1
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Khan M, Alkhathlan HZ, Adil SF, Shaik MR, Siddiqui MRH, Khan M, Khan ST. Secondary metabolite profile of Streptomyces spp. changes when grown with the sub-lethal concentration of silver nanoparticles: possible implication in novel compound discovery. Antonie Van Leeuwenhoek 2024; 117:95. [PMID: 38967683 DOI: 10.1007/s10482-024-01991-9] [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: 02/25/2024] [Accepted: 06/18/2024] [Indexed: 07/06/2024]
Abstract
The decline of new antibiotics and the emergence of multidrug resistance in pathogens necessitates a revisit of strategies used for lead compound discovery. This study proposes to induce the production of bioactive compounds with sub-lethal concentrations of silver nanoparticles (Ag-NPs). A total of Forty-two Actinobacteria isolates from four Saudi soil samples were grown with and without sub-lethal concentration of Ag-NPs (50 µg ml-1). The spent broth grown with Ag-NPs, or without Ag-NPs were screened for antimicrobial activity against four bacteria. Interestingly, out of 42 strains, broths of three strains grown with sub-lethal concentration of Ag-NPs exhibit antimicrobial activity against Staphylococcus aureus and Micrococcus luteus. Among these, two strains S4-4 and S4-21 identified as Streptomyces labedae and Streptomyces tirandamycinicus based on 16S rRNA gene sequence were selected for detailed study. The change in the secondary metabolites profile in the presence of Ag-NPs was evaluated using GC-MS and LC-MS analyses. Butanol extracts of spent broth grown with Ag-NPs exhibit strong antimicrobial activity against M. luteus and S. aureus. While the extracts of the controls with the same concentration of Ag-NPs do not show any activity. GC-analysis revealed a clear change in the secondary metabolite profile when grown with Ag-NPs. Similarly, the LC-MS patterns also differ significantly. Results of this study, strongly suggest that sub-lethal concentrations of Ag-NPs influence the production of secondary metabolites by Streptomyces. Besides, LC-MS results identified possible secondary metabolites, associated with oxidative stress and antimicrobial activities. This strategy can be used to possibly induce cryptic biosynthetic gene clusters for the discovery of new lead compounds.
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Affiliation(s)
- Merajuddin Khan
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, 11451, Riyadh, Saudi Arabia
| | - Hamad Z Alkhathlan
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, 11451, Riyadh, Saudi Arabia
| | - Syed Farooq Adil
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, 11451, Riyadh, Saudi Arabia
| | - Mohammed Rafi Shaik
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, 11451, Riyadh, Saudi Arabia
| | | | - Mujeeb Khan
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, 11451, Riyadh, Saudi Arabia.
| | - Shams Tabrez Khan
- Department of Agricultural Microbiology, Faculty of Agricultural Science, Aligarh Muslim University, Aligarh, U.P., 202002, India.
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2
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Ahmad N, Bukhari SNA, Hussain MA, Ejaz H, Munir MU, Amjad MW. Nanoparticles incorporated hydrogels for delivery of antimicrobial agents: developments and trends. RSC Adv 2024; 14:13535-13564. [PMID: 38665493 PMCID: PMC11043667 DOI: 10.1039/d4ra00631c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Accepted: 04/01/2024] [Indexed: 04/28/2024] Open
Abstract
The prevention and treatment of microbial infections is an imminent global public health concern due to the poor antimicrobial performance of the existing antimicrobial regime and rapidly emerging antibiotic resistance in pathogenic microbes. In order to overcome these problems and effectively control bacterial infections, various new treatment modalities have been identified. To attempt this, various micro- and macro-molecular antimicrobial agents that function by microbial membrane disruption have been developed with improved antimicrobial activity and lesser resistance. Antimicrobial nanoparticle-hydrogels systems comprising antimicrobial agents (antibiotics, biological extracts, and antimicrobial peptides) loaded nanoparticles or antimicrobial nanoparticles (metal or metal oxide) constitute an important class of biomaterials for the prevention and treatment of infections. Hydrogels that incorporate nanoparticles can offer an effective strategy for delivering antimicrobial agents (or nanoparticles) in a controlled, sustained, and targeted manner. In this review, we have described an overview of recent advancements in nanoparticle-hydrogel hybrid systems for antimicrobial agent delivery. Firstly, we have provided an overview of the nanoparticle hydrogel system and discussed various advantages of these systems in biomedical and pharmaceutical applications. Thereafter, different hybrid hydrogel systems encapsulating antibacterial metal/metal oxide nanoparticles, polymeric nanoparticles, antibiotics, biological extracts, and antimicrobial peptides for controlling infections have been reviewed in detail. Finally, the challenges and future prospects of nanoparticle-hydrogel systems have been discussed.
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Affiliation(s)
- Naveed Ahmad
- Department of Pharmaceutics, College of Pharmacy, Jouf University Sakaka 72388 Aljouf Saudi Arabia
| | - Syed Nasir Abbas Bukhari
- Department of Pharmaceutical Chemistry, College of Pharmacy, Jouf University Sakaka 72388 Aljouf Saudi Arabia
| | - Muhammad Ajaz Hussain
- Centre for Organic Chemistry, School of Chemistry, University of the Punjab Lahore 54590 Pakistan
| | - Hasan Ejaz
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Jouf University Sakaka 72388 Aljouf Saudi Arabia
| | - Muhammad Usman Munir
- Australian Institute for Bioengineering & Nanotechnology, The University of Queensland Brisbane Queens-land 4072 Australia
| | - Muhammad Wahab Amjad
- 6 Center for Ultrasound Molecular Imaging and Therapeutics, School of Medicine, University of Pittsburgh 15213 Pittsburgh Pennsylvania USA
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3
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Samal D, Khandayataray P, Sravani M, Murthy MK. Silver nanoparticle ecotoxicity and phytoremediation: a critical review of current research and future prospects. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:8400-8428. [PMID: 38182947 DOI: 10.1007/s11356-023-31669-0] [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: 05/10/2023] [Accepted: 12/18/2023] [Indexed: 01/07/2024]
Abstract
Silver nanoparticles (AgNPs) are widely used in various industries, including textiles, electronics, and biomedical fields, due to their unique optical, electronic, and antimicrobial properties. However, the extensive use of AgNPs has raised concerns about their potential ecotoxicity and adverse effects on the environment. AgNPs can enter the environment through different pathways, such as wastewater, surface runoff, and soil application and can interact with living organisms through adsorption, ingestion, and accumulation, causing toxicity and harm. The small size, high surface area-to-volume ratio, and ability to generate reactive oxygen species (ROS) make AgNPs particularly toxic. Various bioremediation strategies, such as phytoremediation, have been proposed to mitigate the toxic effects of AgNPs and minimize their impact on the environment. Further research is needed to improve these strategies and ensure their safety and efficacy in different environmental settings.
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Affiliation(s)
- Dibyaranjan Samal
- Department of Biotechnology, Sri Satya Sai University of Technical and Medical Sciences, Sehore, Bhopal, Madhya Pradesh, India
| | - Pratima Khandayataray
- Department of Biotechnology, Academy of Management and Information Technology, Utkal University, Bhubaneswar, 752057, Odisha, India
| | - Meesala Sravani
- Department of Computer Science and Engineering, GMR Institute of Technology, Rajam, 532127, India
| | - Meesala Krishna Murthy
- Department of Allied Health Sciences, Chitkara School of Health Sciences, Chitkara University, Punjab, 140401, India.
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4
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Vinceković M, Jurić S, Vlahoviček-Kahlina K, Martinko K, Šegota S, Marijan M, Krčelić A, Svečnjak L, Majdak M, Nemet I, Rončević S, Rezić I. Novel Zinc/Silver Ions-Loaded Alginate/Chitosan Microparticles Antifungal Activity against Botrytis cinerea. Polymers (Basel) 2023; 15:4359. [PMID: 38006083 PMCID: PMC10674643 DOI: 10.3390/polym15224359] [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: 10/10/2023] [Revised: 11/06/2023] [Accepted: 11/07/2023] [Indexed: 11/26/2023] Open
Abstract
Addressing the growing need for environmentally friendly fungicides in agriculture, this study explored the potential of biopolymer microparticles loaded with metal ions as a novel approach to combat fungal pathogens. Novel alginate microspheres and chitosan/alginate microcapsules loaded with zinc or with zinc and silver ions were prepared and characterized (microparticle size, morphology, topography, encapsulation efficiency, loading capacity, and swelling behavior). Investigation of molecular interactions in microparticles using FTIR-ATR spectroscopy exhibited complex interactions between all constituents. Fitting to the simple Korsmeyer-Peppas empirical model revealed the rate-controlling mechanism of metal ions release from microparticles is Fickian diffusion. Lower values of the release constant k imply a slower release rate of Zn2+ or Ag+ ions from microcapsules compared to that of microspheres. The antimicrobial potential of the new formulations against the fungus Botrytis cinerea was evaluated. When subjected to tests against the fungus, microspheres exhibited superior antifungal activity especially those loaded with both zinc and silver ions, reducing fungal growth up to 98.9% and altering the hyphal structures. Due to the slower release of metal ions, the microcapsule formulations seem suitable for plant protection throughout the growing season. The results showed the potential of these novel microparticles as powerful fungicides in agriculture.
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Affiliation(s)
- Marko Vinceković
- Department of Chemistry, Faculty of Agriculture, University of Zagreb, Svetošimunska 25, 10000 Zagreb, Croatia; (S.J.); (K.V.-K.); (A.K.)
| | - Slaven Jurić
- Department of Chemistry, Faculty of Agriculture, University of Zagreb, Svetošimunska 25, 10000 Zagreb, Croatia; (S.J.); (K.V.-K.); (A.K.)
| | - Kristina Vlahoviček-Kahlina
- Department of Chemistry, Faculty of Agriculture, University of Zagreb, Svetošimunska 25, 10000 Zagreb, Croatia; (S.J.); (K.V.-K.); (A.K.)
| | - Katarina Martinko
- Department of Plant Pathology, Faculty of Agriculture, University of Zagreb, Svetošimunska 25, 10000 Zagreb, Croatia;
| | - Suzana Šegota
- Laboratory for Biocolloids and Surface Chemistry, Ruđer Bošković Institute, Bijenička 54, 10000 Zagreb, Croatia;
| | - Marijan Marijan
- Department of Quality Control, The Institute of Immunology, Rockefellerova 2, 10000 Zagreb, Croatia;
| | - Ana Krčelić
- Department of Chemistry, Faculty of Agriculture, University of Zagreb, Svetošimunska 25, 10000 Zagreb, Croatia; (S.J.); (K.V.-K.); (A.K.)
| | - Lidija Svečnjak
- Department of Fisheries, Apiculture, Wildlife Management and Special Zoology, Faculty of Agriculture, University of Zagreb, Svetošimunska 25, 10000 Zagreb, Croatia;
| | - Mislav Majdak
- Department of Applied Chemistry, University of Textile Technology, Prilaz Baruna Filipovića 28a, 10000 Zagreb, Croatia;
| | - Ivan Nemet
- Department of Analytical Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, 10000 Zagreb, Croatia; (I.N.); (S.R.)
| | - Sanda Rončević
- Department of Analytical Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, 10000 Zagreb, Croatia; (I.N.); (S.R.)
| | - Iva Rezić
- Department of Applied Chemistry, University of Textile Technology, Prilaz Baruna Filipovića 28a, 10000 Zagreb, Croatia;
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5
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Ghavam M. Antibacterial potential of biosynthesized silver nanoparticles using Nepeta sessilifolia Bunge and Salvia hydrangea DC. ex Benth. extracts from the natural habitats of Iran's Rangelands. BMC Complement Med Ther 2023; 23:299. [PMID: 37620931 PMCID: PMC10463634 DOI: 10.1186/s12906-023-04101-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Accepted: 07/21/2023] [Indexed: 08/26/2023] Open
Abstract
BACKGROUND Nowadays, the use of herbal extracts for the production of nanoparticles has attracted a lot of attention due to the fast reaction, economy, and compatibility with the environment. The aim of the present study is the biosynthesis of silver nanoparticles from the extracts of Nepeta sessilifolia Bunge and Salvia hydrangea DC. ex Benth. and their antibacterial activity was measured. METHODS For this purpose, the flowering branch of N. sessilifolia and the flower of S. hydrangea were randomly collected from three places, respectively, from the rangelands of Aqdash Mountain and Biabe in Isfahan province, Iran in May 2021. After extracting aqueous extracts by hot method, silver nanoparticles were synthesized by the biological method. Green synthesized silver nanoparticles were analyzed by UV-Vis spectroscopy, XRD, FTIR, and FESEM-EDAX. The antibacterial effect was evaluated by diffusion method in agar and determination of minimum growth inhibitory and lethal concentration (MIC and MBC) by dilution method in liquid culture medium. RESULTS Based on the results of UV-Vis spectroscopy, silver nanoparticles synthesized from N. sessilifolia and S. hydrangea had distinct absorption peaks at wavelengths of 407 to 424 nm and 414 to 415 nm, respectively. The crystalline nature of these synthetic silver nanoparticles was confirmed by XRD. FESEM analysis showed that the size of biosynthesized silver nanoparticles from N. sessilifolia and S. hydrangea extracts were 10-50 nm and 10-80 nm, respectively, and were cubic. The results of diffusion in agar showed that the largest diameter of the growth inhibition zone belonging to the synthetic silver nanoparticles from both extracts of N. sessilifolia (~ 26.00 mm) and S. hydrangea (~ 23.50 mm) was against Gram-positive bacteria Staphylococcus aureus. The most vigorous killing activity by synthetic silver nanoparticles from N. sessilifolia extract was against Klebsiella pneumoniae with a value of 250 μg/mL, two times stronger than rifampin. CONCLUSION Therefore, the studied extracts can be suitable options for fast and safe green synthesis of silver nanoparticles effective against some bacterial strains. These synthetic silver nanoparticles can be used as possible options and have strong potential for the production of natural antibiotics.
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Affiliation(s)
- Mansureh Ghavam
- Department of Nature Engineering, Faculty of Natural Resources and Earth Sciences, University of Kashan, Kashan, Iran.
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6
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Narware J, Singh SP, Manzar N, Kashyap AS. Biogenic synthesis, characterization, and evaluation of synthesized nanoparticles against the pathogenic fungus Alternaria solani. Front Microbiol 2023; 14:1159251. [PMID: 37138620 PMCID: PMC10149959 DOI: 10.3389/fmicb.2023.1159251] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Accepted: 03/13/2023] [Indexed: 05/05/2023] Open
Abstract
In the present study, Trichoderma harzianum culture filtrate (CF) was used as a reducing and capping agent to synthesize silver nanoparticles (Ag NPs) in a quick, simple, cost-effective, and eco-friendly manner. The effects of different ratios (silver nitrate (AgNO3): CF), pH, and incubation time on the synthesis of Ag NPs were also examined. Ultraviolet-visible (UV-Vis) spectra of the synthesized Ag NPs showed a distinct surface plasmon resonance (SPR) peak at 420 nm. Spherical and monodisperse NPs were observed using scanning electron microscopy (SEM). Elemental silver (Ag) was identified in the Ag area peak indicated by energy dispersive x-ray (EDX) spectroscopy. The crystallinity of Ag NPs was confirmed by x-ray diffraction (XRD), and Fourier transform infrared (FTIR) was used to examine the functional groups present in the CF. Dynamic light scattering (DLS) revealed an average size (43.68 nm), which was reported to be stable for 4 months. Atomic force microscopy (AFM) was used to confirm surface morphology. We also investigated the in vitro antifungal efficacy of biosynthesized Ag NPs against Alternaria solani, which demonstrated a significant inhibitory effect on mycelial growth and spore germination. Additionally, microscopic investigation revealed that Ag NP-treated mycelia exhibited defects and collapsed. Apart from this investigation, Ag NPs were also tested in an epiphytic environment against A. solani. Ag NPs were found to be capable of managing early blight disease based on field trial findings. The maximum percentage of early blight disease inhibition by NPs was observed at 40 parts per million (ppm) (60.27%), followed by 20 ppm (58.68%), whereas in the case of the fungicide mancozeb (1,000 ppm), the inhibition was recorded at 61.54%.
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Affiliation(s)
- Jeetu Narware
- Department of Mycology and Plant Pathology, Institute of Agriculture Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Satyendra P. Singh
- Department of Mycology and Plant Pathology, Institute of Agriculture Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Nazia Manzar
- Molecular Biology Lab, ICAR-National Bureau of Agriculturally Important Microorganism, Mau, Uttar Pradesh, India
| | - Abhijeet Shankar Kashyap
- Molecular Biology Lab, ICAR-National Bureau of Agriculturally Important Microorganism, Mau, Uttar Pradesh, India
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7
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Boivin G, Ritcey AM, Landry V. Silver Nanoparticles as Antifungal Agents in Acrylic Latexes: Influence of the Initiator Type on Nanoparticle Incorporation and Aureobasidium pullulans Resistance. Polymers (Basel) 2023; 15:polym15061586. [PMID: 36987366 PMCID: PMC10057005 DOI: 10.3390/polym15061586] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 03/17/2023] [Accepted: 03/20/2023] [Indexed: 03/30/2023] Open
Abstract
Discoloration of wood coatings due to fungal growth negatively affects the aesthetic properties of the coatings, and new ways to control fungal growth on coatings are needed. For this reason, silver nanoparticles (AgNPs) have been incorporated in acrylic latexes as antifungal agents. Using miniemulsion polymerization, latexes were prepared with two types of initiators (hydrophilic and hydrophobic) to assess the influence of the initiator type on AgNPs dispersion, both within the latex particles and the dry film. In addition, the impact of NP dispersion on resistance to black-stain fungi (Aureobasidium pullulans) was also evaluated. Inductively coupled plasma optical emission spectroscopy (ICP-OES) analysis indicates that acrylic latexes prepared with azobisisobutyronitrile (AIBN) as the initiator contain more AgNPs than those prepared with potassium persulfate (KPS). Cryo-TEM and SEM analyses show that the distribution of the AgNPs within the polymer particles is influenced by the nature of the initiator. When AIBN, a hydrophobic initiator, is used, the AgNPs appear to be closer to the surface of the polymer particles and more evenly distributed. However, the antifungal efficiency of the AgNPs-embedded latexes against A. pullulans is found to be higher when KPS is used, despite this initiator leading to a smaller amount of incorporated AgNPs and a less uniform dispersion of the nanoparticles.
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Affiliation(s)
- Gabrielle Boivin
- Département de Chimie, Université Laval, 1045 Avenue de la Médecine, Québec City, QC G1V 0A6, Canada
- FPInnovations, 1055 rue du PEPS, Québec City, QC G1V 4C72, Canada
| | - Anna M Ritcey
- Département de Chimie, Université Laval, 1045 Avenue de la Médecine, Québec City, QC G1V 0A6, Canada
| | - Véronic Landry
- Département des Sciences du Bois et de la Forêt, Université Laval, 2425 rue de la Terrasse, Québec City, QC G1V 0A6, Canada
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8
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Silver-dendrimer nanocomposite as emerging therapeutics in anti-bacteria and beyond. Drug Resist Updat 2023; 68:100935. [PMID: 36774747 DOI: 10.1016/j.drup.2023.100935] [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: 12/26/2022] [Revised: 01/10/2023] [Accepted: 01/27/2023] [Indexed: 01/30/2023]
Abstract
To develop next-generation nanomedicine, theranostic nanotherapeutic strategies are increasingly being emphasized. In recent years, it is observed that the effective lifetime of anti-bacterial and anti-cancer agent is diminishing, which undermines the economic incentives necessary for clinical development and therapeutic applications. Thus, novel formulations ought to not only kill drug resistant strains and cancerous cells but also inhibit their formation. Recently, metallic nanoparticles [for example- silver (Ag) nanoparticles] have been widely investigated for their biomedical applications. The so-called applications necessitate the inclusion of these nanoparticles inside polymeric matrices (for example- dendrimer) leading to chemical functionalization of the metallic nanoparticles. Silver and silver nanoparticles' antibacterial activity has already been well established over years. Dendrimers due to their homogeneous highly branched structure and uniform composition are perfectly suitable for the inclusion of silver nanoparticles [Ag NPs]. Recently, the increasing trend in the development of Ag-dendrimer nanocomposites is attributed to the excellent antibacterial activity of Ag as well as dendrimer's unique properties like variable functional terminal ends and potential antibacterial effect necessarily. This review provides an informative overview regarding the numerous aspects of bactericidal and other biomedical applications of Ag-dendrimer nanocomposites, particularly emphasizing analysis of existing research and prospective worth to the pharmaceutical sector in future.
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9
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Fahy KM, Eiken MK, Baumgartner KV, Leung KQ, Anderson SE, Berggren E, Bouzos E, Schmitt LR, Asuri P, Wheeler KE. Silver Nanoparticle Surface Chemistry Determines Interactions with Human Serum Albumin and Cytotoxic Responses in Human Liver Cells. ACS OMEGA 2023; 8:3310-3318. [PMID: 36713725 PMCID: PMC9878656 DOI: 10.1021/acsomega.2c06882] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 12/19/2022] [Indexed: 06/01/2023]
Abstract
Engineered nanomaterials (ENMs) are synthesized with a diversity of surface chemistries that mediate biochemical interactions and physiological response to the particles. In this work, silver engineered nanomaterials (AgENMs) are used to evaluate the role of surface charge in protein interactions and cellular cytotoxicity. The most abundant protein in blood, human serum albumin (HSA), was interacted with 40 nm AgENMs with a range of surface-charged coatings: positively charged branched polyethyleneimine (bPEI), negatively charged citrate (CIT), and circumneutral poly(ethylene glycol) (PEG). HSA adsorption to AgENMs was monitored by UV-vis spectroscopy and dynamic light scattering, while changes to the protein structure were evaluated with circular dichroism spectroscopy. Binding affinity for citrate-coated AgENMs and HSA is largest among the three AgENM coatings; yet, HSA lost the most secondary structure upon interaction with bPEI-coated AgENMs compared to the other two coatings. HSA increased AgENM oxidative dissolution across all particle types, with the greatest dissolution for citrate-coated AgENMs. Results indicate that surface coating is an important consideration in transformation of both the particle and protein upon interaction. To connect results to cellular outcomes, we also performed cytotoxicity experiments with HepG2 cells across all three AgENM types with and without HSA. Results show that bPEI-coated AgENMs cause the greatest loss of cell viability, both with and without inclusion of HSA with the AgENMs. Thus, surface coatings on AgENMs alter both biophysical interactions with proteins and particle cytotoxicity. Within this study set, positively charged bPEI-coated AgENMs cause the greatest disruption to HSA structure and cell viability.
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Affiliation(s)
- Kira M. Fahy
- Department
of Chemistry & Biochemistry, Santa Clara
University, Santa
Clara, California95053, United States
| | - Madeline K. Eiken
- Department
of Chemistry & Biochemistry, Santa Clara
University, Santa
Clara, California95053, United States
- Department
of Bioengineering, Santa Clara University, Santa Clara, California95053, United States
| | - Karl V. Baumgartner
- Department
of Chemistry & Biochemistry, Santa Clara
University, Santa
Clara, California95053, United States
- Department
of Bioengineering, Santa Clara University, Santa Clara, California95053, United States
| | - Kaitlyn Q. Leung
- Department
of Chemistry & Biochemistry, Santa Clara
University, Santa
Clara, California95053, United States
| | - Sarah E. Anderson
- Department
of Chemistry & Biochemistry, Santa Clara
University, Santa
Clara, California95053, United States
| | - Erik Berggren
- Department
of Chemistry & Biochemistry, Santa Clara
University, Santa
Clara, California95053, United States
| | - Evangelia Bouzos
- Department
of Chemistry & Biochemistry, Santa Clara
University, Santa
Clara, California95053, United States
- Department
of Bioengineering, Santa Clara University, Santa Clara, California95053, United States
| | - Lauren R. Schmitt
- Department
of Chemistry & Biochemistry, Santa Clara
University, Santa
Clara, California95053, United States
| | - Prashanth Asuri
- Department
of Bioengineering, Santa Clara University, Santa Clara, California95053, United States
| | - Korin E. Wheeler
- Department
of Chemistry & Biochemistry, Santa Clara
University, Santa
Clara, California95053, United States
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10
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Pan Z, Liu Z, Hu X, Cui K, Cai W, Guo K. Enhancement of acetate production in hydrogen-mediated microbial electrosynthesis reactors by addition of silica nanoparticles. BIORESOUR BIOPROCESS 2023; 10:3. [PMID: 38647934 PMCID: PMC10992923 DOI: 10.1186/s40643-023-00627-6] [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: 10/27/2022] [Accepted: 01/09/2023] [Indexed: 01/21/2023] Open
Abstract
Microbial electrosynthesis (MES) is a promising technology for CO2 fixation and electrical energy storage. Currently, the low current density of MES limits its practical application. The H2-mediated and non-biofilm-driven MES could work under higher current density, but it is difficult to achieve high coulombic efficiency (CE) due to low H2 solubility and poor mass transfer. Here, we proposed to enhance the hydrogen mass transfer by adding silica nanoparticles to the reactor. At pH 7, 35 ℃ and 39 A·m- 2 current density, with the addition of 0.3wt% silica nanoparticles, the volumetric mass transfer coefficient (kLa) of H2 in the reactor increased by 32.4% (from 0.37 h- 1 to 0.49 h- 1), thereby increasing the acetate production rate and CE of the reactor by 69.8% and 69.2%, respectively. The titer of acetate in the reactor with silica nanoparticles (18.5 g·L- 1) was 56.9% higher than that of the reactor without silica nanoparticles (11.8 g·L- 1). Moreover, the average acetate production rate of the reactor with silica nanoparticles was up to 2.14 g·L- 1·d- 1 in the stable increment phase, which was much higher than the other reported reactors. These results demonstrated that the addition of silica nanoparticles is an effective approach to enhancing the performance of H2-mediated MES reactors.
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Affiliation(s)
- Zeyan Pan
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Zhuangzhuang Liu
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, China
- College of Veterinary Medicine, Northwest A&F University, Yangling, 712100, China
| | - Xiaona Hu
- School of Ecology and Environment, Zhengzhou University, Zhengzhou, 450001, China
| | - Kai Cui
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Wenfang Cai
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Kun Guo
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, China.
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11
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Sharma A, Mondal S, Ahuja T, Karmakar T, Siddhanta S. Ion-Mediated Protein Stabilization on Nanoscopic Surfaces. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:1227-1237. [PMID: 36622301 DOI: 10.1021/acs.langmuir.2c03010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
The emergence of nanoparticles in biomedical applications has made their interactions with proteins inevitable. Nanoparticles conjugated with proteins and peptide-based constructs form an integral part of nanotherapeutics and have recently shown promise in treating a myriad of diseases. The proper functioning of proteins is critical to achieve their biological functions. However, interface issues result in the denaturation of proteins, and the loss of orientation and steric hindrance can adversely affect the function of the conjugate. Furthermore, surface-induced denaturation also triggers protein aggregation, resulting in amyloid-like species. Understanding the mechanistic underpinnings of protein-nanoparticle interactions and controlling their interfacial characteristics are critical and challenging due to the complex nature of the conjugates. In this milieu, we demonstrate that ionic liquids can be suitable candidates for stabilizing protein-nanoparticle interactions by virtue of their excellent protein-preserving properties. We also probe the previously unexplored mechanism of ion-mediated stabilization of the protein molecules on the nanoparticle surface. The protein-nanoparticle conjugates consist of lysozyme and choline-based ionic liquids characterized by optical and electron microscopy techniques combined with surface-sensitive plasmon-enhanced Raman spectroscopy. Furthermore, atomistic molecular dynamics simulations of the conjugates delineate interfacial interactions of the protein molecules and the modulation by the ions, particularly the conformational changes and the dynamic correlation when the protein and specific ionic liquid molecules are adsorbed on the nanoparticle surface. The combined experimental and computational studies showed the synergistic behavior of the ions of the ionic liquids, specifically the orientation and coverage of the anions aided by the cations to control the surface interactions and hence the overall protein stability. These studies pave the way for using ionic liquids, particularly their biocompatible counterparts in nanoparticle-based complexes, as stabilizing agents for biomedical applications.
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Affiliation(s)
- Arti Sharma
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, Delhi110016, India
| | - Soumya Mondal
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, Delhi110016, India
| | - Tripti Ahuja
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, Delhi110016, India
| | - Tarak Karmakar
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, Delhi110016, India
| | - Soumik Siddhanta
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, Delhi110016, India
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Moreno Ruiz YP, de Almeida Campos LA, Alves Agreles MA, Galembeck A, Macário Ferro Cavalcanti I. Advanced Hydrogels Combined with Silver and Gold Nanoparticles against Antimicrobial Resistance. Antibiotics (Basel) 2023; 12:antibiotics12010104. [PMID: 36671305 PMCID: PMC9855178 DOI: 10.3390/antibiotics12010104] [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: 11/24/2022] [Revised: 12/21/2022] [Accepted: 01/04/2023] [Indexed: 01/10/2023] Open
Abstract
The development of multidrug-resistant (MDR) microorganisms has increased dramatically in the last decade as a natural consequence of the misuse and overuse of antimicrobials. The World Health Organization (WHO) recognizes that this is one of the top ten global public health threats facing humanity today, demanding urgent multisectoral action. The UK government foresees that bacterial antimicrobial resistance (AMR) could kill 10 million people per year by 2050 worldwide. In this sense, metallic nanoparticles (NPs) have emerged as promising alternatives due to their outstanding antibacterial and antibiofilm properties. The efficient delivery of the NPs is also a matter of concern, and recent studies have demonstrated that hydrogels present an excellent ability to perform this task. The porous hydrogel structure with a high-water retention capability is a convenient host for the incorporation of the metallic nanoparticles, providing an efficient path to deliver the NPs properly reducing bacterial infections caused by MDR pathogenic microorganisms. This article reviews the most recent investigations on the characteristics, applications, advantages, and limitations of hydrogels combined with metallic NPs for treating MDR bacteria. The mechanisms of action and the antibiofilm activity of the NPs incorporated into hydrogels are also described. Finally, this contribution intends to fill some gaps in nanomedicine and serve as a guide for the development of advanced medical products.
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Affiliation(s)
- Yolice Patricia Moreno Ruiz
- Laboratory of Microbiology and Immunology, Academic Center of Vitória (CAV), Federal University of Pernambuco (UFPE), Vitória de Santo Antão 55608-680, Pernambuco, Brazil
- Department of Fundamental Chemistry, Federal University of Pernambuco (UFPE), Av. Jorn. Aníbal Fernandes, Cidade Universitária, Recife 50740-560, Pernambuco, Brazil
| | - Luís André de Almeida Campos
- Laboratory of Microbiology and Immunology, Academic Center of Vitória (CAV), Federal University of Pernambuco (UFPE), Vitória de Santo Antão 55608-680, Pernambuco, Brazil
- Institute Keizo Asami (iLIKA), Federal University of Pernambuco (UFPE), Av. Prof. Moraes Rego, 1235, Cidade Universitária, Recife 50670-901, Pernambuco, Brazil
| | - Maria Andressa Alves Agreles
- Institute Keizo Asami (iLIKA), Federal University of Pernambuco (UFPE), Av. Prof. Moraes Rego, 1235, Cidade Universitária, Recife 50670-901, Pernambuco, Brazil
| | - André Galembeck
- Department of Fundamental Chemistry, Federal University of Pernambuco (UFPE), Av. Jorn. Aníbal Fernandes, Cidade Universitária, Recife 50740-560, Pernambuco, Brazil
| | - Isabella Macário Ferro Cavalcanti
- Laboratory of Microbiology and Immunology, Academic Center of Vitória (CAV), Federal University of Pernambuco (UFPE), Vitória de Santo Antão 55608-680, Pernambuco, Brazil
- Institute Keizo Asami (iLIKA), Federal University of Pernambuco (UFPE), Av. Prof. Moraes Rego, 1235, Cidade Universitária, Recife 50670-901, Pernambuco, Brazil
- Correspondence: ; Tel.: +55-81-98648-2081
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Lin Y, Hu J, Zhang W, Jiang L, Yi D, Rujiralai T, Ma J. Broadband single-molecule fluorescence enhancement based on self-assembled Ag@Au dimer plasmonic nanoantennas. NANOSCALE 2022; 14:17550-17560. [PMID: 36318052 DOI: 10.1039/d2nr03466b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Dimer optical antennas (OAs) enable great fluorescence enhancement and excitation volume reduction and hence potentially can be a very useful tool for single-molecule detection. The realization of broadband fluorescence enhancement with a dimer OA remains an essential step for its usage in multi-color single-molecule fluorescence (SMF) detection. Although silver dimer OAs have been shown to be able to yield broadband fluorescence enhancement over the visible spectrum, they are amenable to oxidization, hard to functionalize, and could cause cytotoxicity. To overcome these limitations, in this work, we took advantage of nano-sized silver due to its optical properties and gold due to its chemical properties and developed an ameliorated Ag@Au dimer OA in terms of its overall performance. The Ag@Au nanoparticle in the dimer OA contains a 70 nm silver core and an ultra-thin (∼1-5 nm) gold shell which play a key role in its optical responses. Furthermore, we employed three typical dyes, i.e., FAM, TAMRA and Cy5, representing the blue, yellow and red ranges, respectively, and characterized their single-molecule fluorescence enhancements in the presence of Au or Ag@Au OAs. Our results indicate that, in contrast to its Au counterpart, the Ag@Au dimer OA prepared here can greatly improve its optical response in the blue range and eventually achieve broadband fluorescence enhancement throughout almost the whole visible spectral range. Meanwhile, it also maintains good chemical stability and accessibility to functionalization. Such Ag@Au dimer OAs are thus expected to have many important applications in the future, including single-molecule sequencing and multi-color biosensing.
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Affiliation(s)
- Yunpeng Lin
- School of Physics, Sun Yat-sen University, Guangzhou 510275, P.R. China.
- State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-sen University, Guangzhou 510275, P.R. China
| | - Jinyong Hu
- School of Physics and Optoelectronics, Xiangtan University, Xiangtan 411105, P.R. China
| | - Wenbo Zhang
- School of Physics, Sun Yat-sen University, Guangzhou 510275, P.R. China.
- State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-sen University, Guangzhou 510275, P.R. China
| | - Li Jiang
- College of Science, Guilin University of Technology, Guilin 541004, P.R. China
| | - Deqi Yi
- School of Physics, Sun Yat-sen University, Guangzhou 510275, P.R. China.
- State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-sen University, Guangzhou 510275, P.R. China
| | - Thitima Rujiralai
- Division of Physical Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand
| | - Jie Ma
- School of Physics, Sun Yat-sen University, Guangzhou 510275, P.R. China.
- State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-sen University, Guangzhou 510275, P.R. China
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Derbalah A, Essa T, Kamel SM, Omara RI, Abdelfatah M, Elshaer A, Elsharkawy MM. Silver oxide nanostructures as a new trend to control strawberry charcoal rot induced by Macrophomina phaseolina. PEST MANAGEMENT SCIENCE 2022; 78:4638-4648. [PMID: 35866210 DOI: 10.1002/ps.7084] [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: 12/18/2021] [Revised: 06/03/2022] [Accepted: 07/22/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Silver oxide (Ag2 O) nanostructures were fabricated and their ability to induce antifungal activity against Macrophomina phaseolina, which causes charcoal rot disease in strawberries, was evaluated under laboratory, greenhouse and field conditions. A real-time quantitative polymerase chain reaction was used to monitor expression of defense-related genes, which is essential to evaluate the potential of the manufactured nanoparticles to promote strawberry resistance against charcoal rot. The effect of Ag2 O nanoparticles on growth characteristics in strawberry plants was also studied. RESULTS The results showed that Ag2 O significantly inhibited M. phaseolina growth compared with untreated controls under in vitro conditions. Strawberry plants treated with Ag2 O showed a significant decrease in the severity of charcoal rot disease in the greenhouse compared with untreated plants. Strawberry plants treated with Ag2 O nanoparticles expressed defense gene (PR-1) involved in the salicylic acid signaling pathways at levels three to five times higher than in the control group. Ag2 O nanoparticles significantly improved the growth and yield of the strawberry crop. CONCLUSION Use of Ag2 O nanoparticles can be considered a new strategy to control M. phaseolina and this is the first report of this effect. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Aly Derbalah
- Pesticides Chemistry and Toxicology Department, Kafrelsheikh University, 33516, Kafr Elsheikh, Egypt
| | - Tarek Essa
- Plant Pathology Research Institute, Agricultural Research Center, Giza, 12619, Egypt
| | - Said Mohamed Kamel
- Plant Pathology Research Institute, Agricultural Research Center, Giza, 12619, Egypt
| | - Reda Ibrahim Omara
- Plant Pathology Research Institute, Agricultural Research Center, Giza, 12619, Egypt
| | - Mahmoud Abdelfatah
- Physics Department, Kafrelsheikh University, 33516, Kafr Elsheikh, Egypt
| | - Abdelhamed Elshaer
- Physics Department, Kafrelsheikh University, 33516, Kafr Elsheikh, Egypt
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15
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Wu K, Li H, Cui X, Feng R, Chen W, Jiang Y, Tang C, Wang Y, Wang Y, Shen X, Liu Y, Lynch M, Long H. Mutagenesis and Resistance Development of Bacteria Challenged by Silver Nanoparticles. Antimicrob Agents Chemother 2022; 66:e0062822. [PMID: 36094196 PMCID: PMC9578424 DOI: 10.1128/aac.00628-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 08/21/2022] [Indexed: 11/20/2022] Open
Abstract
Because of their extremely broad spectrum and strong biocidal power, nanoparticles of metals, especially silver (AgNPs), have been widely applied as effective antimicrobial agents against bacteria, fungi, and so on. However, the mutagenic effects of AgNPs and resistance mechanisms of target cells remain controversial. In this study, we discover that AgNPs do not speed up resistance mutation generation by accelerating genome-wide mutation rate of the target bacterium Escherichia coli. AgNPs-treated bacteria also show decreased expression in quorum sensing (QS), one of the major mechanisms leading to population-level drug resistance in microbes. Nonetheless, these nanomaterials are not immune to resistance development by bacteria. Gene expression analysis, experimental evolution in response to sublethal or bactericidal AgNPs treatments, and gene editing reveal that bacteria acquire resistance mainly through two-component regulatory systems, especially those involved in metal detoxification, osmoregulation, and energy metabolism. Although these findings imply low mutagenic risks of nanomaterial-based antimicrobial agents, they also highlight the capacity for bacteria to evolve resistance.
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Affiliation(s)
- Kun Wu
- Institute of Evolution and Marine Biodiversity, KLMME, Ocean University of China, Qingdao, China
- Laboratory for Marine Biology and Biotechnology, Qingdao Pilot National Laboratory for Marine Science and Technology, Qingdao, China
| | - Haichao Li
- Institute of Evolution and Marine Biodiversity, KLMME, Ocean University of China, Qingdao, China
| | - Xiao Cui
- Institute of Evolution and Marine Biodiversity, KLMME, Ocean University of China, Qingdao, China
| | - Ruobing Feng
- Institute of Evolution and Marine Biodiversity, KLMME, Ocean University of China, Qingdao, China
| | - Weizhe Chen
- Institute of Evolution and Marine Biodiversity, KLMME, Ocean University of China, Qingdao, China
| | - Yuchen Jiang
- Institute of Evolution and Marine Biodiversity, KLMME, Ocean University of China, Qingdao, China
| | - Chao Tang
- Institute of Evolution and Marine Biodiversity, KLMME, Ocean University of China, Qingdao, China
| | - Yaohai Wang
- Institute of Evolution and Marine Biodiversity, KLMME, Ocean University of China, Qingdao, China
| | - Yan Wang
- Institute of Evolution and Marine Biodiversity, KLMME, Ocean University of China, Qingdao, China
| | - Xiaopeng Shen
- College of Life Sciences, Anhui Normal University, Wuhu, Anhui, China
| | - Yufei Liu
- Key Laboratory of Optoelectronic Technology & Systems, Chongqing University, Ministry of Education, Chongqing, China
| | - Michael Lynch
- Biodesign Center for Mechanisms of Evolution, Arizona State University, Tempe, Arizona, USA
| | - Hongan Long
- Institute of Evolution and Marine Biodiversity, KLMME, Ocean University of China, Qingdao, China
- Laboratory for Marine Biology and Biotechnology, Qingdao Pilot National Laboratory for Marine Science and Technology, Qingdao, China
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16
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Biogenic Synthesis of Silver Nanoparticles Using Catharanthus roseus and Its Cytotoxicity Effect on Vero Cell Lines. Molecules 2022; 27:molecules27196191. [PMID: 36234756 PMCID: PMC9572191 DOI: 10.3390/molecules27196191] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 08/30/2022] [Accepted: 09/01/2022] [Indexed: 11/17/2022] Open
Abstract
Background: Type 2 diabetes mellitus (DM2) is a chronic and sometimes fatal condition which affects people all over the world. Nanotherapeutics have shown tremendous potential to combat chronic diseases—including DM2—as they enhance the overall impact of drugs on biological systems. Greenly synthesized silver nanoparticles (AgNPs) from Catharanthus roseus methanolic extract (C. AgNPs) were examined primarily for their cytotoxic and antidiabetic effects. Methods: Characterization of C. AgNPs was performed by UV−vis spectroscopy, Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and atomic force microscopy (AFM). The C. AgNPs were trialed on Vero cell line and afterwards on an animal model (rats). Results: The C. AgNPs showed standard structural and functional characterization as revealed by FTIR and XRD analyses. The zetapotential analysis indicated stability while EDX analysis confirmed the formation of composite capping with Ag metal. The cytotoxic effect (IC50) of C. AgNPs on Vero cell lines was found to be 568 g/mL. The animal model analyses further revealed a significant difference in water intake, food intake, body weight, urine volume, and urine sugar of tested rats after treatment with aqueous extract of C. AgNPs. Moreover, five groups of rats including control and diabetic groups (NC1, PC2, DG1, DG2, and DG3) were investigated for their blood glucose and glycemic control analysis. Conclusions: The C. AgNPs exhibited positive potential on the Vero cell line as well as on experimental rats. The lipid profile in all the diabetic groups (DG1-3) were significantly increased compared with both of the control groups (p < 0.05). The present study revealed the significance of C. AgNPs in nanotherapeutics.
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17
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Vijayalakshmi A, Soundharajan R, Srinivasan H. Engineered green nanoparticles interact with Nigrospora oryzae isolated from infected leaves of Arachis hypogaea. J Basic Microbiol 2022; 62:1393-1401. [PMID: 35820162 DOI: 10.1002/jobm.202100623] [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: 11/29/2021] [Revised: 05/17/2022] [Accepted: 06/27/2022] [Indexed: 11/09/2022]
Abstract
Oilseed crop diseases are a major concern around the world, particularly in India. The synthetic fungicides not only kill the pathogen, but they also harm the host plant and beneficial microbes and on continuous usage, they decrease the soil fertility. To overcome this problem, green nanotechnology has been a greater alternative with promising benefits. The green synthesized nanoparticles from the extract of various plant parts are an effective remedy for killing the pathogens without affecting the host plants and the environment. Hence, in our study silver nanoparticles were synthesized from Fennel seed (Foeniculum vulgare) extract. The synthesis of nanoparticles was confirmed using UV-vis, Fourier transform infrared, dynamic light scattering, zeta potential, and scanning electron microscopic analysis. The in vitro antifungal study was carried out and revealed that the nanoparticles had high efficacy against the isolated phytopathogen Nigrospora oryzae which causes tikka disease in Arachis hypogaea plants. Hence, F. vulgare seed nanoparticles can be used as an effective alternative to synthetic fungicides without causing any deleterious effect on soil microflora or the environment.
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Affiliation(s)
- Architha Vijayalakshmi
- School of Life Sciences, B. S. Abdur Rahman Crescent Institute of Science and Technology, Chennai, Tamil Nadu, India
| | - Ranjani Soundharajan
- School of Life Sciences, B. S. Abdur Rahman Crescent Institute of Science and Technology, Chennai, Tamil Nadu, India
| | - Hemalatha Srinivasan
- School of Life Sciences, B. S. Abdur Rahman Crescent Institute of Science and Technology, Chennai, Tamil Nadu, India
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18
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Sabra MA, Alaidaroos BA, Jastaniah SD, Heflish AI, Ghareeb RY, Mackled MI, El-Saadony MT, Abdelsalam NR, Conte-Junior CA. Comparative Effect of Commercially Available Nanoparticles on Soil Bacterial Community and “Botrytis fabae” Caused Brown Spot: In vitro and in vivo Experiment. Front Microbiol 2022. [DOI: 10.3389/fmicb.2022.934031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
This study revealed the possible effects of various levels of silver nanoparticle (AgNP) application on plant diseases and soil microbial diversity. It investigated the comparison between the application of AgNPs and two commercial nanoproducts (Zn and FeNPs) on the rhizobacterial population and Botrytis fabae. Two experiments were conducted. The first studied the influence of 13 AgNP concentration on soil bacterial diversity besides two other commercial nanoparticles, ZnNPs (2,000 ppm) and FeNPs (2,500 ppm), used for comparison and application on onion seedlings. The second experiment was designed to determine the antifungal activity of previous AgNP concentrations (150, 200, 250, 300, 400, and 500 ppm) against B. fabae, tested using commercial fungicide as control. The results obtained from both experiments revealed the positive impact of AgNPs on the microbial community, representing a decrease in both the soil microbial biomass and the growth of brown spot disease, affecting microbial community composition, including bacteria, fungi, and biological varieties. In contrast, the two commercial products displayed lower effects compared to AgNPs. This result clearly showed that the AgNPs strongly inhibited the plant pathogen B. fabae growth and development, decreasing the number of bacteria (cfu/ml) and reducing the rhizosphere. Using AgNPs as an antimicrobial agent in the agricultural domain is recommended.
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19
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Chen F, Luo Y, Liu X, Zheng Y, Han Y, Yang D, Wu S. 2D Molybdenum Sulfide-Based Materials for Photo-Excited Antibacterial Application. Adv Healthc Mater 2022; 11:e2200360. [PMID: 35385610 DOI: 10.1002/adhm.202200360] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Indexed: 01/01/2023]
Abstract
Bacterial infections have seriously threatened human health and the abuse of natural or artificial antibiotics leads to bacterial resistance, so development of a new generation of antibacterial agents and treatment methods is urgent. 2D molybdenum sulfide (MoS2 ) has good biocompatibility, high specific surface area to facilitate surface modification and drug loading, adjustable energy bandgap, and high near-infrared photothermal conversion efficiency (PCE), so it is often used for antibacterial application through its photothermal or photodynamic effects. This review comprehensively summarizes and discusses the fabrication processes, structural characteristics, antibacterial performance, and the corresponding mechanisms of MoS2 -based materials as well as their representative antibacterial applications. In addition, the outlooks on the remaining challenges that should be addressed in the field of MoS2 are also proposed.
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Affiliation(s)
- Fangqian Chen
- Biomedical Materials Engineering Research Center Collaborative Innovation Center for Advanced Organic Chemical Materials Co‐constructed by the Province and Ministry Hubei Key Laboratory of Polymer Materials Ministry‐of‐Education Key Laboratory for the Green Preparation and Application of Functional Materials School of Materials Science and Engineering Hubei University Wuhan 430062 China
| | - Yue Luo
- Biomedical Materials Engineering Research Center Collaborative Innovation Center for Advanced Organic Chemical Materials Co‐constructed by the Province and Ministry Hubei Key Laboratory of Polymer Materials Ministry‐of‐Education Key Laboratory for the Green Preparation and Application of Functional Materials School of Materials Science and Engineering Hubei University Wuhan 430062 China
| | - Xiangmei Liu
- Biomedical Materials Engineering Research Center Collaborative Innovation Center for Advanced Organic Chemical Materials Co‐constructed by the Province and Ministry Hubei Key Laboratory of Polymer Materials Ministry‐of‐Education Key Laboratory for the Green Preparation and Application of Functional Materials School of Materials Science and Engineering Hubei University Wuhan 430062 China
| | - Yufeng Zheng
- School of Materials Science & Engineering Peking University Beijing 100871 China
| | - Yong Han
- State Key Laboratory for Mechanical Behavior of Materials School of Materials Science and Engineering Xi'an Jiaotong University Xi'an Shanxi 710049 China
| | - Dapeng Yang
- College of Chemical Engineering and Materials Science Quanzhou Normal University Quanzhou Fujian Province 362000 China
| | - Shuilin Wu
- School of Materials Science & Engineering Peking University Beijing 100871 China
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20
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Tripathi N, Goshisht MK. Recent Advances and Mechanistic Insights into Antibacterial Activity, Antibiofilm Activity, and Cytotoxicity of Silver Nanoparticles. ACS APPLIED BIO MATERIALS 2022; 5:1391-1463. [PMID: 35358388 DOI: 10.1021/acsabm.2c00014] [Citation(s) in RCA: 60] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The substantial increase in multidrug-resistant (MDR) pathogenic bacteria is a major threat to global health. Recently, the Centers for Disease Control and Prevention reported possibilities of greater deaths due to bacterial infections than cancer. Nanomaterials, especially small-sized (size ≤10 nm) silver nanoparticles (AgNPs), can be employed to combat these deadly bacterial diseases. However, high reactivity, instability, susceptibility to fast oxidation, and cytotoxicity remain crucial shortcomings for their uptake and clinical application. In this review, we discuss various AgNPs-based approaches to eradicate bacterial infections and provide comprehensive mechanistic insights and recent advances in antibacterial activity, antibiofilm activity, and cytotoxicity (both in vitro and in vivo) of AgNPs. The mechanistic of antimicrobial activity involves four steps: (i) adhesion of AgNPs to cell wall/membrane and its disruption; (ii) intracellular penetration and damage; (iii) oxidative stress; and (iv) modulation of signal transduction pathways. Numerous factors affecting the bactericidal activity of AgNPs such as shape, size, crystallinity, pH, and surface coating/charge have also been described in detail. The review also sheds light on antimicrobial photodynamic therapy and the role of AgNPs versus Ag+ ions release in bactericidal activities. In addition, different methods of synthesis of AgNPs have been discussed in brief.
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Affiliation(s)
- Neetu Tripathi
- Department of Chemistry, Guru Nanak Dev University, Amritsar, Punjab 143005, India
| | - Manoj Kumar Goshisht
- Department of Chemistry, Government Naveen College Tokapal, Bastar, Chhattisgarh 494442, India
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21
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Guimarães B, Gomes SIL, Scott-Fordsmand JJ, Amorim MJB. Impacts of Longer-Term Exposure to AuNPs on Two Soil Ecotoxicological Model Species. TOXICS 2022; 10:toxics10040153. [PMID: 35448414 PMCID: PMC9032579 DOI: 10.3390/toxics10040153] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 03/15/2022] [Accepted: 03/18/2022] [Indexed: 12/04/2022]
Abstract
The production, use and disposal of nanoparticles (NPs) has been increasing continuously. Due to its unique properties, such as a high resistance to oxidation, gold NPs (AuNPs) are persistent in the environment, including the terrestrial, one of the major sinks of NPs. The present study aimed to assess the effects of AuNPs (from 10 to 1000 mg/kg) on two OECD standard ecotoxicological soil model species, Enchytraeus crypticus and Folsomia candida, based on the reproduction test (28 days) and on a longer-term exposure (56 days), and survival, reproduction, and size were assessed. AuNPs caused no significant hazard to F. candida, but for E. crypticus the lowest tested concentrations (10 and 100 mg AuNPs/kg) reduced reproduction. Further, AuNPs’ toxicity increased from the 28th to the 56th day mainly to F. candida, as observed in animals’ size reduction. Therefore, longer-term exposure tests are recommended as these often reveal increased hazards, not predicted when based on shorter exposures. Additionally, special attention should be given to the higher hazard of low concentrations of NPs, compared to higher concentrations.
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Affiliation(s)
- Bruno Guimarães
- Department of Biology & Centre for Environmental and Marine Studies (CESAM), University of Aveiro, 3810-193 Aveiro, Portugal; (B.G.); (S.I.L.G.)
| | - Susana I. L. Gomes
- Department of Biology & Centre for Environmental and Marine Studies (CESAM), University of Aveiro, 3810-193 Aveiro, Portugal; (B.G.); (S.I.L.G.)
| | - Janeck J. Scott-Fordsmand
- Department of Ecoscience, Aarhus University, Vejlsovej 25, P.O. Box 314, DK-8600 Silkeborg, Denmark;
| | - Mónica J. B. Amorim
- Department of Biology & Centre for Environmental and Marine Studies (CESAM), University of Aveiro, 3810-193 Aveiro, Portugal; (B.G.); (S.I.L.G.)
- Correspondence:
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22
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Recent Advancements in Plant-Derived Nanomaterials Research for Biomedical Applications. Processes (Basel) 2022. [DOI: 10.3390/pr10020338] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Engineering, physics, chemistry, and biology are all involved in nanotechnology, which comprises a wide variety of multidisciplinary scientific field devices. The holistic utilization of metallic nanoparticles in the disciplines of bio-engineering and bio-medicine has attracted a great deal of attention. Medical nanotechnology research can offer immense health benefits for humans. While the advantages of developing nanomaterials have been well documented, it is precisely apparent that there are still some major issues that remain unattended to those need to be resolved immediately so as to ensure that they do not adversely affect living organisms in any manner. The existence of nanoparticles gives them particular value in biology and materials science, as an emerging scientific field, with multiple applications in science and technology, especially with numerous frontiers in the development of new materials. Presented here is a review of recent noteworthy developments regarding plant-derived nanomaterials and their use in the development of medicine and biomedical applications around the world.
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Bhatt S, Vyas G, Paul P. Rosmarinic Acid-Capped Silver Nanoparticles for Colorimetric Detection of CN - and Redox-Modulated Surface Reaction-Aided Detection of Cr(VI) in Water. ACS OMEGA 2022; 7:1318-1328. [PMID: 35036793 PMCID: PMC8757454 DOI: 10.1021/acsomega.1c05946] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Accepted: 12/14/2021] [Indexed: 05/14/2023]
Abstract
Rosmarinic acid-capped silver nanoparticles (Ro-AgNPs) were prepared and applied as a probe for selective colorimetric detection of cyanide (CN-) and chromium(VI) [Cr(VI)] under different conditions in aqueous media. The carbon atom of CN- interacts with the AgNPs, and the carbon atom donates electrons from the HOMO to the vacant orbitals of the coordinatively unsaturated surface atom (Ag0). After donating electrons, CN- attached onto the surface of the nanoparticles becomes very reactive and interacts with dissolved oxygen and generates reactive oxygen species (ROS) such as superoxide (O2 -), singlet oxygen (1O2), and so forth. In this process, Ag0 oxidizes to Ag+ and combines with CN- forming water-insoluble AgCN, and the ROS (O2 -) formed reacts with Ag/Ag+ to form Ag2O. The oxidation of Ag0 to Ag+ resulted in dissolution of AgNPs, which causes disappearance of the surface plasmon resonance band and color change from yellow to colorless. For detection of Cr(VI), ascorbic acid and CN- were added first; the ascorbic acid replaced the rosmarinic acid and then reduced the added Cr(VI) to Cr(III), and, in this process, ascorbic acid was oxidized to dehydroascorbic acid, which moved away from the nanoparticles' surface. CN- then interacted with the surface Ag0 atom, got activated, and interacted with dissolved oxygen forming Ag+ and ROS, which then followed the same process as described for CN- to form AgCN and Ag2O with a color change. The limits of detection were found to be 0.01 and 0.03 μM for CN- and Cr(VI), respectively. The material was also used for sensing CN- and Cr(VI) in real samples, and the results obtained were satisfactory. For field application, agarose-based strips were prepared by immobilizing the nanoparticles onto the agarose film and successfully used for the detection of CN- and Cr(VI) in water.
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Affiliation(s)
- Shreya Bhatt
- Analytical
and Environmental Science Division & Centralized Instrument Facility, CSIR-Central Salt and Marine Chemicals Research Institute, G. B. Marg, Bhavnagar 364002, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Gaurav Vyas
- Analytical
and Environmental Science Division & Centralized Instrument Facility, CSIR-Central Salt and Marine Chemicals Research Institute, G. B. Marg, Bhavnagar 364002, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Parimal Paul
- Analytical
and Environmental Science Division & Centralized Instrument Facility, CSIR-Central Salt and Marine Chemicals Research Institute, G. B. Marg, Bhavnagar 364002, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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24
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Bapat MS, Singh H, Shukla SK, Singh PP, Vo DVN, Yadav A, Goyal A, Sharma A, Kumar D. Evaluating green silver nanoparticles as prospective biopesticides: An environmental standpoint. CHEMOSPHERE 2022; 286:131761. [PMID: 34375828 DOI: 10.1016/j.chemosphere.2021.131761] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Revised: 07/12/2021] [Accepted: 07/30/2021] [Indexed: 06/13/2023]
Abstract
The current method of agriculture entails the usage of excessive amounts of pesticides and fertilizers. The blatant use of conventional pesticides and fertilizers over several decades has led to their bioaccumulation with adverse effects on soil biodiversity and the development of resistance by pests. With the decline in clinically useful antibiotics and increase in multi drug resistant microbes, it is imperative to develop new and effective antimicrobial therapies. Growing awareness and demand for efficacious biorational pesticides are on the rise. Silver nanoparticles are widely known antimicrobials and have been in use for several purposes for a long time. This work reviews the implications of applying silver nanoparticles in agriculture and their possible consequences. The physiological and biochemical changes in plants due to the uptake of silver nanoparticles as a consequence of its morphology, capping biomolecules and method of application are comprehensively discussed in this review article. Studies on tolerance levels or stress due to silver nanoparticles by variation in concentration/doses on diverse flora and fauna are also analyzed here. Further, phytotoxicity and genotoxicity due to the metal as well as its transformation in soil, water and sludge are taken into account. We also gauge the potential of biogenic silver nanoparticles-viable antimicrobial agents for enhanced applications in agriculture as biopesticides.
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Affiliation(s)
- Malini S Bapat
- Cummins College of Engineering for Women, Affiliated to Savitribai Phule Pune University, Pune, 411052, India.
| | - Hema Singh
- Defence Institute of Advanced Technology, Girinagar, Pune, 411025, India
| | - Sudheesh K Shukla
- Department of Biomedical Engineering, School of Biological Engineering and Life Sciences, Shobhit University, Meerut, 250110, India
| | | | - Dai-Viet N Vo
- Institute of Environmental Sciences, Nguyen Tat Thanh University, Ho Chi Minh City, 755414, Viet Nam
| | - Alpa Yadav
- Department of Applied Chemistry, School of Vocational Studies & Applied Sciences, Gautam Budha University, Greater Noida, Uttar Pradesh, 201308, India
| | - Abhineet Goyal
- School of Bioengineering and Biosciences, Lovely Professional University, Phagwara, Punjab, 144411, India
| | - Ajit Sharma
- School of Chemical Engineering and Physical Science, Lovely Professional University, Phagwara, Punjab, 144411, India
| | - Deepak Kumar
- School of Chemical Engineering and Physical Science, Lovely Professional University, Phagwara, Punjab, 144411, India.
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25
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Khina AG, Krutyakov YA. Similarities and Differences in the Mechanism of Antibacterial Action of Silver Ions and Nanoparticles. APPL BIOCHEM MICRO+ 2021. [DOI: 10.1134/s0003683821060053] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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26
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Hajipour MJ, Saei AA, Walker ED, Conley B, Omidi Y, Lee K, Mahmoudi M. Nanotechnology for Targeted Detection and Removal of Bacteria: Opportunities and Challenges. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:e2100556. [PMID: 34558234 PMCID: PMC8564466 DOI: 10.1002/advs.202100556] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 08/06/2021] [Indexed: 05/04/2023]
Abstract
The emergence of nanotechnology has created unprecedented hopes for addressing several unmet industrial and clinical issues, including the growing threat so-termed "antibiotic resistance" in medicine. Over the last decade, nanotechnologies have demonstrated promising applications in the identification, discrimination, and removal of a wide range of pathogens. Here, recent insights into the field of bacterial nanotechnology are examined that can substantially improve the fundamental understanding of nanoparticle and bacteria interactions. A wide range of developed nanotechnology-based approaches for bacterial detection and removal together with biofilm eradication are summarized. The challenging effects of nanotechnologies on beneficial bacteria in the human body and environment and the mechanisms of bacterial resistance to nanotherapeutics are also reviewed.
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Affiliation(s)
- Mohammad J. Hajipour
- Department of Radiology and Precision Health ProgramMichigan State UniversityEast LansingMI48824USA
| | - Amir Ata Saei
- Division of Physiological Chemistry IDepartment of Medical Biochemistry and BiophysicsKarolinska InstitutetStockholm171 65Sweden
| | - Edward D. Walker
- Department of EntomologyMichigan State UniversityEast LansingMI48824USA
- Department of Microbiology and Molecular GeneticsMichigan State UniversityEast LansingMI48824USA
| | - Brian Conley
- Department of Chemistry and Chemical BiologyRutgersThe State University of New JerseyPiscatawayNJ08854USA
| | - Yadollah Omidi
- Department of Pharmaceutical SciencesCollege of PharmacyNova Southeastern UniversityFort LauderdaleFL33328USA
| | - Ki‐Bum Lee
- Department of Chemistry and Chemical BiologyRutgersThe State University of New JerseyPiscatawayNJ08854USA
| | - Morteza Mahmoudi
- Department of Radiology and Precision Health ProgramMichigan State UniversityEast LansingMI48824USA
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27
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Liu Y, Li C, Luo S, Wang X, Zhang Q, Wu H. Inter-transformation between silver nanoparticles and Ag + induced by humic acid under light or dark conditions. ECOTOXICOLOGY (LONDON, ENGLAND) 2021; 30:1376-1385. [PMID: 33068202 DOI: 10.1007/s10646-020-02284-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 09/29/2020] [Indexed: 06/11/2023]
Abstract
The fate and toxicity of silver nanoparticles (AgNPs) and ions in water bodies is largely determined by the natural organic matter (NOM)-mediated redox cycling. However, the process of NOM-mediated redox cycling in the day/night cycles remains elusive. In this study, the inter-transformation between AgNPs and Ag+ ion caused by humic acid (HA) was investigated under controlled light and dark conditions. It was shown that HA induced the reduction of Ag+ into AgNPs in simulated sunlight, and also oxidize AgNPs to release Ag+ in darkness. Kinetics data demonstrated that the rates of AgNPs formation and dissolution increased along with the increment of HA concentrations. Along with the pH increase, the reduction of Ag+ accelerated, but the oxidative dissolution of AgNPs was inhibited. In day-night cycles, the AgNPs and Ag+ concentrations exhibited similar wave-shaped change curves. The peaks of AgNPs and Ag+ ion appeared at 7 p.m. and 7 a.m., respectively. The toxicity of AgNPs/Ag+ to Escherichia coli was determined primarily by the concentration of dissolved Ag+, but also affected by the particle-specific toxicity. The dual role of HA implied that previous reports about the photo-reduction of Ag+ to AgNPs by NOM should be reconsidered, and the oxidizability of HA in darkness strongly affect the transformation and toxicity of AgNPs in water.
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Affiliation(s)
- Yujia Liu
- Soil and Fertilizer Institute of Hunan Province, Hunan Academy of Agricultural Sciences, 401125, Changsha, China
- College of Resources and Environment, Hunan Agricultural University, 410128, Changsha, China
| | - Chao Li
- Soil and Fertilizer Institute of Hunan Province, Hunan Academy of Agricultural Sciences, 401125, Changsha, China
| | - Si Luo
- College of Resources and Environment, Hunan Agricultural University, 410128, Changsha, China
| | - Xi Wang
- College of Resources and Environment, Hunan Agricultural University, 410128, Changsha, China
| | - Qingmei Zhang
- Hunan Provincial Environmental Protection Air Compound Pollution Prevention Engineering Technology Center, Hunan Research Academy of Environmental Science, 410004, Changsha, China.
| | - Haiyong Wu
- Soil and Fertilizer Institute of Hunan Province, Hunan Academy of Agricultural Sciences, 401125, Changsha, China.
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28
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Wu X, Li C, Zhou Z, Nie X, Chen Y, Zhang Y, Cao H, Liu B, Zhang N, Said Z, Debnath S, Jamil M, Ali HM, Sharma S. Circulating purification of cutting fluid: an overview. THE INTERNATIONAL JOURNAL, ADVANCED MANUFACTURING TECHNOLOGY 2021; 117:2565-2600. [PMID: 34465936 PMCID: PMC8390089 DOI: 10.1007/s00170-021-07854-1] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Accepted: 08/08/2021] [Indexed: 05/04/2023]
Abstract
Cutting fluid has cooling and lubricating properties and is an important part of the field of metal machining. Owing to harmful additives, base oils with poor biodegradability, defects in processing methods, and unreasonable emissions of waste cutting fluids, cutting fluids have serious pollution problems, which pose challenges to global carbon emissions laws and regulations. However, the current research on cutting fluid and its circulating purification technique lacks systematic review papers to provide scientific technical guidance for actual production. In this study, the key scientific issues in the research achievements of eco-friendly cutting fluid and waste fluid treatment are clarified. First, the preparation and mechanism of organic additives are summarized, and the influence of the physical and chemical properties of vegetable base oils on lubricating properties is analyzed. Then, the process characteristics of cutting fluid reduction supply methods are systematically evaluated. Second, the treatment of oil mist and miscellaneous oil, the removal mechanism and approach of microorganisms, and the design principles of integrated recycling equipment are outlined. The conclusion is concluded that the synergistic effect of organic additives, biodegradable vegetable base oils and recycling purification effectively reduces the environmental pollution of cutting fluids. Finally, in view of the limitations of the cutting fluid and its circulating purification technique, the prospects of amino acid additive development, self-adapting jet parameter supply system, matching mechanism between processing conditions and cutting fluid are put forward, which provides the basis and support for the engineering application and development of cutting fluid and its circulating purification.
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Affiliation(s)
- Xifeng Wu
- School of Mechanical and Automotive Engineering, Qingdao University of Technology, Qingdao, 266520 China
| | - Changhe Li
- School of Mechanical and Automotive Engineering, Qingdao University of Technology, Qingdao, 266520 China
| | - Zongming Zhou
- Hanergy (Qingdao) Lubrication Technology Co., Ltd., Qingdao, 266200 China
| | - Xiaolin Nie
- Nanjing Kerun Lubricants Co., Ltd., Nanjing, 211106 China
| | - Yun Chen
- Chengdu Tool Research Institute Co., Ltd., Chengdu, 610500 China
| | - Yanbin Zhang
- School of Mechanical and Automotive Engineering, Qingdao University of Technology, Qingdao, 266520 China
| | - Huajun Cao
- School of Mechanical Engineering, Chongqing University, Chongqing, 400044 China
| | - Bo Liu
- Sichuan Future Aerospace Industry LLC., Shifang, 618400 China
| | - Naiqing Zhang
- Shanghai Jinzhao Energy Saving Technology Co., Ltd., Shanghai, 200436 China
| | - Zafar Said
- Department of Sustainable and Renewable Energy Engineering, University of Sharjah, Sharjah, 27272 United Arab Emirates
| | - Sujan Debnath
- Mechanical Engineering Department, Curtin University, 98009 Miri, Malaysia
| | - Muhammad Jamil
- College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016 China
| | - Hafiz Muhammad Ali
- Mechanical Engineering Department, King Fahd University of Petroleum and Minerals, Dhahran, 31261 Saudi Arabia
| | - Shubham Sharma
- Department of Mechanical Engineering and Advanced Materials Science, Council of Scientific and Industrial Research (CSIR) - Central Leather Research Institute (CLRI), Regional Center for Extension and Development, Jalandhar, ,144021 India
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29
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Selvido DI, Bhattarai BP, Riddhabhaya A, Vongsawan K, Arunpraphan S, Wongsirichat N. A Review on the Application of Silver Nanoparticles in Oral and Maxillofacial Surgery. Eur J Dent 2021; 15:782-787. [PMID: 34428852 PMCID: PMC8630956 DOI: 10.1055/s-0041-1731589] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Silver nanoparticles (AgNPs) have been taken advantage of in dentistry because of their good antibacterial resistance and self-sustaining potential. However, in oral and maxillofacial surgery and implantology, there is a lesser amount of evidence. The few pieces of evidence need to be accentuated for possible amplification of its use in the dental setting. AgNPs in oral and maxillofacial surgery can be used in wound healing, bone healing, extractions, guided tissue regeneration, apical surgeries, oral cancer, and dental implants. This review aims to feature the utilization and application of AgNPs in oral and maxillofacial surgery and implant dentistry, emphasizing its need for potential future development in clinical settings.
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Affiliation(s)
| | | | - Apiwat Riddhabhaya
- International College of Dentistry, Walailak University, Bangkok, Thailand
| | - Kadkao Vongsawan
- International College of Dentistry, Walailak University, Bangkok, Thailand
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30
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Agnihotri AS, Fatima Z, Hameed S, Nidhin M. Highly Surface Active Anisotropic Silver Nanoparticles as Antimicrobial Agent Against Human Pathogens,
Mycobacterium smegmatis
and
Candida albicans. ChemistrySelect 2021. [DOI: 10.1002/slct.202101250] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Ananya S. Agnihotri
- Department of Chemistry CHRIST (Deemed to be University) Hosur road Bengaluru 560029 India
| | - Zeeshan Fatima
- Amity Institute of Biotechnology Amity University Haryana, Amity Education Valley Gurugram 122413 India
| | - Saif Hameed
- Amity Institute of Biotechnology Amity University Haryana, Amity Education Valley Gurugram 122413 India
| | - M. Nidhin
- Department of Chemistry CHRIST (Deemed to be University) Hosur road Bengaluru 560029 India
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31
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Zewde B, Atoyebi O, Gugssa A, Gaskell KJ, Raghavan D. An Investigation of the Interaction between Bovine Serum Albumin-Conjugated Silver Nanoparticles and the Hydrogel in Hydrogel Nanocomposites. ACS OMEGA 2021; 6:11614-11627. [PMID: 34056317 PMCID: PMC8154021 DOI: 10.1021/acsomega.1c00834] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 03/31/2021] [Indexed: 06/12/2023]
Abstract
Nanocomposite hydrogels are attracting significant interest due to their potential use in drug delivery systems and tissue scaffolds. Stimuli-responsive hydrogel nanocomposites are of particular interest due to sustained release of therapeutic agents from the hydrogel. However, challenges such as controlled release of therapeutic agents exist because of limited understanding of the interactions between the therapeutic agent and the hydrogel. To investigate the interaction, we synthesize a hydrogel nanocomposite by crosslinking the hydrogel precursors (tetrazine-modified polyethylene glycol and norbornene-modified hyaluronic acid) using click chemistry while bovine serum albumin-capped silver nanoparticles were encapsulated in situ in the matrix. The interaction between the nanoparticles and the hydrogel was studied by a combination of spectroscopic techniques. X-ray photoelectron spectroscopy results suggest that the hydrogel molecule rearranges so that polyethylene glycol is pointing up toward the surface while hyaluronic acid folds to interact with bovine serum albumin of the nanoparticles. Hyaluronic acid, facing inward, may interact with the nanoparticle via hydrogen bonding. The hydrogel nanocomposite showed antibacterial activity against Gram-positive/Gram-negative bactericides, supporting time-based nanoparticle release results. Our findings about interactions between the nanoparticles and the hydrogel can be useful in the formulation of next generation of hydrogel nanocomposites.
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Affiliation(s)
- Berhanu Zewde
- Department
of Chemistry, Howard University, Washington, D.C. 20059, United States
| | - Olufolasade Atoyebi
- Department
of Chemistry, Howard University, Washington, D.C. 20059, United States
| | - Ayele Gugssa
- Department
of Biology, Howard University, Washington, D.C. 20059, United States
| | - Karen J. Gaskell
- Department
of Chemistry, University of Maryland College
Park, College Park, Maryland 20742, United
States
| | - Dharmaraj Raghavan
- Department
of Chemistry, Howard University, Washington, D.C. 20059, United States
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32
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Rossbach LM, Oughton DH, Maremonti E, Eide DM, Brede DA. Impact of multigenerational exposure to AgNO 3 or NM300K Ag NPs on antioxidant defense and oxidative stress in Caenorhabditis elegans. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 216:112178. [PMID: 33812211 DOI: 10.1016/j.ecoenv.2021.112178] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 03/17/2021] [Accepted: 03/19/2021] [Indexed: 06/12/2023]
Abstract
Adaptation of the nematode Caenorhabditis elegans towards NM300K silver nanoparticles (Ag NPs) has previously been demonstrated. In the current study, the sensitivity to a range of secondary stressors (CeO2 NP, Ce3+, Cu2+, Cd2+, and Paraquat) following the multigenerational exposure to silver nanoparticles (Ag NPs NM300K) or AgNO3 was investigated. This revealed improved tolerance to the ROS inducer Paraquat with higher fecundity after pre-exposure to Ag NP, indicating an involvement of reactive oxygen species (ROS) metabolism in the adaptive response to NM300K. The potential contribution of the antioxidant defenses related to adaptive responses was investigated across six generations of exposure using the sod-1::GFP reporter (GA508), and the Grx1-roGFP2 (GRX) biosensor strains. Results showed an increase in sod-1 expression by the F3 generation, accompanied by a reduction of GSSG/GSH ratios, from both AgNO3 and Ag NP exposures. Continuous exposure to AgNO3 and Ag NP until the F6 generation resulted in a decreased sod-1 expression, with a concomitant increase in GSSG/GSH ratios. The results thus show that despite an initial enhancement, the continuous exposure to Ag caused a severe impairment of the antioxidant defense capacity in C. elegans.
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Affiliation(s)
- Lisa M Rossbach
- Norwegian University of Life Sciences, Faculty of Environmental Sciences and Natural Resource Management, P.O. BOX 5003 NMBU, No-1432 Ås, Norway.
| | - Deborah H Oughton
- Norwegian University of Life Sciences, Faculty of Environmental Sciences and Natural Resource Management, P.O. BOX 5003 NMBU, No-1432 Ås, Norway
| | - Erica Maremonti
- Norwegian University of Life Sciences, Faculty of Environmental Sciences and Natural Resource Management, P.O. BOX 5003 NMBU, No-1432 Ås, Norway
| | - Dag M Eide
- Norwegian Institute of Public Health, Lovisenberggata 8, 0456 Oslo, Norway
| | - Dag A Brede
- Norwegian University of Life Sciences, Faculty of Environmental Sciences and Natural Resource Management, P.O. BOX 5003 NMBU, No-1432 Ås, Norway
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33
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Mohamed HI, Abd-Elsalam KA, Tmam AM, Sofy MR. Silver-based nanomaterials for plant diseases management: Today and future perspectives. SILVER NANOMATERIALS FOR AGRI-FOOD APPLICATIONS 2021:495-526. [DOI: 10.1016/b978-0-12-823528-7.00031-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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34
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Takahashi C, Yamada T, Yagi S, Murai T, Muto S. Preparation of silver-decorated Soluplus® nanoparticles and antibacterial activity towards S. epidermidis biofilms as characterized by STEM-CL spectroscopy. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 121:111718. [PMID: 33579506 DOI: 10.1016/j.msec.2020.111718] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 11/03/2020] [Accepted: 11/06/2020] [Indexed: 01/07/2023]
Abstract
Biofilm infections present a serious problem because antibacterial drugs are not effective against mature biofilms or biofilms formed by drug-resistant bacteria. To address this issue, we developed a drug delivery system based on metal-decorated polymeric particles. Polyvinyl caprolactam-polyvinyl acetate-polyethylene glycol graft copolymer (Soluplus®) is an amphiphilic polymer used in biomedical formulations, while silver nanoparticles are widely acknowledged to have high antibacterial activity. We prepared silver-decorated Soluplus® micelle nanoparticles with high antibacterial activity using the emulsion solvent diffusion method. Decoration of Soluplus® micelles with silver nanoparticles was found to increase their antibacterial activity. Scanning transmission electron microscopy-cathodoluminescence (STEM-CL) spectroscopy allows imaging of the spatial distribution of labeled targets and the chemical identification of materials. However, STEM-CL spectroscopy of fragile polymer materials is challenging. We optimized the STEM-CL spectroscopy technique to determine the distribution of silver nanoparticles in Soluplus® micelles. Additionally, the surface plasmon properties of the silver nanoparticles were successfully characterized without deactivation. The developed silver-decorated Soluplus® nanoparticles were effective against biofilm infections and have the potential to be applied for other biofilm-related diseases. Additionally, the optimized STEM-CL spectroscopy technique is expected to contribute to the analysis and imaging of fragile polymer materials, as well as other soft materials such as cells and tissues.
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Affiliation(s)
- Chisato Takahashi
- Magnetic Powder Metallurgy Research Center, National Institute of Advanced Industrial Science and Technology, 2266-98, Anagahora, Shimoshidami, Moriyama-ku, Nagoya, Aichi 463-8560, Japan; Laboratoire Matériaux et Phénomènes Quantiques, Université de Paris, Bâtiment Condorcet, 10 rue Alice Domon et Léonie Duquet, Case courrier 7021, 75205 Paris CEDEX 13, France.
| | - Tomomi Yamada
- Pharmaceutical Engineering, School of Pharmacy, Aichi Gakuin University, 1-100, Kusumoto-cho, Chikusa-ku, Nagoya, Aichi 464-8650, Japan
| | - Shinya Yagi
- Institute of Materials and Systems for Sustainability, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8601, Japan
| | - Takaaki Murai
- Aichi Synchrotron Radiation Center, 250-3 Minamiyamaguchi-cho, Seto, Aichi 489-0965, Japan
| | - Shunsuke Muto
- Institute of Materials and Systems for Sustainability, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8601, Japan
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35
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Lakkim V, Reddy MC, Pallavali RR, Reddy KR, Reddy CV, Inamuddin, Bilgrami AL, Lomada D. Green Synthesis of Silver Nanoparticles and Evaluation of Their Antibacterial Activity against Multidrug-Resistant Bacteria and Wound Healing Efficacy Using a Murine Model. Antibiotics (Basel) 2020; 9:E902. [PMID: 33322213 PMCID: PMC7763323 DOI: 10.3390/antibiotics9120902] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 12/07/2020] [Accepted: 12/10/2020] [Indexed: 12/24/2022] Open
Abstract
Green nanotechnology has significant applications in various biomedical science fields. In this study, green-synthesized silver nanoparticles, prepared by using Catharanthus roseus and Azadirachta indica extracts, were characterized using UV-Vis spectroscopy, dynamic light scattering, X-ray diffraction, scanning electron microscopy, and transmission electron microscopy. Silver nanoparticles (Ag NPs) synthesized from leaf extracts of C. roseus and A. indica effectively inhibited the growth of multidrug-resistant (MDR) bacteria isolated from patients with septic wound infections. The maximum bacteriolytic activity of the green-synthesized Ag NPs of C. roseus and A. indica against the MDR bacterium K. Pneumoniae was shown by a zone of inhibition of 19 and 16 mm, respectively. C. roseus Ag NPs exhibited more bacteriolytic activity than A. indica Ag NPs in terms of the zone of inhibition. Moreover, these particles were effective in healing wounds in BALB/c mice. Ag NPs of C. roseus and A. indica enhanced wound healing by 94% ± 1% and 87% ± 1%, respectively. Our data suggest that Ag NPs from C. roseus and A. indicia ameliorate excision wounds, and wound healing could be due to their effective antimicrobial activity against MDR bacteria. Hence, these Ag NPs could be potential therapeutic agents for the treatment of wounds.
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Affiliation(s)
- Vajravathi Lakkim
- Department of Genetics and Genomics, Yogi Vemana University, Kadapa, AP 516005, India;
| | - Madhava C. Reddy
- Department of Biotechnology and Bioinformatics, Yogi Vemana University, Kadapa, AP 516005, India; (M.C.R.); (R.R.P.)
| | - Roja Rani Pallavali
- Department of Biotechnology and Bioinformatics, Yogi Vemana University, Kadapa, AP 516005, India; (M.C.R.); (R.R.P.)
| | - Kakarla Raghava Reddy
- School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW 2006, Australia;
| | - Ch Venkata Reddy
- School of Mechanical Engineering, Yeungnam University, Gyeongsan 712-749, Korea
| | - Inamuddin
- Advanced Functional Materials Laboratory, Department of Applied Chemistry, Zakir Husain College of Engineering and Technology, Faculty of Engineering and Technology, Aligarh Muslim University, Aligarh, UP 202002, India;
| | - Anwar L. Bilgrami
- Deanship of Scientific Research, King Abdulaziz University, Jeddah 80216, Saudi Arabia;
| | - Dakshayani Lomada
- Department of Genetics and Genomics, Yogi Vemana University, Kadapa, AP 516005, India;
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Dedman CJ, Newson GC, Davies GL, Christie-Oleza JA. Mechanisms of silver nanoparticle toxicity on the marine cyanobacterium Prochlorococcus under environmentally-relevant conditions. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 747:141229. [PMID: 32777503 DOI: 10.1016/j.scitotenv.2020.141229] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 07/22/2020] [Accepted: 07/23/2020] [Indexed: 06/11/2023]
Abstract
Global demand for silver nanoparticles (AgNPs), and their inevitable release into the environment, is rapidly increasing. AgNPs display antimicrobial properties and have previously been recorded to exert adverse effects upon marine phytoplankton. However, ecotoxicological research is often compromised by the use of non-ecologically relevant conditions, and the mechanisms of AgNP toxicity under environmental conditions remains unclear. To examine the impact of AgNPs on natural marine communities, a natural assemblage was exposed to citrate-stabilised AgNPs. Here, investigation confirmed that the marine dominant cyanobacteria Prochlorococcus is particularly sensitive to AgNP exposure. Whilst Prochlorococcus represents the most abundant photosynthetic organism on Earth and contributes significantly to global primary productivity, little ecotoxicological research has been carried out on this cyanobacterium. To address this, Prochlorococcus was exposed to citrate-stabilised AgNPs, as well as silver in its ionic form (Ag2SO4), under simulated natural conditions. Both AgNPs and ionic silver were observed to reduce Prochlorococcus populations by over 90% at concentrations ≥10 μg L-1, representing the upper limit of AgNP concentrations predicted in the environment (10 μg L-1). Longer-term assessment revealed this to be a perturbation which was irreversible. Through use of quenching agents for superoxide and hydrogen peroxide, alongside incubations with ionic silver, it was revealed that AgNP toxicity likely arises from synergistic effects of toxic superoxide species generation and leaching of ionic silver. The extent of toxicity was strongly dependent on cell density, and completely mitigated in more cell-dense cultures. Hence, the calculation and reporting of the particle-to-cell ratio reveals that this parameter is effective for standardisation of experimental work, and allows for direct comparison between studies where cell density may vary. Given the key role that marine cyanobacteria play in global primary production and biogeochemical cycling, their higher susceptibility to AgNP exposure is a concern in hotspots of pollution.
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Affiliation(s)
- Craig J Dedman
- School of Life Sciences, Gibbet Hill Campus, University of Warwick, Coventry CV4 7AL, United Kingdom..
| | - Gabrielle C Newson
- Department of Chemistry, University of Warwick, Gibbet Hill, Coventry CV4 7EQ, United Kingdom
| | - Gemma-Louise Davies
- University College London, Department of Chemistry, 20 Gordon Street, London WC1H 0AJ, United Kingdom..
| | - Joseph A Christie-Oleza
- School of Life Sciences, Gibbet Hill Campus, University of Warwick, Coventry CV4 7AL, United Kingdom.; Department of Biology, University of the Balearic Islands, Ctra. Valldemossa, km 7.5, CP: 07122 Palma, Spain; IMEDEA (CSIC-UIB), CP: 07190 Esporles, Spain.
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Moazzami Farida SH, Karamian R, Albrectsen BR. Silver nanoparticle pollutants activate oxidative stress responses and rosmarinic acid accumulation in sage. PHYSIOLOGIA PLANTARUM 2020; 170:415-432. [PMID: 32705693 DOI: 10.1111/ppl.13172] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Revised: 06/06/2020] [Accepted: 07/17/2020] [Indexed: 06/11/2023]
Abstract
In this study, physiological and molecular responses of sage (Salvia officinalis) to silver nanoparticles (SNPs) were studied. It is supposed that sage oxidative responses can be activated to overcome the negative effects of SNPs. Results showed the penetration of SNPs via leaf epidermis into the parenchyma cells after foliar application. A significant decrease of photosynthetic pigments and increase of cell injury indicators, the activity of enzymatic antioxidants and also the content of non-enzymatic antioxidants were observed after exposure of sage plants to 50 and 1000 mg l-1 SNPs compared to control plants. Phenolic compounds generally increased, but not in linear response to the dose level. The most abundant phenolic acid, rosmarinic acid (RA), increased more than eightfold at 100 mg l-1 SNPs. Furthermore, the content of RA, salvianolic acid A and B was positively correlated with the activity of phenylalanine ammonia-lyase and RA synthase, but not with tyrosine aminotransferase. It could be concluded that the content of phenolic compounds increased in response to lower SNPs concentrations (50 and 100 mg l-1 ). However, the oxidative stress responses continued above these concentrations.
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Affiliation(s)
| | - Roya Karamian
- Department of Biology, Faculty of Science, Bu-Ali Sina University, 65175/4161, Hamedan, Iran
| | - Benedicte R Albrectsen
- Department of Plant Physiology, Umeå University (Umeå Plant Science Centre), 90187, Umeå, Sweden
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Yang Y, Guo L, Wang Z, Liu P, Liu X, Ding J, Zhou W. Targeted silver nanoparticles for rheumatoid arthritis therapy via macrophage apoptosis and Re-polarization. Biomaterials 2020; 264:120390. [PMID: 32980634 DOI: 10.1016/j.biomaterials.2020.120390] [Citation(s) in RCA: 214] [Impact Index Per Article: 53.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 09/01/2020] [Accepted: 09/16/2020] [Indexed: 12/16/2022]
Abstract
Infiltration of inflammatory cells, especially the M1 macrophages that secrete various types of inflammation cytokines, play crucial roles in the pathogenesis of rheumatoid arthritis (RA). To relief synovial inflammation, M1 macrophages must be eliminated or switched to anti-inflammatory M2 phenotype. We herein developed folic acid modified silver nanoparticles (FA-AgNPs) that can actively deliver into M1 macrophages to synergistically induce M1 macrophages reduction and M2 macrophages polarization for effective RA treatment. The AgNPs was facilely prepared, PEGylated and modified with FA to realize M1 macrophages targeting delivery via folate receptor overexpressed on M1 macrophages surface. After entering cells, FA-AgNPs dissolved and released Ag+ in response to intracellular glutathione (GSH), which is the key element to exert a series of anti-inflammatory functions, such as M1 macrophages apoptosis and reactive oxygen species (ROS) scavenging to facilitate M2 macrophages polarization, both of which contributed to RA treatment. This nano-system could passively accumulate into inflamed joints, permit potent anti-inflammatory activity, and impose strong therapeutic efficacy in mice RA models with high biosafety. After treatment, FA-AgNPs could be gradually cleared from the body mainly via feces without tissue accumulation, and did not show any appreciable long-term toxicity. This work declares the first example of using bio-active nanoparticles for RA treatment without loading any drugs, and highlights the potential of FA-AgNPs for targeted RA therapy via simultaneous M1 macrophage apoptosis and M1-to-M2 macrophages re-polarization.
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Affiliation(s)
- Yihua Yang
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan, 410013, China; Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmaceutical Sciences, Xuzhou Medical University, Xuzhou, Jiangsu, 221004, China
| | - Lina Guo
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan, 410013, China
| | - Zhe Wang
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan, 410013, China
| | - Peng Liu
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan, 410013, China
| | - Xuanjun Liu
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan, 410013, China
| | - Jinsong Ding
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan, 410013, China
| | - Wenhu Zhou
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan, 410013, China.
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Zhu S, Li L, Gu Z, Chen C, Zhao Y. 15 Years of Small: Research Trends in Nanosafety. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2000980. [PMID: 32338444 DOI: 10.1002/smll.202000980] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 03/05/2020] [Indexed: 06/11/2023]
Abstract
In the field of nano- and microscale science and technology, Small has become one of the worldwide leading journals since its initiation 15 years ago. Among all the topics covered in Small, "nanosafety" has received growing interest over the years, which accounts for a large proportion of the total publications of Small. Herein, inspired by its coming Special Issue "Rethinking Nanosafety," a general bibliometric overview of the nanosafety studies that have been published in Small is presented. Using the data derived from the Web of Science Core Collection, the annual publication growth, most influential countries/institutions as well as the visualized collaborations between different countries and institutions based on CiteSpace software are presented. A special emphasis on the impact of the previous Special Issue from Small that is related to nanosafety research is given and the research trend from the most highly cited papers during last 15 years is analyzed. Lastly, future research directions are also proposed.
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Affiliation(s)
- Shuang Zhu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics and National Center for Nanoscience and Technology, Chinese Academy of Sciences, Beijing, 100049, China
| | - Lele Li
- CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Chinese Academy of Science, Beijing, 100190, China
| | - Zhanjun Gu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics and National Center for Nanoscience and Technology, Chinese Academy of Sciences, Beijing, 100049, China
- College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Chunying Chen
- CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Chinese Academy of Science, Beijing, 100190, China
| | - Yuliang Zhao
- CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Chinese Academy of Science, Beijing, 100190, China
- College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
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Balaure PC, Grumezescu AM. Recent Advances in Surface Nanoengineering for Biofilm Prevention and Control. Part II: Active, Combined Active and Passive, and Smart Bacteria-Responsive Antibiofilm Nanocoatings. NANOMATERIALS 2020; 10:nano10081527. [PMID: 32759748 PMCID: PMC7466637 DOI: 10.3390/nano10081527] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Revised: 07/23/2020] [Accepted: 07/28/2020] [Indexed: 01/24/2023]
Abstract
The second part of our review describing new achievements in the field of biofilm prevention and control, begins with a discussion of the active antibiofilm nanocoatings. We present the antibiofilm strategies based on antimicrobial agents that kill pathogens, inhibit their growth, or disrupt the molecular mechanisms of biofilm-associated increase in resistance and tolerance. These agents of various chemical structures act through a plethora of mechanisms targeting vital bacterial metabolic pathways or cellular structures like cell walls and cell membranes or interfering with the processes that underlie different stages of the biofilm life cycle. We illustrate the latter action mechanisms through inhibitors of the quorum sensing signaling pathway, inhibitors of cyclic-di-GMP signaling system, inhibitors of (p)ppGpp regulated stringent response, and disruptors of the biofilm extracellular polymeric substances matrix (EPS). Both main types of active antibiofilm surfaces, namely non-leaching or contact killing systems, which rely on the covalent immobilization of the antimicrobial agent on the surface of the coatings and drug-releasing systems in which the antimicrobial agent is physically entrapped in the bulk of the coatings, are presented, highlighting the advantages of each coating type in terms of antibacterial efficacy, biocompatibility, selective toxicity, as well as drawbacks and limitations. Developments regarding combined strategies that join in a unique platform, both passive and active elements are not omitted. In such platforms with dual functionality, passive and active strategies can be applied either simultaneously or sequentially. We especially emphasize those systems that can be reversely and repeatedly switched between the non-fouling status and the bacterial killing status, thereby allowing several bacteria-killing/surface regeneration cycles to be performed without significant loss of the initial bactericidal activity. Eventually, smart antibiofilm coatings that release their antimicrobial payload on demand, being activated by various triggers such as changes in local pH, temperature, or enzymatic triggers, are presented. Special emphasis is given to the most recent trend in the field of anti-infective surfaces, specifically smart self-defensive surfaces for which activation and switch to the bactericidal status are triggered by the pathogens themselves.
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Affiliation(s)
- Paul Cătălin Balaure
- “Costin Nenitzescu” Department of Organic Chemistry, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, G. Polizu Street 1–7, 011061 Bucharest, Romania;
| | - Alexandru Mihai Grumezescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, G. Polizu Street 1–7, 011061 Bucharest, Romania
- Correspondence: ; Tel.: +40-21-402-39-97
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Lucío MI, Kyriazi ME, Hamilton J, Batista D, Sheppard A, Sams-Dodd E, Humbert MV, Hussain I, Christodoulides M, Kanaras AG. Bactericidal Effect of 5-Mercapto-2-nitrobenzoic Acid-Coated Silver Nanoclusters against Multidrug-Resistant Neisseria gonorrhoeae. ACS APPLIED MATERIALS & INTERFACES 2020; 12:27994-28003. [PMID: 32530591 DOI: 10.1021/acsami.0c06163] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Neisseria gonorrhoeae is among the most multidrug-resistant bacteria in circulation today, and new treatments are urgently needed. In this work, we demonstrate the ability of 5-mercapto-2-nitrobenzoic acid-coated silver nanoclusters (MNBA-AgNCs) to kill strains of Neisseria gonorrhoeae. Using an in vitro bactericidal assay, MNBA-AgNCs had been found to show significantly higher anti-gonococcal bioactivity than the antibiotics ceftriaxone and azithromycin and silver nitrate. These nanoclusters were effective against both planktonic bacteria and a gonococcal infection of human cell cultures in vitro. Treatment of human cells in vitro with MNBA-AgNCs did not induce significant release of lactate dehydrogenase, suggesting minimal cytotoxicity to eukaryotic cells. Our results suggest that MNBA-AgNCs hold great potential for topical treatment of localized gonorrhoeae.
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Affiliation(s)
- María Isabel Lucío
- Physics and Astronomy, Faculty of Physical Sciences and Engineering, University of Southampton, Southampton SO17 1BJ, U.K
| | - Maria-Eleni Kyriazi
- Physics and Astronomy, Faculty of Physical Sciences and Engineering, University of Southampton, Southampton SO17 1BJ, U.K
| | - Joshua Hamilton
- Neisseria Research Laboratory, Molecular Microbiology, School of Clinical and Experimental Sciences, Sir Henry Wellcome Laboratories, Faculty of Medicine, University of Southampton, Southampton SO16 6YD, U.K
| | - Diego Batista
- Neisseria Research Laboratory, Molecular Microbiology, School of Clinical and Experimental Sciences, Sir Henry Wellcome Laboratories, Faculty of Medicine, University of Southampton, Southampton SO16 6YD, U.K
| | - Alexander Sheppard
- Neisseria Research Laboratory, Molecular Microbiology, School of Clinical and Experimental Sciences, Sir Henry Wellcome Laboratories, Faculty of Medicine, University of Southampton, Southampton SO16 6YD, U.K
| | - Elisabeth Sams-Dodd
- Neisseria Research Laboratory, Molecular Microbiology, School of Clinical and Experimental Sciences, Sir Henry Wellcome Laboratories, Faculty of Medicine, University of Southampton, Southampton SO16 6YD, U.K
| | - Maria Victoria Humbert
- Neisseria Research Laboratory, Molecular Microbiology, School of Clinical and Experimental Sciences, Sir Henry Wellcome Laboratories, Faculty of Medicine, University of Southampton, Southampton SO16 6YD, U.K
| | - Irshad Hussain
- Department of Chemistry & Chemical Engineering, Syed Babar Ali School of Science and Engineering, Lahore University of Management Sciences (LUMS), DHA, Lahore Cantt 54792, Pakistan
| | - Myron Christodoulides
- Neisseria Research Laboratory, Molecular Microbiology, School of Clinical and Experimental Sciences, Sir Henry Wellcome Laboratories, Faculty of Medicine, University of Southampton, Southampton SO16 6YD, U.K
- Institute for Life Sciences, University of Southampton, Southampton SO17 1BJ, U.K
| | - Antonios G Kanaras
- Physics and Astronomy, Faculty of Physical Sciences and Engineering, University of Southampton, Southampton SO17 1BJ, U.K
- Institute for Life Sciences, University of Southampton, Southampton SO17 1BJ, U.K
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Development of Robust Chitosan–Silica Class II Hybrid Coatings with Antimicrobial Properties for Titanium Implants. COATINGS 2020. [DOI: 10.3390/coatings10060534] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The purpose of this study was to develop robust class II organic–inorganic films as antibacterial coatings on titanium alloy (Ti6Al4V) implants. Coating materials were prepared from organic chitosan (20–80 wt.%) coupled by 3-glycydoxytrimethoxysilane (GPTMS) with inorganic tetraethoxysilane (TEOS). These hybrid networks were imbedded with antimicrobial silver nanoparticles (AgNPs) and coated onto polished and acid-etched Ti6Al4V substrates. Magic-angle spinning nuclear magnetic resonance (13CMAS-NMR), attenuated total reflectance Fourier-transform infrared spectroscopy (ATR-FTIR) and the ninhydrin assay, confirmed the presence and degree of covalent crosslinking (91%) between chitosan and GPTMS. Scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS) identified surface roughness and microtopography on thin films and confirmed homogeneous distribution of elements throughout the coating. Cross-hatch and tensile adhesion testing demonstrated the robustness and adherence (15–20 MPa) of hybrid coatings to acid-etched titanium substrates. Staphylococcus aureus and Escherichia coli cultures and their biofilm formation were inhibited by all hybrid coatings. Antibacterial effects increased markedly for coatings loaded with AgNPs and appeared to increase with chitosan content in biofilm assays. These results are promising in the development of class II hybrid materials as robust and highly adherent antibacterial films on Ti6Al4V implants.
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Mazur P, Skiba-Kurek I, Mrowiec P, Karczewska E, Drożdż R. Synergistic ROS-Associated Antimicrobial Activity of Silver Nanoparticles and Gentamicin Against Staphylococcus epidermidis. Int J Nanomedicine 2020; 15:3551-3562. [PMID: 32547013 PMCID: PMC7246328 DOI: 10.2147/ijn.s246484] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Accepted: 03/29/2020] [Indexed: 12/19/2022] Open
Abstract
Introduction Increasing bacteria resistance to antibiotics is a major problem of healthcare system. There is a need for solutions that broaden the spectrum of bactericidal agents improving the efficacy of commonly used antibiotics. One of the promising directions of search are silver nanoparticles (obtained by different methods and displaying diversified physical and chemical properties), and their combination with antibiotics. Purpose In this study, we tested the role of reactive oxygen species in the mechanism of synergistic antibacterial activity of gentamicin and Tween-stabilized silver nanoparticles against gentamicin-resistant clinical strains of Staphylococcus epidermidis. Methods Synergistic bactericidal activity of gentamicin and silver nanoparticles stabilized with non-ionic detergent (Tween 80) was tested by the checkerboard titration method on microtiter plates. Detection of reactive oxygen species was based on the chemiluminescence of luminol. Results Hydrophilic non-ionic surface functionalization of silver nanoparticles enabled the existence of non-aggregated active nanoparticles in a complex bacterial culture medium. Tween-stabilized silver nanoparticles in combination with gentamicin exhibited bactericidal activity against multidrug-resistant biofilm forming clinical strains of Staphylococcus epidermidis. A synergistic effect significantly decreased the minimal inhibitory concentration of gentamicin (the antibiotic with numerous undesirable effects). Gentamicin significantly enhanced the generation of reactive oxygen species by silver nanoparticles. Conclusion Generation of reactive oxygen species by Tween-coated metallic silver nanoparticles was significantly enhanced by gentamicin, confirming the hypothesis of oxidative-associated mechanism of the synergistic antibacterial effect of the gentamicin-silver nanoparticles complex.
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Affiliation(s)
- Paulina Mazur
- Department of Medical Diagnostics, Faculty of Pharmacy, Jagiellonian University Collegium Medicum, Cracow, Poland
| | - Iwona Skiba-Kurek
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Jagiellonian University Collegium Medicum, Cracow, Poland
| | - Paulina Mrowiec
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Jagiellonian University Collegium Medicum, Cracow, Poland
| | - Elżbieta Karczewska
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Jagiellonian University Collegium Medicum, Cracow, Poland
| | - Ryszard Drożdż
- Department of Medical Diagnostics, Faculty of Pharmacy, Jagiellonian University Collegium Medicum, Cracow, Poland
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Kim JH, Ma J, Jo S, Lee S, Kim CS. Enhancement of Antibacterial Performance of Silver Nanowire Transparent Film by Post-Heat Treatment. NANOMATERIALS 2020; 10:nano10050938. [PMID: 32414078 PMCID: PMC7279492 DOI: 10.3390/nano10050938] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Revised: 04/18/2020] [Accepted: 05/11/2020] [Indexed: 01/17/2023]
Abstract
Silver nanomaterials (AgNMs) have been applied as antibacterial agents to combat bacterial infections that can cause disease and death. The antibacterial activity of AgNMs can be improved by increasing the specific surface area, so significant efforts have been devoted to developing various bottom-up synthesis methods to control the size and shape of the particles. Herein, we report on a facile heat-treatment method that can improve the antibacterial activity of transparent silver nanowire (AgNW) films in a size-controllable, top-down manner. AgNW films were fabricated via spin-coating and were then heated at different temperatures (230 and 280 °C) for 30 min. The morphology and the degree of oxidation of the as-fabricated AgNW film were remarkably sensitive to the heat-treatment temperature, while the transparency was insensitive. As the heat-treatment temperature increased, the AgNWs spontaneously broke into more discrete wires and droplets, and oxidation proceeded faster. The increase in the heat-treatment temperature further increased the antibacterial activity of the AgNW film, and the heat treatment at 280 °C improved the antibacterial activity from 31.7% to 94.7% for Staphylococcus aureus, and from 57.0% to 98.7% for Escherichia coli. Following commonly accepted antibacterial mechanisms of AgNMs, we present a correlation between the antibacterial activity and surface observations of the AgNW film.
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Affiliation(s)
- Ji-Hyeon Kim
- Advanced Nano-Surface Department, Korea Institute of Materials Science, Changwon 51508, Korea; (J.-H.K.); (J.M.); (S.L.)
| | - Junfei Ma
- Advanced Nano-Surface Department, Korea Institute of Materials Science, Changwon 51508, Korea; (J.-H.K.); (J.M.); (S.L.)
- School of Architectural, Civil, Environmental, and Energy Engineering, Kyungpook National University, Daegu 41566, Korea;
| | - Sungjin Jo
- School of Architectural, Civil, Environmental, and Energy Engineering, Kyungpook National University, Daegu 41566, Korea;
| | - Seunghun Lee
- Advanced Nano-Surface Department, Korea Institute of Materials Science, Changwon 51508, Korea; (J.-H.K.); (J.M.); (S.L.)
| | - Chang Su Kim
- Advanced Nano-Surface Department, Korea Institute of Materials Science, Changwon 51508, Korea; (J.-H.K.); (J.M.); (S.L.)
- Correspondence: ; Tel.: +82-55-280-3696
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Kim JH, Ma J, Jo S, Lee S, Kim CS. Enhancement of Antibacterial Properties of a Silver Nanowire Film via Electron Beam Irradiation. ACS APPLIED BIO MATERIALS 2020; 3:2117-2124. [DOI: 10.1021/acsabm.0c00003] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Ji-Hyeon Kim
- Advanced Nano-Surface Department, Korea Institute of Materials Science, Changwon 51508, South Korea
| | - Junfei Ma
- Advanced Nano-Surface Department, Korea Institute of Materials Science, Changwon 51508, South Korea
- School of Architectural, Civil, Environmental, and Energy Engineering, Kyungpook National University, Daegu 41566, South Korea
| | - Sungjin Jo
- School of Architectural, Civil, Environmental, and Energy Engineering, Kyungpook National University, Daegu 41566, South Korea
| | - Seunghun Lee
- Advanced Nano-Surface Department, Korea Institute of Materials Science, Changwon 51508, South Korea
| | - Chang Su Kim
- Advanced Nano-Surface Department, Korea Institute of Materials Science, Changwon 51508, South Korea
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Chen QY, Xiao SL, Shi SQ, Cai LP. A One-Pot Synthesis and Characterization of Antibacterial Silver Nanoparticle-Cellulose Film. Polymers (Basel) 2020; 12:E440. [PMID: 32069877 PMCID: PMC7077706 DOI: 10.3390/polym12020440] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Revised: 02/10/2020] [Accepted: 02/11/2020] [Indexed: 02/07/2023] Open
Abstract
Using N,N-dimethylacetamide (DMAc) as a reducing agent in the presence of PVP-K30, the stable silver nanoparticles (Ag-NPs) solution was prepared by a convenient method for the in situ reduction of silver nitrate. The cellulose-Ag-NPs composite film (CANF) was cast in the same container using lithium chloride (LiCl) giving the Ag-NPs-PVP/DMAc solution cellulose solubility as well as γ-mercaptopropyltrimethoxysilane (MPTS) to couple Ag-NPs and cellulose. The results showed that the Ag-NPs were uniformly dispersed in solution, and the solution had strong antibacterial activities. It was found that the one-pot synthesis allowed the growth of and cross-linking with cellulose processes of Ag-NPs conducted simultaneously. Approximately 61% of Ag-NPs was successfully loaded in CANF, and Ag-NPs were uniformly dispersed in the surface and internal of the composite film. The composite film exhibited good tensile properties (tensile strength could reach up to 86.4 MPa), transparency (light transmittance exceeds 70%), thermal stability, and remarkable antibacterial activities. The sterilization effect of CANF0.04 against Staphylococcus aureus and Escherichia coli exceed 99.9%. Due to low residual LiCl/DMAc and low diffusion of Ag-NPs, the composite film may have potential for applications in food packaging and bacterial barrier.
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Affiliation(s)
- Qi-Yuan Chen
- College of Engineering and Technology, Northeast Forestry University, 26 Hexing Road, Harbin 150040, China;
| | - Sheng-Ling Xiao
- College of Engineering and Technology, Northeast Forestry University, 26 Hexing Road, Harbin 150040, China;
| | - Sheldon Q. Shi
- Department of Mechanical and Energy Engineering, University of North Texas, Denton, TX 76203, USA; (S.Q.S.); (L.-P.C.)
| | - Li-Ping Cai
- Department of Mechanical and Energy Engineering, University of North Texas, Denton, TX 76203, USA; (S.Q.S.); (L.-P.C.)
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Gunawan C, Faiz MB, Mann R, Ting SRS, Sotiriou GA, Marquis CP, Amal R. Nanosilver Targets the Bacterial Cell Envelope: The Link with Generation of Reactive Oxygen Radicals. ACS APPLIED MATERIALS & INTERFACES 2020; 12:5557-5568. [PMID: 31927911 DOI: 10.1021/acsami.9b20193] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The work describes the interactions of nanosilver (NAg) with bacterial cell envelope components at a molecular level and how this associates with the reactive oxygen species (ROS)-mediated toxicity of the nanoparticle. Major structural changes were detected in cell envelope biomolecules as a result of damages in functional moieties, such as the saccharides, amides, and phosphodiesters. NAg exposure disintegrates the glycan backbone in the major cell wall component peptidoglycan, causes complete breakdown of lipoteichoic acid, and disrupts the phosphate-amine and fatty acid groups in phosphatidylethanolamine, a membrane phospholipid. Consistent with the oxidative attacks, we propose that the observed cell envelope damages are inflicted, at least in part, by the reactive oxygen radicals being generated by the nanoparticle during its leaching process, abiotically, without cells. The cell envelope targeting, especially those on the inner membrane phospholipid, is likely to then trigger the rapid generation of lethal levels of cellular superoxide (O2•-) and hydroxyl (OH•) radicals herein seen with a model bacterium. The present study provides a better understanding of the antibacterial mechanisms of NAg, whereby ROS generation could be both the cause and consequence of the toxicity, associated with the initial cell envelope targeting by the nanoparticle.
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Affiliation(s)
- Cindy Gunawan
- ithree institute , University of Technology Sydney , Sydney , NSW 2007 , Australia
- School of Chemical Engineering , University of New South Wales , Sydney , NSW 2052 , Australia
| | - Merisa B Faiz
- School of Chemical Engineering , University of New South Wales , Sydney , NSW 2052 , Australia
| | - Riti Mann
- ithree institute , University of Technology Sydney , Sydney , NSW 2007 , Australia
| | - Simon R S Ting
- Centre for Health Technologies , University of Technology Sydney , Sydney NSW 2007 , Australia
| | - Georgios A Sotiriou
- Department of Microbiology, Tumor and Cell Biology , Karolinska Institutet , Solna, Stockholm 171 77 , Sweden
| | - Christopher P Marquis
- School of Biotechnology and Biomolecular Sciences , University of New South Wales , Sydney , NSW 2052 , Australia
| | - Rose Amal
- School of Chemical Engineering , University of New South Wales , Sydney , NSW 2052 , Australia
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48
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Boehmler DJ, O'Dell ZJ, Chung C, Riley KR. Bovine Serum Albumin Enhances Silver Nanoparticle Dissolution Kinetics in a Size- and Concentration-Dependent Manner. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:1053-1061. [PMID: 31902212 DOI: 10.1021/acs.langmuir.9b03251] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The dissolution of silver nanoparticles (AgNPs) to release Ag(I)(aq) is an important mechanism in potentiating AgNP cytotoxicity and imparting their antibacterial properties. However, AgNPs can undergo other simultaneous biophysicochemical transformations, such as protein adsorption, which can mediate AgNP dissolution behaviors. We report the comprehensive analysis of AgNP dissolution and protein adsorption behaviors with monolayer surface coverage of AgNPs by bovine serum albumin (BSA). AgNP dissolution rate constants, kdissolution, were quantified over several particle sizes (10, 20, and 40 nm) and BSA concentrations (0-2 nM) using linear sweep stripping voltammetry. Across all particle sizes, the dissolution rate constant increased with increasing BSA concentrations. However, protein-enhanced dissolution behaviors were most pronounced for 10 nm AgNPs, which exhibited 3.6-fold and 7.7-fold relative enhancement when compared to 20 and 40 nm AgNPs, respectively. Changes to AgNP surface properties upon interaction with BSA were monitored using dynamic light scattering and zeta potential measurements, while BSA-AgNP complex formation was evaluated using UV-vis spectroscopy and circular dichroism spectroscopy. A subtle increase in the BSA-AgNP association constant was observed with an increase in the AgNP size. Together, these results suggest that the AgNP size dependence of BSA-enhanced dissolution of AgNPs is possibly mediated through both displacement of Ag(I)(aq)-loaded BSA by excess protein in the bulk solution and minimized accessibility of the AgNP surface because of BSA adsorption.
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Affiliation(s)
- Daniel J Boehmler
- Department of Chemistry and Biochemistry , Swarthmore College , Swarthmore , Pennsylvania 19081 , United States
| | - Zachary J O'Dell
- Department of Chemistry and Biochemistry , Swarthmore College , Swarthmore , Pennsylvania 19081 , United States
| | - Christopher Chung
- Department of Chemistry and Biochemistry , Swarthmore College , Swarthmore , Pennsylvania 19081 , United States
| | - Kathryn R Riley
- Department of Chemistry and Biochemistry , Swarthmore College , Swarthmore , Pennsylvania 19081 , United States
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49
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Kalantari K, Mostafavi E, Afifi AM, Izadiyan Z, Jahangirian H, Rafiee-Moghaddam R, Webster TJ. Wound dressings functionalized with silver nanoparticles: promises and pitfalls. NANOSCALE 2020; 12:2268-2291. [PMID: 31942896 DOI: 10.1039/c9nr08234d] [Citation(s) in RCA: 167] [Impact Index Per Article: 41.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Infections are the main reason why most people die from burns and diabetic wounds. The clinical challenge for treating wound infections through traditional antibiotics has been growing steadily and has now reached a critical status requiring a paradigm shift for improved chronic wound care. The US Centers for Disease Control have predicted more deaths from antimicrobial-resistant bacteria than from all types of cancers combined by 2050. Thus, the development of new wound dressing materials that do not rely on antibiotics is of paramount importance. Currently, incorporating nanoparticles into scaffolds represents a new concept of 'nanoparticle dressing' which has gained considerable attention for wound healing. Silver nanoparticles (Ag-NPs) have been categorized as metal-based nanoparticles and are intriguing materials for wound healing because of their excellent antimicrobial properties. Ag-NPs embedded in wound dressing polymers promote wound healing and control microorganism growth. However, there have been several recent disadvantages of using Ag-NPs to fight infections, such as bacterial resistance. This review highlights the therapeutic approaches of using wound dressings functionalized with Ag-NPs and their potential role in revolutionizing wound healing. Moreover, the physiology of the skin and wounds is discussed to place the use of Ag-NPs in wound care into perspective.
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Affiliation(s)
- Katayoon Kalantari
- Department of Chemical Engineering, Northeastern University, Boston, MA 02115, USA. and Centre of Advanced Materials (CAM), Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Ebrahim Mostafavi
- Department of Chemical Engineering, Northeastern University, Boston, MA 02115, USA.
| | - Amalina M Afifi
- Centre of Advanced Materials (CAM), Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Zahra Izadiyan
- Department of Environment and Green Technology, Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, 54100 Kuala Lumpur, Malaysia
| | - Hossein Jahangirian
- Department of Chemical Engineering, Northeastern University, Boston, MA 02115, USA.
| | | | - Thomas J Webster
- Department of Chemical Engineering, Northeastern University, Boston, MA 02115, USA.
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50
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Seifipour R, Nozari M, Pishkar L. Green Synthesis of Silver Nanoparticles using Tragopogon Collinus Leaf Extract and Study of Their Antibacterial Effects. J Inorg Organomet Polym Mater 2020. [DOI: 10.1007/s10904-020-01441-9] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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