thomas MD. Genotype-by-environment interactions govern fitness changes associated with adaptive mutations in two-component response systems. Front Genet 2024; 15:1349507. [PMID: 38463171 PMCID: PMC10920338 DOI: 10.3389/fgene.2024.1349507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 02/02/2024] [Indexed: 03/12/2024] Open
Abstract
Introduction: Two-component response systems (TCRS) are the main mechanism by which prokaryotes acclimate to changing environments. These systems are composed of a membrane bound histidine kinase (HK) that senses external signals and a response regulator (RR) that activates transcription of response genes. Despite their known role in acclimation, little is known about the role TCRS play in environmental adaptation. Several experimental evolution studies have shown the acquisition of mutations in TCRS during adaptation, therefore here we set out to characterize the adaptive mechanism resulting from these mutations and evaluate whether single nucleotide changes in one gene could induce variable genotype-by-environment (GxE) interactions. Methods: To do this, we assessed fitness changes and differential gene expression for four adaptive mutations in cusS, the gene that encodes the HK CusS, acquired by Escherichia coli during silver adaptation. Results: Fitness assays showed that as the environment changed, each mutant displayed a unique fitness profile with greatest fitness in the original selection environment. RNAseq then indicated that, in ± silver nitrate, each mutant induces a primary response that upregulates cusS, its RR cusR, and constitutively expresses the target response genes cusCFBA. This then induces a secondary response via differential expression of genes regulated by the CusR through TCRS crosstalk. Finally, each mutant undergoes fitness tuning through unique tertiary responses that result in gene expression patterns specific for the genotype, the environment and optimized for the original selection conditions. Discussion: This three-step response shows that different mutations in a single gene leads to individualized phenotypes governed by unique GxE interactions that not only contribute to transcriptional divergence but also to phenotypic plasticity.
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Affiliation(s)
| | | | | | | | - Misty D. Thomas
- Department of Biology, North Carolina Agricultural and Technical State University, Greensboro, NC, United States
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32
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Siddiqa A, Qureshi R, Raja NI, Khan IA, Ahmad MZ, Rafique S, Ali A, Ahmad A, Kaushik P. Liver-boosting potential: chicory compound-mediated silver nanoparticles for hepatoprotection-biochemical and histopathological insights. Front Pharmacol 2024; 15:1325359. [PMID: 38449804 PMCID: PMC10914973 DOI: 10.3389/fphar.2024.1325359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Accepted: 01/23/2024] [Indexed: 03/08/2024] Open
Abstract
Background: Liver disease is a serious health concern in today's world, posing a challenge to both healthcare providers and pharmaceutical companies. Most synthetic drugs and chemicals cause liver damage accounting for approximately 10% of acute hepatitis and 50% of acute liver failure. Purpose: The present study aimed to evaluate the hepato-protective activity of an extract of chicory formulation assisted by silver nanoparticles against carbon tetra chloride (CCl4)-induced hepatic damage in rat's liver. Methods: Rats of the Wistar strain (Rattus norvegicus) were used to test the in vivo hepato-protective efficacy at various doses. Rats were randomly divided into nine groups, each containing six rats. The groups were as follows: first group (control), second group (CCl4), third group, silymarin (20 mg/kg of body weight), fourth group (CCl4+chicory) (1.75 mg/kg of b. wt), fifth group (CCl4 + chicory at the dose of 2.35 mg/kg), sixth group (CCl4 + chicory of 3.25 mg/kg), seventh group (CCl4 +AgNPs 1.75 mg/kg of b. wt.), eighth group (CCl4 + AgNPs 2.35 mg/kg of body weight), and ninth group (CCl4 + AgNPs 3.25 mg/kg of b. wt.). Blood samples were taken 24 h after the last administration (i.e., 30th day). The blood samples were analyzed for different serum enzymes such as ALP (alkaline phosphatase), ALT (alanine transaminase), bilirubin (Blr), triglyceride, and cholesterol. Histology liver sections were performed. Results: Treatment with AgNPs and chicory extract showed significant hepato-protective activity in a dose-dependent manner. In three doses, the chicory extract at a rate of 3.25 mg/kg of body weight significantly reduced elevated levels of biochemical markers in comparison to CCl4-intoxicated rats. Histology of the liver sections from CCl4-treated rats revealed inflammation of hepatocytes, necrosis, cytoplasmic degeneration, vacuolization, and a deformed central vein. The chicory formulation extract exhibited a remarkable recovery percentage in the liver architecture that was higher than the drug (i.e., silymarin). While treatment with AgNPs also repaired the degenerative changes and restored the normal form of the liver, chicory formulation extract possessed more hepato-protective potential as compared to AgNPs by regulating biochemical and histo-pathological parameters. Conclusion: This study can be used as confirmation of the hepato-protective potential of chicory compounds for possible use in the development programs of drugs to treat liver diseases.
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Affiliation(s)
- Ayesha Siddiqa
- Department of Botany, Pir Mehr Ali Shah Arid Agriculture University, Rawalpindi, Pakistan
| | - Rahmatullah Qureshi
- Department of Botany, Pir Mehr Ali Shah Arid Agriculture University, Rawalpindi, Pakistan
| | - Naveed Iqbal Raja
- Department of Botany, Pir Mehr Ali Shah Arid Agriculture University, Rawalpindi, Pakistan
| | - Imtiaz Ahmed Khan
- Department of Veterinary Pathology, Pir Mehr Ali Shah Arid Agriculture University, Rawalpindi, Pakistan
| | - Muhammad Zishan Ahmad
- Department of Veterinary Pathology, Pir Mehr Ali Shah Arid Agriculture University, Rawalpindi, Pakistan
| | - Shaista Rafique
- Department of Botany, Pir Mehr Ali Shah Arid Agriculture University, Rawalpindi, Pakistan
| | - Amir Ali
- Department of Botany, Pir Mehr Ali Shah Arid Agriculture University, Rawalpindi, Pakistan
| | - Ajaz Ahmad
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Prashant Kaushik
- Department of Vegetable Science, Chaudhary Charan Singh Haryana Agricultural University, Hisar, India
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33
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Vital VG, Silva MR, Santos VT, Lobo FG, Xander P, Zauli RC, Moraes CB, Freitas-Junior LH, Barbosa CG, Pellosi DS, Silva RAG, Paganotti A, Vasconcellos SP. Micro-Addition of Silver to Copper: One Small Step in Composition, a Change for a Giant Leap in Biocidal Activity. MATERIALS (BASEL, SWITZERLAND) 2024; 17:917. [PMID: 38399167 PMCID: PMC10890504 DOI: 10.3390/ma17040917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 02/01/2024] [Accepted: 02/08/2024] [Indexed: 02/25/2024]
Abstract
The use of copper as an antimicrobial agent has a long history and has gained renewed interest in the context of the COVID-19 pandemic. In this study, the authors investigated the antimicrobial properties of an alloy composed of copper with a small percentage of silver (Cu-0.03% wt.Ag). The alloy was tested against various pathogens, including Escherichia coli, Staphylococcus aureus, Candida albicans, Pseudomonas aeruginosa, and the H1N1 virus, using contact exposure tests. Results showed that the alloy was capable of inactivating these pathogens in two hours or less, indicating its strong antimicrobial activity. Electrochemical measurements were also performed, revealing that the small addition of silver to copper promoted a higher resistance to corrosion and shifted the formation of copper ions to higher potentials. This shift led to a slow but continuous release of Cu2+ ions, which have high biocidal activity. These findings show that the addition of small amounts of silver to copper can enhance its biocidal properties and improve its effectiveness as an antimicrobial material.
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Affiliation(s)
- Vitor G. Vital
- Instituto de Ciências Ambientais, Químicas e Farmacêuticas—ICAQF, Universidade Federal de São Paulo—UNIFESP, Diadema 09913-030, Brazil (P.X.); (R.C.Z.)
| | - Márcio R. Silva
- Department of Research and Development, Termomecanica São Paulo S.A., São Bernardo do Campo 09612-000, Brazil
| | - Vinicius T. Santos
- Department of Research and Development, Termomecanica São Paulo S.A., São Bernardo do Campo 09612-000, Brazil
| | - Flávia G. Lobo
- Department of Research and Development, Termomecanica São Paulo S.A., São Bernardo do Campo 09612-000, Brazil
| | - Patrícia Xander
- Instituto de Ciências Ambientais, Químicas e Farmacêuticas—ICAQF, Universidade Federal de São Paulo—UNIFESP, Diadema 09913-030, Brazil (P.X.); (R.C.Z.)
| | - Rogéria C. Zauli
- Instituto de Ciências Ambientais, Químicas e Farmacêuticas—ICAQF, Universidade Federal de São Paulo—UNIFESP, Diadema 09913-030, Brazil (P.X.); (R.C.Z.)
| | - Carolina B. Moraes
- Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, São Paulo 05508-000, Brazil
- Departamento de Microbiologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo 05508-900, Brazil
| | - Lucio H. Freitas-Junior
- Departamento de Microbiologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo 05508-900, Brazil
| | - Cecíla G. Barbosa
- Departamento de Microbiologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo 05508-900, Brazil
| | - Diogo S. Pellosi
- Instituto de Química, Universidade Federal do Paraná, Curitiba 81531-980, Brazil
| | - Ricardo A. G. Silva
- Instituto de Ciências Ambientais, Químicas e Farmacêuticas—ICAQF, Universidade Federal de São Paulo—UNIFESP, Diadema 09913-030, Brazil (P.X.); (R.C.Z.)
| | - André Paganotti
- Instituto de Ciências Ambientais, Químicas e Farmacêuticas—ICAQF, Universidade Federal de São Paulo—UNIFESP, Diadema 09913-030, Brazil (P.X.); (R.C.Z.)
| | - Suzan P. Vasconcellos
- Instituto de Ciências Ambientais, Químicas e Farmacêuticas—ICAQF, Universidade Federal de São Paulo—UNIFESP, Diadema 09913-030, Brazil (P.X.); (R.C.Z.)
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Shahbaz M, Seelan JSS, Abasi F, Fatima N, Mehak A, Raza MU, Raja NI, Proćków J. Nanotechnology for controlling mango malformation: a promising approach. J Biomol Struct Dyn 2024:1-21. [PMID: 38344816 DOI: 10.1080/07391102.2024.2312449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Accepted: 10/30/2023] [Indexed: 04/05/2024]
Abstract
Mango (Mangifera indica L.) is one of the most important fruit crops in the world with yields of approximately 40 million tons annually and its production continues to decrease every year as a result of the attack of certain pathogens i.e. Colletotrichum gloeosporioides, Erythricium salmonicolor, Amritodus atkinsoni, Idioscopus clypealis, Idioscopus nitidulus, Bactrocera obliqua, Bactrocera frauenfeldi, Xanthomonas campestris, and Fusarium mangiferae. So F. mangiferae is the most harmful pathogen that causes mango malformation disease in mango which decreases its 90% yield. Nanotechnology is an eco-friendly and has a promising effect over traditional methods to cure fungal diseases. Different nanoparticles possess antifungal potential in terms of controlling the fungal diseases in plants but applications of nanotechnology in plant disease managements is minimal. The main focus of this review is to highlight the previous and current strategies to control mango malformation and highlights the promising applications of nanomaterials in combating mango malformation. Hence, the present review aims to provide brief information on the disease and effective management strategies.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Muhammad Shahbaz
- Institute for Tropical Biology and Conservation (ITBC), Universiti Malaysia Sabah, Jalan UMS, Kota Kinabalu, Sabah, Malaysia
| | - Jaya Seelan Sathiya Seelan
- Institute for Tropical Biology and Conservation (ITBC), Universiti Malaysia Sabah, Jalan UMS, Kota Kinabalu, Sabah, Malaysia
| | - Fozia Abasi
- Department of Botany, P MAS-Arid Agriculture University, Rawalpindi, Pakistan
| | - Noor Fatima
- Department of Botany, Lahore College for Women University, Lahore, Pakistan
| | - Asma Mehak
- Department of Botany, P MAS-Arid Agriculture University, Rawalpindi, Pakistan
| | - Muhammad Umair Raza
- Department of Botany, P MAS-Arid Agriculture University, Rawalpindi, Pakistan
| | - Naveed Iqbal Raja
- Department of Botany, P MAS-Arid Agriculture University, Rawalpindi, Pakistan
| | - Jarosław Proćków
- Department of Plant Biology, Institute of Environmental Biology, Wrocław University of Environmental and Life Sciences, Wrocław, Poland
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35
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Ni YR, Pillay MN, Chiu TH, Rajaram J, Wu YY, Kahlal S, Saillard JY, Liu CW. Diselenophosphate Ligands as a Surface Engineering Tool in PdH-Doped Silver Superatomic Nanoclusters. Inorg Chem 2024; 63:2766-2775. [PMID: 38253002 PMCID: PMC10848256 DOI: 10.1021/acs.inorgchem.3c04253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 01/08/2024] [Accepted: 01/11/2024] [Indexed: 01/24/2024]
Abstract
The first hydride-doped Pd/Ag superatoms stabilized by selenolates are reported: [PdHAg19(dsep)12] [dsep = Se2P(OiPr)2] 1 and [PdHAg20(dsep)12]+ 2. 1 was derived from the targeted transformation of [PdHAg19(dtp)12] [dtp = S2P(OiPr)2] by ligand exchange, whereas 2 was obtained from the addition of trifluoroacetic acid to 1, resulting in a symmetric redistribution of the capping silver atoms. The transformations are all achieved while retaining an 8-electron superatomic configuration. VT-NMR attests to the good stability of the NCs in solution, and single-crystal X-ray diffraction reveals the crucial role that the interstitial hydride plays in directing the position of the capping silver atoms. The total structures are reported alongside their electronic and optical properties. 1 and 2 are phosphorescent with a lifetime of 73 and 84 μs at 77 K, respectively. The first antibacterial activity data for superatomic bimetallic Pd/Ag nanoclusters are also reported.
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Affiliation(s)
- Yu-Rong Ni
- Department
of Chemistry, National Dong Hwa University, Hualien 97401 Taiwan, Republic of
China
| | - Michael N. Pillay
- Department
of Chemistry, National Dong Hwa University, Hualien 97401 Taiwan, Republic of
China
| | - Tzu-Hao Chiu
- Department
of Chemistry, National Dong Hwa University, Hualien 97401 Taiwan, Republic of
China
| | - Jagadeesh Rajaram
- Department
of Chemistry, National Dong Hwa University, Hualien 97401 Taiwan, Republic of
China
| | - Ying-Yann Wu
- Department
of Chemistry, National Dong Hwa University, Hualien 97401 Taiwan, Republic of
China
| | - Samia Kahlal
- Univ
Rennes CNRS, ISC-UMR 6226, F-35000 Rennes, France
| | | | - C. W. Liu
- Department
of Chemistry, National Dong Hwa University, Hualien 97401 Taiwan, Republic of
China
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Varghese RM, S AK, Shanmugam R. Cytotoxicity and Characterization of Zinc Oxide and Silver Nanoparticles Synthesized Using Ocimum tenuiflorum and Ocimum gratissimum Herbal Formulation. Cureus 2024; 16:e53481. [PMID: 38440033 PMCID: PMC10910189 DOI: 10.7759/cureus.53481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Accepted: 02/02/2024] [Indexed: 03/06/2024] Open
Abstract
Background Toxicological assessments of nanoparticles are becoming more and more necessary due to the current rapid increase in interest in them for biomedical applications. This study aimed to synthesize and characterize zinc oxide nanoparticles (ZnONPs) and silver nanoparticles (AgNPs) using Ocimum tenuiflorum (black tulsi) and Ocimum gratissimum (African basil) herbal formulation extracts and to evaluate their cytotoxic effects. Methods The synthesis of AgNPs and ZnONPs was monitored using UV-visible spectra analysis at different time intervals. The nanoparticles' morphology and elemental composition were examined via scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX). Furthermore, Fourier-transform infrared spectroscopy (FT-IR) spectra analysis was employed to identify the functional groups within the nanoparticles. The cytotoxic effects of the nanoparticles were evaluated using the brine shrimp lethality assay. Results The UV-visible spectra analysis revealed the successful synthesis of AgNPs and ZnONPs, with maximum absorption peaks observed at 430 nm and 380 nm, respectively. SEM images showed that AgNPs were spherical in shape and tended to agglomerate, while ZnONPs displayed a unique rod-like to short prism shape, and EDX analysis confirmed the presence of both silver and zinc in these nanoparticles, alongside other elements from the herbal extracts. FT-IR analysis indicated the existence of diverse functional groups on the nanoparticles' surfaces. The brine shrimp lethality assay results demonstrated a concentration-dependent cytotoxic effect of the nanoparticles. Conclusion The study successfully synthesized and characterized AgNPs and ZnONPs using Ocimum tenuiflorum and Ocimum gratissimum herbal formulation extracts. The nanoparticles exhibited significant cytotoxic effects, suggesting their potential applications in various fields. Our results highlight the need for a more discrete use of nanoparticles for biomedical applications. Further studies are needed to explore their potential uses and ensure their safe and effective application.
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Affiliation(s)
- Remmiya Mary Varghese
- Orthodontics and Dentofacial Orthopedics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, IND
| | - Aravind Kumar S
- Orthodontics and Dentofacial Orthopedics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, IND
| | - Rajeshkumar Shanmugam
- Nano-Biomedicine Lab, Center for Global Health Research, Saveetha Medical College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, IND
- Pharmacology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, IND
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Zhou S, Peng H, Zhao A, Zhang R, Li T, Yang X, Lin D. Synthesis of bacterial cellulose nanofibers/Ag nanoparticles: Structure, characterization and antibacterial activity. Int J Biol Macromol 2024; 259:129392. [PMID: 38218289 DOI: 10.1016/j.ijbiomac.2024.129392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 12/26/2023] [Accepted: 01/08/2024] [Indexed: 01/15/2024]
Abstract
The aim of this study was to compare the characterization of bacterial cellulose nanofibers/Ag nanoparticles (BCNs/Ag nanoparticles) obtained by three different pretreatment methods of BCNs (no pretreatment, sodium hydroxide activation pretreatment and TEMPO-mediated oxidation pretreatment), which were recoded as N-BCNs/Ag nanoparticles, A-BCNs/Ag nanoparticles and O-BCNs/Ag nanoparticles, respectively. The results of scanning electron microscopy and transmission electron microscopy showed the prepared Ag nanoparticles by three different pretreatment methods were spherical and dispersed on the surface of BCNs, while the Ag nanoparticles in O-BCNs/Ag nanoparticles displayed the smallest diameter with a value of 20.25 nm and showed the most uniform dispersion on the surface of BCNs. The ICP-MS result showed O-BCNs/Ag nanoparticles had the highest content of Ag nanoparticles with a value of 2.98 wt%, followed by A-BCNs/Ag nanoparticles (1.53 wt%) and N-BCNs/Ag nanoparticles (0.84 wt%). The cytotoxicity assessment showed that the prepared BCNs/Ag nanoparticles were relatively safe. Furthermore, the O-BCNs/Ag nanoparticles had the best antioxidant and antibacterial activities as compared with the other two types of BCNs/Ag nanoparticles, where O-BCNs/Ag nanoparticles destroyed the structure of bacterial cell membranes to lead the leakage of intracellular components. This study showed that O-BCNs/Ag nanoparticles as antibacterial agents have great potential in food packaging.
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Affiliation(s)
- Siyu Zhou
- Shaanxi Engineering Laboratory for Food Green Processing and Safety Control, Shaanxi Key Laboratory for Hazard Factors Assessment in Processing and Storage of Agricultural Products, and Xi'an Key Laboratory of Characteristic Fruit Storage and Preservation, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710062, China
| | - Haonan Peng
- Key Laboratory of Applied Surface and Colloid Chemistry (Ministry of Education), School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China
| | - Aiqing Zhao
- Shaanxi Engineering Laboratory for Food Green Processing and Safety Control, Shaanxi Key Laboratory for Hazard Factors Assessment in Processing and Storage of Agricultural Products, and Xi'an Key Laboratory of Characteristic Fruit Storage and Preservation, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710062, China
| | - Runguan Zhang
- Shaanxi Engineering Laboratory for Food Green Processing and Safety Control, Shaanxi Key Laboratory for Hazard Factors Assessment in Processing and Storage of Agricultural Products, and Xi'an Key Laboratory of Characteristic Fruit Storage and Preservation, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710062, China
| | - Ting Li
- Shaanxi Engineering Laboratory for Food Green Processing and Safety Control, Shaanxi Key Laboratory for Hazard Factors Assessment in Processing and Storage of Agricultural Products, and Xi'an Key Laboratory of Characteristic Fruit Storage and Preservation, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710062, China
| | - Xingbin Yang
- Shaanxi Engineering Laboratory for Food Green Processing and Safety Control, Shaanxi Key Laboratory for Hazard Factors Assessment in Processing and Storage of Agricultural Products, and Xi'an Key Laboratory of Characteristic Fruit Storage and Preservation, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710062, China
| | - Dehui Lin
- Shaanxi Engineering Laboratory for Food Green Processing and Safety Control, Shaanxi Key Laboratory for Hazard Factors Assessment in Processing and Storage of Agricultural Products, and Xi'an Key Laboratory of Characteristic Fruit Storage and Preservation, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710062, China.
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Sarkar D, Manna M, Adhikary A, Reja S, Ghosh S, Saha T, Bhandari S, Kumar Das R. Nanometal surface energy transfer (NSET) from biologically active heterocyclic ligands to silver nanoparticles induces enhanced antimicrobial activity against gram-positive bacteria. Colloids Surf B Biointerfaces 2024; 234:113733. [PMID: 38219637 DOI: 10.1016/j.colsurfb.2023.113733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 12/16/2023] [Accepted: 12/26/2023] [Indexed: 01/16/2024]
Abstract
Herein we report the formation of a nanometal surface energy transfer (NSET) pair between a donor biologically active heterocyclic luminescent ligand such as 3-(1,3-Dioxoisoindolin-2-yl)-N, N-dimethylpropan-1-ammonium perchlorate (S4PNL; λem-408 nm) and an acceptor silver nanoparticle (Ag NP; λabs-406 nm). When the S4PNL ligand interacts with Ag NPs, the quenching in their luminescence intensity at 408 nm is noticed, with a Stern-Volmer constant of 0.8 × 104 M-1. The present donor-acceptor pair displays a binding constant of 2.8 × 104 M-1 and binding sites of 1.12. The current work shows the energy transfer from a molecular dipole (S4PNL) to a nanometal surface (Ag NP) and thus follows the nanometal surface energy transfer (NSET) ruler with an energy transfer efficiency of 80.0%, 50% energy transfer efficiency distance (d0) of 4.9 nm, donor-acceptor distance of 3.4 nm. The alteration in the zeta potential value of S4PNL upon interaction with AgNP clearly demonstrates the strong electrostatic interaction between donor and acceptor. Importantly, the current NSET pair shows enhanced antimicrobial activity against gram-positive bacteria such as Bacillus cereus (B. cereus) in comparison to their parent components i.e. S4PNL ligand and Ag NP. The NSET pair shows maximum inhibition against B. cereus (9202.21 ± 463.26 CFU/ml.) at 10% while minimum inhibition is observed at 0.01% of it (39,887.19 ± 242.67 CFU/ml.).
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Affiliation(s)
- Dilip Sarkar
- Department of Chemistry, University of North Bengal, Darjeeling, West Bengal, India
| | - Mihir Manna
- Centre for Nano Technology, Indian Institute of Technology, Guwahati, Assam, India
| | - Amisha Adhikary
- Department of Chemistry, University of North Bengal, Darjeeling, West Bengal, India
| | - Sahin Reja
- Department of Chemistry, University of North Bengal, Darjeeling, West Bengal, India
| | - Supriyo Ghosh
- Department of Chemistry, University of North Bengal, Darjeeling, West Bengal, India
| | - Tilak Saha
- Department of Chemistry, University of North Bengal, Darjeeling, West Bengal, India
| | - Satyapriya Bhandari
- Department of Chemistry, Kandi Raj College (Govt. Aided), Affiliated to University of Kalyani, Kandi, Murshidabad, India.
| | - Rajesh Kumar Das
- Department of Chemistry, University of North Bengal, Darjeeling, West Bengal, India.
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Ferreyra Maillard APV, Bordón A, Cutro AC, Dalmasso PR, Hollmann A. Green One-Step Synthesis of Silver Nanoparticles Obtained from Schinus areira Leaf Extract: Characterization and Antibacterial Mechanism Analysis. Appl Biochem Biotechnol 2024; 196:1104-1121. [PMID: 37335458 DOI: 10.1007/s12010-023-04591-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/26/2023] [Indexed: 06/21/2023]
Abstract
The increased emergence of antibiotic-resistant bacteria is a serious health problem worldwide. In this sense, silver nanoparticles (AgNPs) have received increasing attention for their antimicrobial activity. In this context, the goal of this study was to produce AgNPs by a green synthesis protocol using an aqueous leaf extract of Schinus areira as biocomposite to later characterize their antimicrobial action. The nanomaterials obtained were characterized by UV‒vis spectroscopy, DLS, TEM, and Raman, confirming the presence of quasi-spherical AgNPs with a negative surface charge and diameter around 11 nm. Afterward, the minimum inhibitory and bactericidal concentration of the AgNPs against Staphylococcus aureus and Escherichia coli were obtained, showing high antibacterial activity. In both of the examined bacteria, the AgNPs were able to raise intracellular ROS levels. In E. coli, the AgNPs can harm the bacterial membrane as well. Overall, it can be concluded that it was possible to obtain AgNPs with colloidal stability and antibacterial activity against Gram-positive and Gram-negative bacteria. Our findings point to at least two separate mechanisms that can cause cell death, one of which involves bacterial membrane damage and the other of which involves intracellular ROS induction.
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Affiliation(s)
- Anike P V Ferreyra Maillard
- Laboratorio de Compuestos Bioactivos, Centro de Investigación en Biofísica Aplicada y Alimentos (CIBAAL), CONICET, Universidad Nacional de Santiago del Estero, RN 9 Km 1125, 4206, Santiago del Estero, Argentina
| | - Anahí Bordón
- Laboratorio de Compuestos Bioactivos, Centro de Investigación en Biofísica Aplicada y Alimentos (CIBAAL), CONICET, Universidad Nacional de Santiago del Estero, RN 9 Km 1125, 4206, Santiago del Estero, Argentina
- Facultad de Agronomía y Agroindustrias, Universidad Nacional de Santiago del Estero, RN 9 Km 1125, 4206, Santiago del Estero, Argentina
| | - Andrea C Cutro
- Laboratorio de Compuestos Bioactivos, Centro de Investigación en Biofísica Aplicada y Alimentos (CIBAAL), CONICET, Universidad Nacional de Santiago del Estero, RN 9 Km 1125, 4206, Santiago del Estero, Argentina
- Facultad de Ciencias Médicas, Universidad Nacional de Santiago del Estero, Calle Reforma del 18 N° 1234, 4200, Santiago del Estero, Argentina
| | - Pablo R Dalmasso
- CIQA, CONICET, Departamento de Ingeniería Química, Facultad Regional Córdoba, Universidad Tecnológica Nacional, Maestro López Esq. Cruz Roja Argentina, 5016, Córdoba, Argentina.
| | - Axel Hollmann
- Laboratorio de Compuestos Bioactivos, Centro de Investigación en Biofísica Aplicada y Alimentos (CIBAAL), CONICET, Universidad Nacional de Santiago del Estero, RN 9 Km 1125, 4206, Santiago del Estero, Argentina.
- Laboratorio de Microbiología Molecular, Instituto de Microbiología Básica y Aplicada, Universidad Nacional de Quilmes, Roque Sáenz Peña 352, B1876BXD, Bernal, Argentina.
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Tsakiridou M, Tsagkalias I, Papi RM, Achilias DS. Synthesis of Novel Nanocomposite Materials with Enhanced Antimicrobial Activity based on Poly(Ethylene Glycol Methacrylate)s with Ag, TiO 2 or ZnO Nanoparticles. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:291. [PMID: 38334562 PMCID: PMC10857080 DOI: 10.3390/nano14030291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 01/24/2024] [Accepted: 01/29/2024] [Indexed: 02/10/2024]
Abstract
The aim of this investigation was to prepare novel hybrid materials with enhanced antimicrobial properties to be used in food preservation and packaging applications. Therefore, nanocomposite materials were synthesized based on two stimuli-responsive oligo(ethylene glycol methacrylate)s, namely PEGMA and PEGMEMA, the first bearing hydroxyl side groups with three different metal nanoparticles, i.e., Ag, TiO2 and ZnO. The in situ radical polymerization technique was employed to ensure good dispersion of the nanoparticles in the polymer matrix. FTIR spectra identified the successful preparation of the corresponding polymers and XRD scans revealed the presence of the nanoparticles in the polymer matrix. In the polymer bearing hydroxyl groups, the presence of Ag-NPs led to slightly lower thermal stability as measured by TGA, whereas both ZnO and TiO2 led to nanomaterials with better thermal stability. The antimicrobial activity of all materials was determined against the Gram-negative bacteria E. coli and the Gram-positive S. aureus, B. subtilis and B. cereus. PEGMEMA nanocomposites had much better antimicrobial activity compared to PEGMA. Ag NPs exhibited the best inhibition of microbial growth in both polymers with all four bacteria. Nanocomposites with TiO2 showed a very good inhibition percentage when used in PEGMEMA-based materials, while in PEGMA material, high antimicrobial activity was observed only against E. coli and B. subtilis, with moderate activity against B. cereus and almost absent activity against S. aureus. The presence of ZnO showed antimicrobial activity only in the case of PEGMEMA-based materials. Differences observed in the antibacterial activity of the polymers with the different nanoparticles could be attributed to the different structure of the polymers and possibly the more efficient release of the NPs.
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Affiliation(s)
- Melpomeni Tsakiridou
- Laboratory of Polymer and Colors Chemistry and Technology, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (M.T.); (I.T.)
| | - Ioannis Tsagkalias
- Laboratory of Polymer and Colors Chemistry and Technology, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (M.T.); (I.T.)
| | - Rigini M. Papi
- Laboratory of Biochemistry, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
| | - Dimitris S. Achilias
- Laboratory of Polymer and Colors Chemistry and Technology, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (M.T.); (I.T.)
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Ioannou P, Baliou S, Samonis G. Nanotechnology in the Diagnosis and Treatment of Antibiotic-Resistant Infections. Antibiotics (Basel) 2024; 13:121. [PMID: 38391507 PMCID: PMC10886108 DOI: 10.3390/antibiotics13020121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 01/21/2024] [Accepted: 01/23/2024] [Indexed: 02/24/2024] Open
Abstract
The development of antimicrobial resistance (AMR), along with the relative reduction in the production of new antimicrobials, significantly limits the therapeutic options in infectious diseases. Thus, novel treatments, especially in the current era, where AMR is increasing, are urgently needed. There are several ongoing studies on non-classical therapies for infectious diseases, such as bacteriophages, antimicrobial peptides, and nanotechnology, among others. Nanomaterials involve materials on the nanoscale that could be used in the diagnosis, treatment, and prevention of infectious diseases. This review provides an overview of the applications of nanotechnology in the diagnosis and treatment of infectious diseases from a clinician's perspective, with a focus on pathogens with AMR. Applications of nanomaterials in diagnosis, by taking advantage of their electrochemical, optic, magnetic, and fluorescent properties, are described. Moreover, the potential of metallic or organic nanoparticles (NPs) in the treatment of infections is also addressed. Finally, the potential use of NPs in the development of safe and efficient vaccines is also reviewed. Further studies are needed to prove the safety and efficacy of NPs that would facilitate their approval by regulatory authorities for clinical use.
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Affiliation(s)
- Petros Ioannou
- School of Medicine, University of Crete, 71003 Heraklion, Greece
| | - Stella Baliou
- School of Medicine, University of Crete, 71003 Heraklion, Greece
| | - George Samonis
- School of Medicine, University of Crete, 71003 Heraklion, Greece
- First Department of Medical Oncology, Metropolitan Hospital of Neon Faliron, 18547 Athens, Greece
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42
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Wickramasinghe ND, Sampath AHJ, Nanayakkara CM, de Silva KMN, de Silva RM. Ilmenite-derived titanic acid species: exploring their outstanding light-independent antibacterial activity. RSC Adv 2024; 14:3379-3389. [PMID: 38259984 PMCID: PMC10801453 DOI: 10.1039/d3ra07262b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 01/05/2024] [Indexed: 01/24/2024] Open
Abstract
The emergence of resistance in detrimental pathogenic bacteria towards well-recognized antibiotics has greatly impacted global medicine, consequently exploring potent antibacterial compounds is becoming a potential area of research. Although photocatalytic metal oxides have been extensively explored in this regard, their applicability is diminished due to the requirement of photon energy. Therefore, in our study, we explored the light-independent antibacterial effect of two unexplored titanium species, known as metatitanic acid (MTA) and potassium titanate, against Staphylococcus aureus, Escherichia coli, and Pseudomonas spp. using the disk diffusion method in Luria-Bertani agar medium, where the well-known antibiotic, gentamicin, was used as the positive control. These two titanium compounds were readily synthesized through a novel process which was originally developed for the extraction of TiO2 from ilmenite. The synthesized MTA was characterized using FT-IR, Raman spectroscopy, XRD, TGA, UV-visible spectroscopy, and SEM. According to our findings, both MTA and potassium titanate exhibited superior light-independent antibacterial properties, where for some concentrations, the effect was even greater than gentamicin. However, nano-TiO2 totally failed as an antibacterial compound against the tested three strains under dark conditions.
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Affiliation(s)
- Nadeera Dilshan Wickramasinghe
- Centre for Advanced Materials and Devices (CAMD), Department of Chemistry, University of Colombo Colombo 00300 Sri Lanka +94714406263
| | - A H Janaka Sampath
- Centre for Advanced Materials and Devices (CAMD), Department of Chemistry, University of Colombo Colombo 00300 Sri Lanka +94714406263
| | | | - K M Nalin de Silva
- Centre for Advanced Materials and Devices (CAMD), Department of Chemistry, University of Colombo Colombo 00300 Sri Lanka +94714406263
| | - Rohini M de Silva
- Centre for Advanced Materials and Devices (CAMD), Department of Chemistry, University of Colombo Colombo 00300 Sri Lanka +94714406263
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Girma A, Abera B, Mekuye B, Mebratie G. Antibacterial Activity and Mechanisms of Action of Inorganic Nanoparticles against Foodborne Bacterial Pathogens: A Systematic Review. IET Nanobiotechnol 2024; 2024:5417924. [PMID: 38863967 PMCID: PMC11095078 DOI: 10.1049/2024/5417924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 06/25/2023] [Accepted: 07/18/2023] [Indexed: 06/13/2024] Open
Abstract
Foodborne disease outbreaks due to bacterial pathogens and their toxins have become a serious concern for global public health and security. Finding novel antibacterial agents with unique mechanisms of action against the current spoilage and foodborne bacterial pathogens is a central strategy to overcome antibiotic resistance. This study examined the antibacterial activities and mechanisms of action of inorganic nanoparticles (NPs) against foodborne bacterial pathogens. The articles written in English were recovered from registers and databases (PubMed, ScienceDirect, Web of Science, Google Scholar, and Directory of Open Access Journals) and other sources (websites, organizations, and citation searching). "Nanoparticles," "Inorganic Nanoparticles," "Metal Nanoparticles," "Metal-Oxide Nanoparticles," "Antimicrobial Activity," "Antibacterial Activity," "Foodborne Bacterial Pathogens," "Mechanisms of Action," and "Foodborne Diseases" were the search terms used to retrieve the articles. The PRISMA-2020 checklist was applied for the article search strategy, article selection, data extraction, and result reporting for the review process. A total of 27 original research articles were included from a total of 3,575 articles obtained from the different search strategies. All studies demonstrated the antibacterial effectiveness of inorganic NPs and highlighted their different mechanisms of action against foodborne bacterial pathogens. In the present study, small-sized, spherical-shaped, engineered, capped, low-dissolution with water, high-concentration NPs, and in Gram-negative bacterial types had high antibacterial activity as compared to their counterparts. Cell wall interaction and membrane penetration, reactive oxygen species production, DNA damage, and protein synthesis inhibition were some of the generalized mechanisms recognized in the current study. Therefore, this study recommends the proper use of nontoxic inorganic nanoparticle products for food processing industries to ensure the quality and safety of food while minimizing antibiotic resistance among foodborne bacterial pathogens.
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Affiliation(s)
- Abayeneh Girma
- Department of Biology, College of Natural and Computational Science, Mekdela Amba University, P.O. Box 32, Tuluawlia, Ethiopia
| | - Birhanu Abera
- Department of Physics, College of Natural and Computational Science, Mekdela Amba University, P.O. Box 32, Tuluawlia, Ethiopia
| | - Bawoke Mekuye
- Department of Physics, College of Natural and Computational Science, Mekdela Amba University, P.O. Box 32, Tuluawlia, Ethiopia
| | - Gedefaw Mebratie
- Department of Physics, College of Natural and Computational Science, Mekdela Amba University, P.O. Box 32, Tuluawlia, Ethiopia
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Geremew A, Gonzalles J, Peace E, Woldesenbet S, Reeves S, Brooks N, Carson L. Green Synthesis of Novel Silver Nanoparticles Using Salvia blepharophylla and Salvia greggii: Antioxidant and Antidiabetic Potential and Effect on Foodborne Bacterial Pathogens. Int J Mol Sci 2024; 25:904. [PMID: 38255978 PMCID: PMC10815671 DOI: 10.3390/ijms25020904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 01/03/2024] [Accepted: 01/08/2024] [Indexed: 01/24/2024] Open
Abstract
In the face of evolving healthcare challenges, the utilization of silver nanoparticles (AgNPs) has emerged as a compelling solution due to their unique properties and versatile applications. The aim of this study was the synthesis and characterization of novel AgNPs (SB-AgNPs and SG-AgNPs, respectively) using Salvia blepharophylla and Salvia greggii leaf extracts and the evaluation of their antimicrobial, antioxidant, and antidiabetic activities. Several analytical instrumental techniques were utilized for the characterization of SB-AgNPs and SG-AgNPs, including UV-visible (UV-Vis) spectroscopy, transmission electron microscopy (TEM), dynamic light scattering (DLS), Fourier transmission infrared (FT-IR) spectroscopy, energy-dispersive X-ray analysis (EDX), and X-ray diffraction (XRD). FTIR analysis identified various functional groups in the leaf extracts and nanoparticles, suggesting the involvement of phytochemicals as reducing and stabilizing agents. High-resolution TEM images displayed predominantly spherical nanoparticles with average sizes of 52.4 nm for SB-AgNPs and 62.5 nm for SG-AgNPs. Both SB-AgNPs and SG-AgNPs demonstrated remarkable antimicrobial activity against Gram-positive bacteria Staphylococcus aureus and Listeria monocytogenes and Gram-negative bacteria Salmonella typhimurium and Escherichia coli. SB-AgNPs and SG-AgNPs also exhibited 90.2 ± 1.34% and 89.5 ± 1.5% DPPH scavenging and 86.5 ± 1.7% and 80.5 ± 1.2% α-amylase inhibition, respectively, at a concentration of 100 μg mL-1. Overall, AgNPs synthesized using S. blepharophylla and Salvia greggii leaf extracts may serve as potential candidates for antibacterial, antioxidant, and antidiabetic agents. Consequently, this study provides viable solutions to mitigate the current crisis of antibiotic resistance and to efficiently combat antimicrobial infections and Type 2 diabetes.
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Affiliation(s)
- Addisie Geremew
- Cooperative Agricultural Research Center, Prairie View A&M University, Prairie View, TX 77446, USA; (A.G.); (J.G.III); (E.P.); (S.W.)
| | - John Gonzalles
- Cooperative Agricultural Research Center, Prairie View A&M University, Prairie View, TX 77446, USA; (A.G.); (J.G.III); (E.P.); (S.W.)
| | - Elisha Peace
- Cooperative Agricultural Research Center, Prairie View A&M University, Prairie View, TX 77446, USA; (A.G.); (J.G.III); (E.P.); (S.W.)
| | - Selamawit Woldesenbet
- Cooperative Agricultural Research Center, Prairie View A&M University, Prairie View, TX 77446, USA; (A.G.); (J.G.III); (E.P.); (S.W.)
| | - Sheena Reeves
- Department of Chemical Engineering, College of Engineering, Prairie View A&M University, Prairie View, TX 77446, USA; (S.R.); (N.B.J.)
| | - Nigel Brooks
- Department of Chemical Engineering, College of Engineering, Prairie View A&M University, Prairie View, TX 77446, USA; (S.R.); (N.B.J.)
| | - Laura Carson
- Cooperative Agricultural Research Center, Prairie View A&M University, Prairie View, TX 77446, USA; (A.G.); (J.G.III); (E.P.); (S.W.)
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Dhir R, Chauhan S, Subham P, Kumar S, Sharma P, Shidiki A, Kumar G. Plant-mediated synthesis of silver nanoparticles: unlocking their pharmacological potential-a comprehensive review. Front Bioeng Biotechnol 2024; 11:1324805. [PMID: 38264582 PMCID: PMC10803431 DOI: 10.3389/fbioe.2023.1324805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Accepted: 12/18/2023] [Indexed: 01/25/2024] Open
Abstract
In recent times, nanoparticles have experienced a significant upsurge in popularity, primarily owing to their minute size and their remarkable ability to modify physical, chemical, and biological properties. This burgeoning interest can be attributed to the expanding array of biomedical applications where nanoparticles find utility. These nanoparticles, typically ranging in size from 10 to 100 nm, exhibit diverse shapes, such as spherical, discoidal, and cylindrical configurations. These variations are not solely influenced by the manufacturing processes but are also intricately linked to interactions with surrounding stabilizing agents and initiators. Nanoparticles can be synthesized through physical or chemical methods, yet the biological approach emerges as the most sustainable and eco-friendly alternative among the three. Among the various nanoparticle types, silver nanoparticles have emerged as the most encountered and widely utilized due to their exceptional properties. What makes the synthesis of silver nanoparticles even more appealing is the application of plant-derived sources as reducing agents. This approach not only proves to be cost-effective but also significantly reduces the synthesis time. Notably, silver nanoparticles produced through plant-mediated processes have garnered considerable attention in recent years due to their notable medicinal capabilities. This comprehensive review primarily delves into the diverse medicinal attributes of silver nanoparticles synthesized using plant-mediated techniques. Encompassing antimicrobial properties, cytotoxicity, wound healing, larvicidal effects, anti-angiogenesis activity, antioxidant potential, and antiplasmodial activity, the paper extensively covers these multifaceted roles. Additionally, an endeavor is made to provide an elucidated summary of the operational mechanisms underlying the pharmacological actions of silver nanoparticles.
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Affiliation(s)
- Rajan Dhir
- Department of Microbiology, School of Bioengineering and Biosciences, Lovely Professional University, Punjab, India
| | - Sakshi Chauhan
- Department of Microbiology, School of Bioengineering and Biosciences, Lovely Professional University, Punjab, India
| | - Praddiuman Subham
- Department of Microbiology, School of Bioengineering and Biosciences, Lovely Professional University, Punjab, India
| | - Saksham Kumar
- Department of Microbiology, School of Bioengineering and Biosciences, Lovely Professional University, Punjab, India
| | - Pratham Sharma
- Department of Microbiology, School of Bioengineering and Biosciences, Lovely Professional University, Punjab, India
| | - Amrullah Shidiki
- Department of Microbiology, National Medical College and Teaching Hospital, Birgunj, Nepal
| | - Gaurav Kumar
- Department of Microbiology, School of Bioengineering and Biosciences, Lovely Professional University, Punjab, India
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Mubaraki MA, Ali J, Khattak B, Fozia F, Khan TA, Hussain M, Aslam M, Iftikhar A, Ahmad I. Characterization and Antibacterial Potential of Iron Oxide Nanoparticles in Eradicating Uropathogenic E. coli. ACS OMEGA 2024; 9:166-177. [PMID: 38222566 PMCID: PMC10785290 DOI: 10.1021/acsomega.3c03078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 07/21/2023] [Accepted: 11/13/2023] [Indexed: 01/16/2024]
Abstract
Proper management and control measurements are needed to stop the spread of highly pathogenic E. coli isolates that cause urinary tract infections (UTI) by developing new antibacterial agents to ensure the safety of public health. Therefore, the present investigations were used to achieve the synthesis of iron oxide nanoparticles (IONPs) via a simple coprecipitation method using ferric nitrates Fe (NO3)3 as the precursor and hydrazine solution as the precipitator and to explore the antibacterial activity against eradicating Uropathogenic Escherichia coli (E. coli). The synthesized IONPs were further studied using a UV-vis spectrophotometer, Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), and scanning electron microscopic (SEM) analysis. The maximum surface plasmon resonance peak was observed as absorption at 320 nm in a colloidal solution to validate the synthesis of IONPs. The FT-IR analysis was used to identify different photoactive functional groups that were responsible for the reduction of Fe (NO3)3 to IONPs. The crystalline nature of synthesized IONPs was revealed by XRD patterns with an average particle size ranging as 29 nm. The SEM image was employed to recognize the irregular morphology of synthesized nanoparticles. Moreover, significant antibacterial activity was observed at 1 mg/mL stock solution but after (125, 250, and 500 μg/mL) dilution, the synthesized IONPs showed moderate activity and became inactive at lower concentrations. The morphological and biochemical tests were used to confirm the presence of E. coli in the samples. Furthermore, the minimum inhibitory concentration (MIC) and minimum bacterial concentration (MBC) were carried out to determine the inhibitory concentrations for the isolated bacteria. The isolated E. coli were also subjected to antibiotic sensitivity testing that showed high resistance to antibiotics such as penicillin and amoxicillin. Thus, the findings of this study were to use IONPs against antibiotic resistance that has been developed in an inappropriate way.
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Affiliation(s)
- Murad A Mubaraki
- Clinical Laboratory Sciences Department, College of Applied Medical Sciences, King Saud University, Riyadh 11433, Saudi Arabia
| | - Jaseem Ali
- Department of Microbiology, Kohat University of Science and Technology, Kohat 26000, Pakistan
| | - Baharullah Khattak
- Department of Microbiology, Kohat University of Science and Technology, Kohat 26000, Pakistan
| | - Fozia Fozia
- Biochemistry Department, Khyber Medical University Institute of Dental Sciences, Kohat 26000, Pakistan
| | - Taj Ali Khan
- Department of Microbiology, Kohat University of Science and Technology, Kohat 26000, Pakistan
- Institute of Pathology and Diagnostic Medicine, Khyber Medical University, Peshawar, Khyber Pakhtunkhwa 25100, Pakistan
| | - Mubbashir Hussain
- Department of Microbiology, Kohat University of Science and Technology, Kohat 26000, Pakistan
| | - Madeeha Aslam
- Department of Chemistry, Kohat University of Science & Technology, Kohat 26000, Pakistan
| | - Anisa Iftikhar
- Bio-science and Biotechnology, Clarkson University, Box 5805, 8 Clarkson Avenue, Potsdam, New York 13699-5725, United States
| | - Ijaz Ahmad
- Department of Chemistry, Kohat University of Science & Technology, Kohat 26000, Pakistan
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Mahmoud R, Kotb NM, GadelHak Y, El-Ela FIA, Shehata AZ, Othman SI, Allam AA, Rudayni HA, Zaher A. Investigation of ternary Zn-Co-Fe layered double hydroxide as a multifunctional 2D layered adsorbent for moxifloxacin and antifungal disinfection. Sci Rep 2024; 14:806. [PMID: 38191628 PMCID: PMC10774404 DOI: 10.1038/s41598-023-48382-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 11/26/2023] [Indexed: 01/10/2024] Open
Abstract
Layered double hydroxides have recently gained wide interest as promising multifunctional nanomaterials. In this work, a multifunctional ternary Zn-Co-Fe LDH was prepared and characterized using XRD, FTIR, BET, TEM, SEM, and EDX. This LDH showed a typical XRD pattern with a crystallite size of 3.52 nm and a BET surface area of 155.9 m2/g. This LDH was investigated, for the first time, as an adsorbent for moxifloxacin, a common fluoroquinolones antibiotic, showing a maximum removal efficiency and equilibrium time of 217.81 mg/g and 60 min, respectively. Its antifungal activity, for the first time, was investigated against Penicillium notatum, Aspergillus flavus, Aspergillus fumigatus, Aspergillus niger, and Mucor fungi at various concentrations (1000-1.95 µg/mL). This LDH was found to be effective against a variety of fungal strains, particularly Penicillium and Mucor species and showed zones of inhibition of 19.3 and 21.6 mm for Penicillium and Mucor, respectively, with an inhibition of 85% for Penicillium species and 68.3% for Mucormycosis. The highest antifungal efficacy results were obtained at very low MIC concentrations (33.3 and 62 µg/ml) against Penicillium and Mucor, respectively. The results of this study suggest a promising multifunctional potential of this LDH for water and wastewater treatment and disinfection applications.
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Affiliation(s)
- Rehab Mahmoud
- Chemistry Department, Faculty of Science, Beni-Suef University, Beni-Suef, 62511, Egypt.
| | - Nada M Kotb
- Hydrogeology and Environment Department, Faculty of Earth Sciences, Beni-Suef University, Beni-Suef, Egypt
| | - Yasser GadelHak
- Department of Materials Science and Nanotechnology, Faculty of Postgraduate Studies for Advanced Sciences, Beni-Suef University, Beni-Suef, 62511, Egypt
| | - Fatma I Abo El-Ela
- Department of Pharmacology, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, 62511, Egypt
| | - Ayman Z Shehata
- Department of Food Safety and Technology, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, Egypt
| | - Sarah I Othman
- Department of Biology, College of Science, Princess Nourah Bint Abdulrahman University, P.O. BOX 84428, 11671, Riyadh, Saudi Arabia
| | - Ahmed A Allam
- Department of Biology, College of Science, Imam Muhammad Ibn Saud Islamic University, 11623, Riyadh, Saudi Arabia
- Department of Zoology, Faculty of Science, Beni-Suef University, Beni-Suef, 62511, Egypt
| | - Hassan Ahmed Rudayni
- Department of Biology, College of Science, Imam Muhammad Ibn Saud Islamic University, 11623, Riyadh, Saudi Arabia
| | - Amal Zaher
- Environmental Science and Industrial Development Department, Faculty of Postgraduate Studies for Advanced Sciences, Beni-Suef University, Beni-Suef, Egypt
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48
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Ekram B, Tolba E, El-Sayed AF, Müller WEG, Schröder HC, Wang X, Abdel-Hady BM. Cell migration, DNA fragmentation and antibacterial properties of novel silver doped calcium polyphosphate nanoparticles. Sci Rep 2024; 14:565. [PMID: 38177275 PMCID: PMC10766647 DOI: 10.1038/s41598-023-50849-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Accepted: 12/27/2023] [Indexed: 01/06/2024] Open
Abstract
To combat infections, silver was used extensively in biomedical field but there was a need for a capping agent to eliminate its cytotoxic effects. In this study, polymeric calcium polyphosphate was doped by silver with three concentrations 1, 3 or 5 mol.% and were characterized by TEM, XRD, FTIR, TGA. Moreover, cytotoxicity, antibacterial, cell migration and DNA fragmentation assays were done to assure its safety. The results showed that the increase in silver percentage caused an increase in particle size. XRD showed the silver peaks, which indicated that it is present in its metallic form. The TGA showed that thermal stability was increased by increasing silver content. The antibacterial tests showed that the prepared nanoparticles have an antibacterial activity against tested pathogens. In addition, the cytotoxicity results showed that the samples exhibited non-cytotoxic behavior even with the highest doping concentration (5% Ag-CaPp). The cell migration assay showed that the increase in the silver concentration enhances cell migration up to 3% Ag-CaPp. The DNA fragmentation test revealed that all the prepared nanoparticles caused no fragmentation. From the results we can deduce that 3% Ag-CaPp was the optimum silver doped calcium polyphosphate concentration that could be used safely for medical applications.
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Affiliation(s)
- Basma Ekram
- Polymers and Pigments Department, Chemical Industries Research Institute, National Research Centre, Cairo, 12622, Egypt.
| | - Emad Tolba
- Polymers and Pigments Department, Chemical Industries Research Institute, National Research Centre, Cairo, 12622, Egypt
| | - Ahmed F El-Sayed
- Microbial Genetics Department, Biotechnology Research Institute, National Research Centre, Cairo, 12622, Egypt
- Egypt Center for Research and Regenerative Medicine (ECRRM), Cairo, Egypt
| | - Werner E G Müller
- ERC Advanced Investigator Grant Research Group at the Institute for Physiological Chemistry, University Medical Center of the Johannes Gutenberg University, Duesbergweg 6, 55128, Mainz, Germany
| | - Heinz C Schröder
- ERC Advanced Investigator Grant Research Group at the Institute for Physiological Chemistry, University Medical Center of the Johannes Gutenberg University, Duesbergweg 6, 55128, Mainz, Germany
| | - Xiaohong Wang
- ERC Advanced Investigator Grant Research Group at the Institute for Physiological Chemistry, University Medical Center of the Johannes Gutenberg University, Duesbergweg 6, 55128, Mainz, Germany
| | - Bothaina M Abdel-Hady
- Polymers and Pigments Department, Chemical Industries Research Institute, National Research Centre, Cairo, 12622, Egypt
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49
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Khanam A, Singh G, Narwal S, Chopra B, Dhingra AK. A Review on Novel Applications of Nanotechnology in the Management of Prostate Cancer. Curr Drug Deliv 2024; 21:1161-1179. [PMID: 37888818 DOI: 10.2174/0115672018180695230925113521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 07/09/2023] [Accepted: 07/26/2023] [Indexed: 10/28/2023]
Abstract
BACKGROUND Prostate cancer continues to be a serious danger to men's health, despite advances in the field of cancer nanotechnology. Although different types of cancer have been studied using nanomaterials and theranostic systems derived from nanomaterials, they have not yet reached their full potential for prostate cancer due to issues with in vivo biologic compatibility, immune reaction responses, accurate targetability, as well as a therapeutic outcome related to the nano-structured mechanism. METHOD The ultimate motive of this article is to understand the theranostic nanotechnology-based scheme for treating prostate cancer. The categorization of diverse nanomaterials in accordance with biofunctionalization tactics and biomolecule sources has been emphasized in this review so that they might potentially be used in clinical contexts and future advances. These opportunities can enhance the direct visualization of prostate tumors, early identification of prostate cancer-associated biomarkers at extremely low detection limits, and finally, the therapy for prostate cancer. RESULT In December 2022, a thorough examination of the scientific literature was carried out utilizing the Web of Science, PubMed, and Medline databases. The goal was to analyze novel applications of nanotechnology in the treatment of prostate cancer, together with their structural layouts and functionalities. CONCLUSION The various treatments and the reported revolutionary nanotechnology-based systems appear to be precise, safe, and generally successful; as a result, this might open up a new avenue for the detection and eradication of prostate cancer.
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Affiliation(s)
- Arshi Khanam
- Institute of Pharmaceutical Sciences, Kurukshetra University Kurukshetra-136119, Haryana, India
| | - Gurvirender Singh
- Institute of Pharmaceutical Sciences, Kurukshetra University Kurukshetra-136119, Haryana, India
| | - Smita Narwal
- Global Research Institute of Pharmacy, Radaur, Yamunanagar-135133, Haryana, India
| | - Bhawna Chopra
- Guru Gobind Singh College of Pharmacy, Yamuna Nagar-135001, Haryana, India
| | - Ashwani K Dhingra
- Guru Gobind Singh College of Pharmacy, Yamuna Nagar-135001, Haryana, India
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50
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Li HF, Pan ZC, Chen JM, Zeng LX, Xie HJ, Liang ZQ, Wang Y, Zeng NK. Green synthesis of silver nanoparticles using Phlebopus portentosus polysaccharide and their antioxidant, antidiabetic, anticancer, and antimicrobial activities. Int J Biol Macromol 2024; 254:127579. [PMID: 37918606 DOI: 10.1016/j.ijbiomac.2023.127579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 10/06/2023] [Accepted: 10/19/2023] [Indexed: 11/04/2023]
Abstract
Silver nanoparticles (AgNPs) by green synthesis from fungi polysaccharides are attracting increasing attention owing to their distinctive features and special applications in numerous fields. In this study, a cost-effective and environmentally friendly biosynthesizing AgNPs method with no toxic chemicals involved from the fruiting body polysaccharide of Phlebopus portentosus (PPP) was established and optimized by single factor experiment and response surface methodology. The optimum synthesis conditions of polysaccharide-AgNPs (PPP-AgNPs) were identified to be the reaction time of 140 min, reaction temperature of 94 °C, and the PPP: AgNO3 ratio of 1:11.5. Formation of PPP-AgNPs was indicated by visual detection of colour change from yellowish to yellowish brown. PPP-AgNPs were characterized by different methods and further evaluated for biological activities. That the Ultraviolet-visible (UV-Vis.) spectroscopy displayed a sharp absorption peak at 420 nm confirmed the formation of AgNPs. Fourier transform infrared (FTIR) analysis detected the presence of various functional groups. The lattice indices of (111), (200), (220), and (331), which indicated a faced-centered-cubic of the Ag crystal structure of PPP-AgNPs, was confirmed by X-ray diffraction (XRD) and the particles were found to be spherical through high resolution transmission electron microscopy (HRTEM). Energy dispersive X-ray spectroscopy (EDS) determined the presence of silver in PPP-AgNPs. The percentage relative composition of elements was determined as silver (Ag) 82.5 % and oxygen (O) 17.5 % for PPP-AgNPs, and did not exhibit any nitrogen peaks. The specific surface area of PPP-AgNPs was calculated to be 0.5750 m2/g with an average pore size of 24.33 nm by BET analysis. The zeta potential was -4.32 mV, which confirmed the stability and an average particle size of 64.5 nm was calculated through dynamic light scattering (DLS). PPP-AgNPs exhibited significant free radical scavenging activity against DPPH with an IC50 value of 0.1082 mg/mL. The MIC values of PPP-AgNPs for E. coli, S. aureus, C. albicans, C. glabrata, and C. parapsilosis are 0.05 mg/mL. The IC50 value of the inhibition of PPP-AgNPs against α-glucosidase was 11.1 μg/mL, while the IC50 values of PPP-AgNPs against HepG2 and MDA-MB-231 cell lines were calculated to be 14.36 ± 0.43 μg/mL and 40.05 ± 2.71 μg/mL, respectively. According to the evaluation, it can be concluded that these green-synthesized and eco-friendly PPP-AgNPs are helpful to improve therapeutics because of significant antioxidant, antimicrobial, antidiabetic, and anticancer properties to provide new possibilities for clinic applications.
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Affiliation(s)
- Hong-Fu Li
- School of Pharmacy, North China University of Science and Technology, Tangshan 063210, China
| | - Zhang-Chao Pan
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory of Research and Development on Tropical Herbs, School of Pharmacy, Hainan Medical University, Haikou 571199, China
| | - Jiao-Man Chen
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory of Research and Development on Tropical Herbs, School of Pharmacy, Hainan Medical University, Haikou 571199, China
| | - Lei-Xia Zeng
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory of Research and Development on Tropical Herbs, School of Pharmacy, Hainan Medical University, Haikou 571199, China
| | - Hui-Jing Xie
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory of Research and Development on Tropical Herbs, School of Pharmacy, Hainan Medical University, Haikou 571199, China
| | - Zhi-Qun Liang
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, Key Laboratory of Tropical Animal and Plant Ecology of Hainan Province, College of Life Sciences, Hainan Normal University, Haikou 571158, China; College of Science, Hainan University, Haikou 570228, China
| | - Yong Wang
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory of Research and Development on Tropical Herbs, School of Pharmacy, Hainan Medical University, Haikou 571199, China.
| | - Nian-Kai Zeng
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Provincial Key Laboratory of Research and Development on Tropical Herbs, School of Pharmacy, Hainan Medical University, Haikou 571199, China; Ministry of Education Key Laboratory for Ecology of Tropical Islands, Key Laboratory of Tropical Animal and Plant Ecology of Hainan Province, College of Life Sciences, Hainan Normal University, Haikou 571158, China.
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