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Shoudho K, Uddin S, Rumon MMH, Shakil MS. Influence of Physicochemical Properties of Iron Oxide Nanoparticles on Their Antibacterial Activity. ACS OMEGA 2024; 9:33303-33334. [PMID: 39130596 PMCID: PMC11308002 DOI: 10.1021/acsomega.4c02822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2024] [Revised: 07/10/2024] [Accepted: 07/12/2024] [Indexed: 08/13/2024]
Abstract
The increasing occurrence of infectious diseases caused by antimicrobial resistance organisms urged the necessity to develop more potent, selective, and safe antimicrobial agents. The unique magnetic and tunable properties of iron oxide nanoparticles (IONPs) make them a promising candidate for different theragnostic applications, including antimicrobial agents. Though IONPs act as a nonspecific antimicrobial agent, their antimicrobial activities are directly or indirectly linked with their synthesis methods, synthesizing precursors, size, shapes, concentration, and surface modifications. Alteration of these parameters could accelerate or decelerate the production of reactive oxygen species (ROS). An increase in ROS role production disrupts bacterial cell walls, cell membranes, alters major biomolecules (e.g., lipids, proteins, nucleic acids), and affects metabolic processes (e.g., Krebs cycle, fatty acid synthesis, ATP synthesis, glycolysis, and mitophagy). In this review, we will investigate the antibacterial activity of bare and surface-modified IONPs and the influence of physiochemical parameters on their antibacterial activity. Additionally, we will report the potential mechanism of IONPs' action in driving this antimicrobial activity.
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Affiliation(s)
- Kishan
Nandi Shoudho
- Department
of Mathematics and Natural Sciences, Brac
University, Kha-224 Merul Badda, Dhaka 1212, Bangladesh
- Department
of Chemical Engineering, Bangladesh University
of Engineering and Technology, Dhaka 1000, Bangladesh
| | - Shihab Uddin
- Department
of Bioengineering, King Fahd University
of Petroleum & Minerals, Dhahran 31261, Kingdom
of Saudi Arabia
| | - Md Mahamudul Hasan Rumon
- Department
of Mathematics and Natural Sciences, Brac
University, Kha-224 Merul Badda, Dhaka 1212, Bangladesh
| | - Md Salman Shakil
- Department
of Mathematics and Natural Sciences, Brac
University, Kha-224 Merul Badda, Dhaka 1212, Bangladesh
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2
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Khan S, Rauf A, Aljohani ASM, Al-Awthan YS, Ahmad Z, Bahattab OS, Khan S, Saadiq M, Khan SA, Thiruvengadam R, Thiruvengadam M. Green synthesis of silver and gold nanoparticles in Callistemon viminalis extracts and their antimicrobial activities. Bioprocess Biosyst Eng 2024; 47:1197-1211. [PMID: 38512495 DOI: 10.1007/s00449-024-02994-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Accepted: 03/06/2024] [Indexed: 03/23/2024]
Abstract
In the current study, the bottlebrush [Callistemon viminalis (Sol. ex Gaertn.) G. Don] plant was selected for the green synthesis of silver (Ag) and gold (Au) nanoparticles and to evaluate its antibacterial and antifungal activities. Phytochemical screening of C. viminalis confirmed the presence of alkaloids, anthraquinones, saponins, tannins, betacyanins, phlobatanins, coumarins, terpenoids, steroids, glycosides, and proteins. To characterize the synthesized Ag and Au NPs, UV-Visible spectroscopy, FTIR spectroscopy for functional group identification, field emission scanning electron microscopy (FE-SEM) for particle size, and elemental analysis were performed using EDX. The UV-Visible absorption spectra of the green-synthesized Ag and Au nanoparticles were found to have a maximum absorption band at 420 nm for Ag NPs and 525 nm for Au NPs. FE-SEM analysis of the synthesized NPs revealed a circular shape with a size of 100 nm. Elemental analysis was performed for the synthesis of Ag and Au NPs, which confirmed the purity of the nanoparticles. The greenly synthesized Ag and Au NPs were also evaluated for their anti-bacterial and anti-fungal activities, which exhibited prominent inhibition activities against Escherichia coli, Staphylococcus aureus, Klebsiella pneumoniae, Pseudomonas aeruginosa, Candida albicans, C. krusei, Aspergillus sp., and Trichoderma species. The highest zone of inhibition 15.5 ± 0.75 and 15 ± 0.85 mm was observed for Ag NPs against E. coli and P. aeruginosa. Similarly, Trichoderma sp. and Aspergillus sp. were inhibited by Ag NPs up to 13.5 ± 0.95 and 13 ± 0.70 mm. This work will open doors for the development of new antimicrobial agents using green chemistry.
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Affiliation(s)
- Shahid Khan
- Department of Chemistry, University of Swabi, Anbar, Khyber Pakhtunkhwa, 23561, Pakistan
| | - Abdur Rauf
- Department of Chemistry, University of Swabi, Anbar, Khyber Pakhtunkhwa, 23561, Pakistan.
| | - Abdullah S M Aljohani
- Department of Veterinary Medicine, College of Agriculture and Veterinary Medicine, Qassim University, Buraydah, Saudi Arabia
| | - Yahya S Al-Awthan
- Department of Biology, Faculty of Science, University of Tabuk, 71491, Tabuk, Saudi Arabia
| | - Zubair Ahmad
- Department of Chemistry, University of Swabi, Anbar, Khyber Pakhtunkhwa, 23561, Pakistan
| | - Omar S Bahattab
- Department of Biology, Faculty of Science, University of Tabuk, 71491, Tabuk, Saudi Arabia
| | - Shehla Khan
- Department, of Biotechnology, University of Swabi, Swabi, Anbar, KPK, Pakistan
| | - Muhammad Saadiq
- Department of Chemistry, Bacha Khan University, Charsadda, KP, Pakistan
| | - Shahid Ali Khan
- Department of Chemistry, University of Swabi, Anbar, Khyber Pakhtunkhwa, 23561, Pakistan
| | - Rekha Thiruvengadam
- Center for Global Health Research, Saveetha Medical College, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, 600077, India.
| | - Muthu Thiruvengadam
- Department of Crop Science, College of Sanghuh Life Science, Konkuk University, Seoul, 05029, Republic of Korea
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3
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Daneshmehr M, Pazhang M, Mollaei S, Ebadi M, Pazhang Y. Targeted delivery of 5-fluorouracil and shikonin by blended and coated chitosan/pectin nanoparticles for treatment of colon cancer. Int J Biol Macromol 2024; 270:132413. [PMID: 38761911 DOI: 10.1016/j.ijbiomac.2024.132413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 05/06/2024] [Accepted: 05/14/2024] [Indexed: 05/20/2024]
Abstract
Herein, 5-fluorouracil and shikonin (extracted from Fusarium tricinctum) were loaded in chitosan/pectin nanoparticle (CS/PEC-NPs), prepared by blending (B-CS/PEC-NPs) and coating (C-CS/PEC-NPs) methods. The nanoparticles characterized by Fourier Transform Infrared (FTIR), X-ray diffraction (XRD), Energy-dispersive X-ray (EDX), Scanning Electron Microscope (SEM) and Differential Light Scattering (DLS). Then, some properties of the nanoparticles such as drug release rate and the nanoparticles cytotoxicity were studied. The FTIR, XRD, EDX, SEM and DLS results showed that the nanoparticles synthesized properly with an almost spherical morphology, an average size of 82-93 nm for B-CS/PEC-NPs, an average diameter of below 100 nm (mostly 66-89 nm) for C-CS/PEC-NPs, and hydrodynamic diameter of 310-817 nm. The drug release results indicated the lower release rate of drugs for B-CS/PEC-NPs relative to C-CS/PEC-NPs at different pHs, high release rate of drugs for the nanoparticles in the simulated large intestinal fluids containing pectinase, and Korsmeyer-Peppas model for release of the drugs. The results showed more cytotoxicity of B-CS/PEC-NPs containing drugs, especially B-CS/PEC-NPs containing both drugs (B-CS/PEC/5-FU/SHK-NPs) after treating with pectinase (IC50 of 18.6 μg/mL). In conclusion, despite the limitation of C-CS/PEC-NPs for simultaneous loading of hydrophilic and hydrophobic drugs, B-CS/PEC-NPs showed suitable potency for loading and targeted delivery of the drugs.
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Affiliation(s)
- Maryam Daneshmehr
- Department of Biology, Faculty of Sciences, Azarbaijan Shahid Madani University, Tabriz, Iran
| | - Mohammad Pazhang
- Department of Biology, Faculty of Sciences, Azarbaijan Shahid Madani University, Tabriz, Iran.
| | - Saeed Mollaei
- Department of Chemistry, Faculty of Sciences, Azarbaijan Shahid Madani University, Tabriz, Iran
| | - Mostafa Ebadi
- Department of Biology, Faculty of Sciences, Azarbaijan Shahid Madani University, Tabriz, Iran
| | - Yaghub Pazhang
- Department of Biology, Faculty of Sciences, Urmia University, Urmia, Iran
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4
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Ozdal OG. Green synthesis of Ag, Se, and Ag 2Se nanoparticles by Pseudomonas aeruginosa: characterization and their biological and photocatalytic applications. Folia Microbiol (Praha) 2024; 69:625-638. [PMID: 37917276 DOI: 10.1007/s12223-023-01100-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 10/18/2023] [Indexed: 11/04/2023]
Abstract
Nanoparticles have drawn significant interest in a range of applications, ranging from biomedical to environmental sciences, due to their distinctive physicochemical characteristics. In this study, it was reported that simple biological production of Ag, Se, and bimetallic Ag2Se nanoparticles (NPs) with Pseudomonas aeruginosa is a promising, low-cost, and environmentally friendly method. For the first time in the scientific literature, Ag2Se nanoparticles have been generated via green bacterial biosynthesis. UV-vis spectroscopy, X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM), scanning electron microscopy (SEM), and EDX were used to characterize the produced NPs. Biosynthesized NPs were examined for antibacterial, antibiofilm, and photocatalytic properties, and it was determined that the effects of NPs were dose dependent. The biosynthesized AgNPs, SeNPs, and Ag2Se NPs showed anti-microbial activity against Escherichia coli and Staphylococcus aureus. Minimal inhibitory concentrations (MICs) of E. coli and S. aureus were between 150 and 250 µg/mL. The NPs showed antibiofilm activity against E. coli and S. aureus at sub-MIC levels and reduced biofilm formation by at least 80% at a concentration of 200 µg/mL of each NPs. To photocatalyze the breakdown of Congo red, Ag, Se, and Ag2Se NPs were utilized, and their photocatalytic activity was tested at various concentrations and intervals. A minor decrease of photocatalytic degradation was detected throughout the NPs reuse operation (five cycles). Based on the encouraging findings, the synthesized NPs demonstrated antibacterial, antibiofilm, and photocatalytic properties, suggesting that they might be used in pharmaceutical, medical, environmental, and other applications.
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Affiliation(s)
- Ozlem Gur Ozdal
- Department of Biology, Science Faculty, Ataturk University, 25240, Erzurum, Turkey.
- Koprukoy Anatolian High School, Erzurum, Turkey.
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5
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Afrasiabi S, Partoazar A. Targeting bacterial biofilm-related genes with nanoparticle-based strategies. Front Microbiol 2024; 15:1387114. [PMID: 38841057 PMCID: PMC11150612 DOI: 10.3389/fmicb.2024.1387114] [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: 02/16/2024] [Accepted: 05/03/2024] [Indexed: 06/07/2024] Open
Abstract
Persistent infection caused by biofilm is an urgent in medicine that should be tackled by new alternative strategies. Low efficiency of classical treatments and antibiotic resistance are the main concerns of the persistent infection due to biofilm formation which increases the risk of morbidity and mortality. The gene expression patterns in biofilm cells differed from those in planktonic cells. One of the promising approaches against biofilms is nanoparticle (NP)-based therapy in which NPs with multiple mechanisms hinder the resistance of bacterial cells in planktonic or biofilm forms. For instance, NPs such as silver (Ag), zinc oxide (ZnO), titanium dioxide (TiO2), copper oxide (Cu), and iron oxide (Fe3O4) through the different strategies interfere with gene expression of bacteria associated with biofilm. The NPs can penetrate into the biofilm structure and affect the expression of efflux pump, quorum-sensing, and adhesion-related genes, which lead to inhibit the biofilm formation or development. Therefore, understanding and targeting of the genes and molecular basis of bacterial biofilm by NPs point to therapeutic targets that make possible control of biofilm infections. In parallel, the possible impact of NPs on the environment and their cytotoxicity should be avoided through controlled exposure and safety assessments. This study focuses on the biofilm-related genes that are potential targets for the inhibition of bacterial biofilms with highly effective NPs, especially metal or metal oxide NPs.
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Affiliation(s)
- Shima Afrasiabi
- Laser Research Center of Dentistry, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Alireza Partoazar
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran
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Eltabeeb MA, Hamed RR, El-Nabarawi MA, Teaima MH, Hamed MIA, Darwish KM, Hassan M, Abdellatif MM. Nanocomposite alginate hydrogel loaded with propranolol hydrochloride kolliphor ® based cerosomes as a repurposed platform for Methicillin-Resistant Staphylococcus aureus-(MRSA)-induced skin infection; in-vitro, ex-vivo, in-silico, and in-vivo evaluation. Drug Deliv Transl Res 2024:10.1007/s13346-024-01611-z. [PMID: 38762697 DOI: 10.1007/s13346-024-01611-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/23/2024] [Indexed: 05/20/2024]
Abstract
Nanocomposite alginate hydrogel containing Propranolol hydrochloride (PNL) cerosomes (CERs) was prepared as a repurposed remedy for topical skin Methicillin-Resistant Staphylococcus aureus (MRSA) infection. CERs were formed via an ethanol injection technique using different ceramides, Kolliphores® as a surfactant, and Didodecyldimethylammonium bromide (DDAB) as a positive charge inducer. CERs were optimized utilizing 13. 22 mixed-factorial design employing Design-Expert® software, the assessed responses were entrapment efficiency (EE%), particle size (PS), and zeta potential (ZP). The optimum CER, composed of 5 mg DDAB, ceramide VI, and Kolliphor® RH40 showed tubular vesicles with EE% of 92.91 ± 0.98%, PS of 388.75 ± 18.99 nm, PDI of 0.363 ± 0.01, and ZP of 30.36 ± 0.69 mV. Also, it remained stable for 90 days and manifested great mucoadhesive aspects. The optimum CER was incorporated into calcium alginate to prepare nanocomposite hydrogel. The ex-vivo evaluation illustrated that PNL was permeated in a more prolonged pattern from PNL-loaded CERs nanocomposite related to PNL-composite, optimum CER, and PNL solution. Confocal laser scanning microscopy revealed a perfect accumulation of fluorescein-labeled CERs in the skin. The in-silico investigation illustrated that the PNL was stable when mixed with other ingredients in the CERs and confirmed that PNL is a promising candidate for curing MRSA. Moreover, the PNL-loaded CERs nanocomposite revealed superiority over the PNL solution in inhibiting biofilm formation and eradication. The PNL-loaded CERs nanocomposite showed superiority over the PNL-composite for treating MRSA infection in the in-vivo mice model. Histopathological studies revealed the safety of the tested formulations. In conclusion, PNL-loaded CERs nanocomposite provided a promising, safe cure for MRSA bacterial skin infection.
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Affiliation(s)
- Moaz A Eltabeeb
- Department of Industrial Pharmacy, College of Pharmaceutical Sciences and Drug Manufacturing, Misr University for Science and Technology, Giza, Egypt.
| | - Raghda Rabe Hamed
- Department of Industrial Pharmacy, College of Pharmaceutical Sciences and Drug Manufacturing, Misr University for Science and Technology, Giza, Egypt
| | - Mohamed A El-Nabarawi
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Mahmoud H Teaima
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Mohammed I A Hamed
- Organic and Medicinal Chemistry Department, Faculty of Pharmacy, Fayoum University, Faiyum, Egypt
| | - Khaled M Darwish
- Department of Medicinal Chemistry, Faculty of Pharmacy, Suez Canal University, Ismailia, 41522, Egypt
| | - Mariam Hassan
- Department of Microbiology and Immunology, Faculty of Pharmacy, Galala University, New Galala City, Suez, 43511, Egypt
- Department of Microbiology and Immunology, Faculty of Pharmacy, Cairo University, Cairo, 11562, Egypt
| | - Menna M Abdellatif
- Department of Industrial Pharmacy, College of Pharmaceutical Sciences and Drug Manufacturing, Misr University for Science and Technology, Giza, Egypt
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Girma A, Abera B, Mekuye B, Mebratie G. Antibacterial Activity and Mechanisms of Action of Inorganic Nanoparticles against Foodborne Bacterial Pathogens: A Systematic Review. IET Nanobiotechnol 2024; 2024:5417924. [PMID: 38863967 PMCID: PMC11095078 DOI: 10.1049/2024/5417924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 06/25/2023] [Accepted: 07/18/2023] [Indexed: 06/13/2024] Open
Abstract
Foodborne disease outbreaks due to bacterial pathogens and their toxins have become a serious concern for global public health and security. Finding novel antibacterial agents with unique mechanisms of action against the current spoilage and foodborne bacterial pathogens is a central strategy to overcome antibiotic resistance. This study examined the antibacterial activities and mechanisms of action of inorganic nanoparticles (NPs) against foodborne bacterial pathogens. The articles written in English were recovered from registers and databases (PubMed, ScienceDirect, Web of Science, Google Scholar, and Directory of Open Access Journals) and other sources (websites, organizations, and citation searching). "Nanoparticles," "Inorganic Nanoparticles," "Metal Nanoparticles," "Metal-Oxide Nanoparticles," "Antimicrobial Activity," "Antibacterial Activity," "Foodborne Bacterial Pathogens," "Mechanisms of Action," and "Foodborne Diseases" were the search terms used to retrieve the articles. The PRISMA-2020 checklist was applied for the article search strategy, article selection, data extraction, and result reporting for the review process. A total of 27 original research articles were included from a total of 3,575 articles obtained from the different search strategies. All studies demonstrated the antibacterial effectiveness of inorganic NPs and highlighted their different mechanisms of action against foodborne bacterial pathogens. In the present study, small-sized, spherical-shaped, engineered, capped, low-dissolution with water, high-concentration NPs, and in Gram-negative bacterial types had high antibacterial activity as compared to their counterparts. Cell wall interaction and membrane penetration, reactive oxygen species production, DNA damage, and protein synthesis inhibition were some of the generalized mechanisms recognized in the current study. Therefore, this study recommends the proper use of nontoxic inorganic nanoparticle products for food processing industries to ensure the quality and safety of food while minimizing antibiotic resistance among foodborne bacterial pathogens.
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Affiliation(s)
- Abayeneh Girma
- Department of Biology, College of Natural and Computational Science, Mekdela Amba University, P.O. Box 32, Tuluawlia, Ethiopia
| | - Birhanu Abera
- Department of Physics, College of Natural and Computational Science, Mekdela Amba University, P.O. Box 32, Tuluawlia, Ethiopia
| | - Bawoke Mekuye
- Department of Physics, College of Natural and Computational Science, Mekdela Amba University, P.O. Box 32, Tuluawlia, Ethiopia
| | - Gedefaw Mebratie
- Department of Physics, College of Natural and Computational Science, Mekdela Amba University, P.O. Box 32, Tuluawlia, Ethiopia
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Al-Sahli SA, Al-Otibi F, Alharbi RI, Amina M, Al Musayeib NM. Silver nanoparticles improve the fungicidal properties of Rhazya stricta decne aqueous extract against plant pathogens. Sci Rep 2024; 14:1297. [PMID: 38221517 PMCID: PMC10788342 DOI: 10.1038/s41598-024-51855-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Accepted: 01/10/2024] [Indexed: 01/16/2024] Open
Abstract
One of the most promising, non-toxic, and biocompatible developments for many biological activities is the green synthesis of nanoparticles from plants. In this work, we investigated the antifungal activity of silver nanoparticles (AgNPs) biosynthesized from Rhazya stricta aqueous extract against several plant pathogenic fungi. UV-visible spectroscopy, Zeta potential analysis, Fourier-transform infrared spectroscopy (FTIR), and transmitted electron microscopy (TEM) were used to analyze the biosynthesized AgNPs. Drechslera halodes, Drechslera tetramera, Macrophomina phaseolina, Alternaria alternata, and Curvularia australiensis were tested for their potential antifungal activity. Surface Plasmon Resonance (SPR) of Aq. AgNPs and Alkaline Aq. AgNPs was observed at 405 nm and 415 nm, respectively. FTIR analysis indicated hydroxyl, nitrile, amine, and ketone functional groups. Aq. AgNPs and Alka-line Aq. AgNPs had velocities of - 27.7 mV and - 37.9 mV and sizes of 21-90 nm and 7.2-25.3 nm, respectively, according to zeta potential studies and TEM. The antifungal examination revealed that all species' mycelial development was significantly inhibited, accompanied by severe ultra-structural alterations. Among all treatments, Aq. AgNPs were the most effective fungicide. M. phaseolina was statistically the most resistant, whereas A. alternata was the most vulnerable. To the best of our knowledge, this is the first report on R. stricta's antifungal activity against these species.
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Affiliation(s)
- Sarah A Al-Sahli
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 22452, 11495, Riyadh, Saudi Arabia
| | - Fatimah Al-Otibi
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 22452, 11495, Riyadh, Saudi Arabia.
| | - Raedah I Alharbi
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 22452, 11495, Riyadh, Saudi Arabia
| | - Musarat Amina
- Department of Pharmacognosy, Pharmacy College, King Saud University, 11451, Riyadh, Saudi Arabia
| | - Nawal M Al Musayeib
- Department of Pharmacognosy, Pharmacy College, King Saud University, 11451, Riyadh, Saudi Arabia
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Hoang PH, Nguyen MT, Phan KS, Bui HG, Le TTH, Chu NH, Ho NA, Pham QH, Tran XK, Ha PT. Multilayer immobilizing of denitrifying Bacillus sp. and TiO 2-AgNPs on floating expanded clay carrier for co-treatment of nitrite and pathogens in aquaculture. RSC Adv 2024; 14:1984-1994. [PMID: 38196911 PMCID: PMC10774862 DOI: 10.1039/d3ra07361k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Accepted: 12/11/2023] [Indexed: 01/11/2024] Open
Abstract
Nitrite contamination and the spread of pathogens can seriously degrade water quality. To simultaneously control these factors, an innovative approach of fabricating a remediation agent that contained denitrifying bacteria and TiO2-AgNPs co-immobilized on floating expanded clay (EC) was proposed in this study. The EC was fabricated from a mixture of clay and rice husk through pyrolysis at a high temperature of 1200 °C, followed by a rapid cooling step to create a porous structure for the material. TiO2NPs were modified with Ag to shift the absorbance threshold of TiO2-AgNPs into the visible region of 700-800 nm. The experimental results showed that the stirring speed of 250 rpm was suitable for immobilizing TiO2-AgNPs on EC and achieved the highest Ti and Ag content of 639.38 ± 3.04 and 200.51 ± 3.71 ppm, respectively. Coating TiO2-Ag/EC with chitosan (0.5%) significantly reduced the detachment level of immobilized TiO2-AgNPs compared to that of the material with no coating. In particular, this functionalized material inhibited 99.93 ± 0.1% of Vibrio parahaemolyticus pathogen but did not adversely affect the denitrifying bacteria after 2 h of visible light irradiation. Based on the electrostatic bond between oppositely charged polymers, the denitrifying bacteria, Bacillus sp., in alginate solution was successfully immobilized on the chitosan-coated TiO2-Ag/EC with a bacteria density of (76.67 ± 9.43) × 107 CFU g-1, retaining its nitrite removal efficiency at 99.0 ± 0.27% through six treatment cycles. These findings provide solid evidence for further investigating the combination of biodegradation and photodegradation in wastewater treatment.
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Affiliation(s)
- Phuong Ha Hoang
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Road, Cau Giay District Hanoi 100000 Vietnam
- Institute of Biotechnology, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Road, Cau Giay District Hanoi 100000 Vietnam
| | - Minh Thi Nguyen
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Road, Cau Giay District Hanoi 100000 Vietnam
- Institute of Biotechnology, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Road, Cau Giay District Hanoi 100000 Vietnam
| | - Ke Son Phan
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Road, Cau Giay District Hanoi 100000 Vietnam
- Institute of Materials Science, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Road, Cau Giay District Hanoi 100000 Vietnam
| | - Huong Giang Bui
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Road, Cau Giay District Hanoi 100000 Vietnam
- Institute of Biotechnology, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Road, Cau Giay District Hanoi 100000 Vietnam
| | - Thi Thu Huong Le
- Vietnam National University of Agriculture Trau Quy, Gia Lam District Hanoi 100000 Vietnam
| | - Nhat Huy Chu
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Road, Cau Giay District Hanoi 100000 Vietnam
- Institute of Biotechnology, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Road, Cau Giay District Hanoi 100000 Vietnam
| | - Ngoc Anh Ho
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Road, Cau Giay District Hanoi 100000 Vietnam
- Institute of Biotechnology, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Road, Cau Giay District Hanoi 100000 Vietnam
| | - Quang Huy Pham
- Institute of Biotechnology, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Road, Cau Giay District Hanoi 100000 Vietnam
| | - Xuan Khoi Tran
- Institute of Biotechnology, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Road, Cau Giay District Hanoi 100000 Vietnam
| | - Phuong Thu Ha
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Road, Cau Giay District Hanoi 100000 Vietnam
- Institute of Materials Science, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Road, Cau Giay District Hanoi 100000 Vietnam
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10
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Elshaer S, Shaaban MI. Antibiofilm activity of biosynthesized silver and copper nanoparticles using Streptomyces S29. AMB Express 2023; 13:139. [PMID: 38055099 DOI: 10.1186/s13568-023-01647-3] [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: 11/17/2023] [Accepted: 11/21/2023] [Indexed: 12/07/2023] Open
Abstract
Microbial resistance and biofilm formation have been considered as the main problems associated with microbial resistance. Several antimicrobial agents cannot penetrate biofilm layers and cannot eradicate microbial infection. Therefore, the aim of this study is the biological synthesis of silver and copper nanoparticles to assess their activities on bacterial attachment and on the viability of dormant cells within the biofilm matrix. Ag-NPs and Cu-NPs were biosynthesized using Streptomyces isolate S29. The biologically synthesized Ag-NPs and Cu-NPs exhibited brown and blue colors and were detected by UV/Vis spectrophotometry at 476 and 594 nm, respectively. The Ag-NPs showed an average size of 10-20 nm as indicated by TEM, and 25-35 nm for Cu-NPs. Both Ag-NPs and Cu-NPs were monodispersed with a polydispersity index of 0.1-0.546 and zeta potential were - 29.7, and - 33.7 mv, respectively. The biologically synthesized Ag-NPs and Cu-NPs significantly eliminated bacterial attachment and decreased the viable cells in the biofilm matrix as detected by using crystal violet and tri-phenyl tetrazolium chloride assays. Furthermore, Ag-NPs and Cu-NPs significantly eradicated mature biofilms developed by various Gram-negative pathogens, including A. baumannii, K. pneumoniae and P. aeruginosa standard strains and clinical isolates. Data were also confirmed at the molecular level with prominent elimination of biofilm gene expression carO, bssS and pelA in A. baumannii, K. pneumoniae and P. aeruginosa, respectively compared to untreated cells under the same conditions. As indicated, Ag-NPs and Cu-NPs could be used as adjuvant therapy in eradication of antibiotic resistance and biofilm matrix associated with Gram-negative bacterial infection.
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Affiliation(s)
- Soha Elshaer
- Department of Microbiology and Immunology, Faculty of Pharmacy, Mansoura University, Mansoura, 35516, Egypt.
| | - Mona I Shaaban
- Department of Microbiology and Immunology, Faculty of Pharmacy, Mansoura University, Mansoura, 35516, Egypt.
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Saravanan H, Subramani T, Rajaramon S, David H, Sajeevan A, Sujith S, Solomon AP. Exploring nanocomposites for controlling infectious microorganisms: charting the path forward in antimicrobial strategies. Front Pharmacol 2023; 14:1282073. [PMID: 37829306 PMCID: PMC10565656 DOI: 10.3389/fphar.2023.1282073] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 09/18/2023] [Indexed: 10/14/2023] Open
Abstract
Nanocomposites, formed by combining a matrix (commonly polymer or ceramic) with nanofillers (nano-sized inclusions like nanoparticles or nanofibers), possess distinct attributes attributed to their composition. Their unique physicochemical properties and interaction capabilities with microbial cells position them as a promising avenue for infectious disease treatment. The escalating prevalence of multi-drug resistant bacteria intensifies the need for alternative solutions. Traditional approaches involve antimicrobial agents like antibiotics, antivirals, and antifungals, targeting specific microbial aspects. This review presents a comprehensive overview of diverse nanocomposite types and highlights the potential of tailored matrix and antibacterial agent selection within nanocomposites to enhance treatment efficacy and decrease antibiotic resistance risks. Challenges such as toxicity, safety, and scalability in clinical applications are also acknowledged. Ultimately, the convergence of nanotechnology and infectious disease research offers the prospect of enhanced therapeutic strategies, envisioning a future wherein advanced materials revolutionize the landscape of medical treatment.
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Affiliation(s)
| | | | | | | | | | | | - Adline Princy Solomon
- Quorum Sensing Laboratory, Centre for Research in Infectious Diseases (CRID), School of Chemical and Biotechnology, SASTRA Deemed to be University, Thanjavur, India
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Janani G, Girigoswami A, Girigoswami K. Supremacy of nanoparticles in the therapy of chronic myelogenous leukemia. ADMET AND DMPK 2023; 11:499-511. [PMID: 37937247 PMCID: PMC10626512 DOI: 10.5599/admet.2013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 09/25/2023] [Indexed: 11/09/2023] Open
Abstract
Background and purpose The reciprocal translocation of the ABL gene from chromosome 9 to chromosome 22 near the BCR gene gives rise to chronic myelogenous leukemia (CML). The translocation results in forming the Philadelphia chromosome (BCR-ABL) tyrosine kinase. CML results in an increase in the number of white blood cells and alteration in tyrosine kinase expression. CML prognosis includes three stages, namely chronic, accelerated, and blast. The diagnosis method involves a CT scan, biopsy, and complete blood count. However, due to certain disadvantages, early diagnosis of CML is not possible by traditional methods. Nanotechnology offers many advantages in diagnosing and treating cancer. Experimental approach We searched PubMed, Scopus and Google Scholar using the keywords Philadelphia chromosome, bionanotechnology, tyrosine kinase pathway, half-life, passive targeting, and organic and inorganic nanoparticles. The relevant papers and the classical papers in this field were selected to write about in this review. Key results The sensitivity and specificity of an assay can be improved by nanoparticles. Utilizing this property, peptides, antibodies, aptamers, etc., in the form of nanoparticles, can be used to detect cancer at a much earlier stage. The half-life of the drug is also increased by nanoformulation. The nanoparticle-coated drugs can easily escape from the immune system. Conclusion Depending on their type, nanoparticles can be categorized into organic, inorganic and hybrid. Each type has its advantages. Organic nanoparticles have good biocompatibility, inorganic nanoparticles increase the half-life of the drugs. In this review, we highlight the nanoparticles involved in treating CML.
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Affiliation(s)
| | | | - Koyeli Girigoswami
- Medical Bionanotechnology, Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Chettinad Health City, Kelambakkam, Chennai-603103, India
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Maheswari J, Anjum MR, Sankari M, Narasimha G, Krishna SBN, Kishori B. Green synthesis, characterization and biological activities of silver nanoparticles synthesized from Neolamarkia cadamba. ADMET AND DMPK 2023; 11:573-585. [PMID: 37937248 PMCID: PMC10626518 DOI: 10.5599/admet.1793] [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: 03/28/2023] [Revised: 06/14/2023] [Indexed: 11/09/2023] Open
Abstract
Background and purpose Metal nanoparticles are essential due to their unique catalytic, electrical, magnetic, and optical characteristics, as well as their prospective use in sensing, catalysis, and biological research. In recent years, researchers have focused on developing cost-effective and eco-friendly biogenic practices using the green synthesis of metal nanoparticles (AgNP). Experimental approach In the present study, the aqueous extracts prepared from the leaf, stem, bark, and flower of Neolamarkia cadamba were used for the synthesis of silver nanoparticles. Synthesized silver nanoparticles were characterized using UV-Visible spectroscopy, zeta potential, dynamic light scattering, scanning electron microscope (SEM), and EDAX. Key results The current study showed absorption of synthesized AgNPs at 425, 423, 410, and 400 nm. Dynamic light scattering of AgNPs Showed size distribution of AgNPs synthesized from leaf, stem, and flower aqueous extracts ranges from 80-200 nm and AgNPs prepared from bark extract ranges from 100-700 nm. Zeta-potential of the biosynthesized AgNPs was found as a sharp peak at -23.1 mV for the leaf, -27.0 mV for the stem, -34.1 mV for the bark, and -20.2 mV for the flower. Silver nanoparticles and crude extracts of Neolamarkia cadamba showed effective antibacterial, antifungal, and antioxidant activities. Conclusion Silver nanoparticles have substantial antibacterial activity against Gram-positive bacteria and also exhibit the utmost antifungal activity against Aspergillus niger. The study concludes that the green synthesis of silver nanoparticles from N. cadamba leaf, stem, bark, and flower extract is a reliable and eco-friendly technique.
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Affiliation(s)
- Juluri Maheswari
- Department of Biotechnology, Sri Padmavati Mahila Visvavidyalayam (Women’s University), Tirupati- 517 502, A.P. India
| | - Mohammed Reshma Anjum
- Department of Biotechnology, Sri Padmavati Mahila Visvavidyalayam (Women’s University), Tirupati- 517 502, A.P. India
| | - Mohan Sankari
- Department of Biotechnology, Sri Padmavati Mahila Visvavidyalayam (Women’s University), Tirupati- 517 502, A.P. India
| | - Golla Narasimha
- Department of Virology, Sri Venkateswara University, Tirupati- 517 502, A.P. India
| | - Suresh Babu Naidu Krishna
- Institute for Water and Wastewater Technology, Durban University of Technology, Durban – 4000, South Africa
| | - Battini Kishori
- Department of Biotechnology, Sri Padmavati Mahila Visvavidyalayam (Women’s University), Tirupati- 517 502, A.P. India
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14
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Chapa González C, González García LI, Burciaga Jurado LG, Carrillo Castillo A. Bactericidal activity of silver nanoparticles in drug-resistant bacteria. Braz J Microbiol 2023; 54:691-701. [PMID: 37131105 PMCID: PMC10235008 DOI: 10.1007/s42770-023-00991-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 04/23/2023] [Indexed: 05/04/2023] Open
Abstract
Bacterial resistance to multiple drugs is a worldwide problem that afflicts public health. Various studies have shown that silver nanoparticles are good bactericidal agents against bacteria due to the adherence and penetration of the external bacterial membrane, preventing different vital functions and subsequently bacterial cell death. A systematic review of ScienceDirect, PubMed, and EBSCOhost was conducted to synthesize the literature evidence on the association between the bactericidal property of silver nanoparticles on both resistant Gram-positive and Gram-negative bacteria. Eligible studies were original, comparative observational studies that reported results on drug-resistant bacteria. Two independent reviewers extracted the relevant information. Out of the initial 1 420, 142 studies met the inclusion criteria and were included to form the basis of the analysis. Full-text screening led to the selection of 6 articles for review. The results of this systematic review showed that silver nanoparticles act primarily as bacteriostatic agents and subsequently as bactericides, both in Gram-positive and Gram-negative drug-resistant bacteria.
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Affiliation(s)
- C Chapa González
- Grupo de Investigación en Nanomedicina, Instituto de Ingeniería y Tecnología de la Universidad Autónoma de Ciudad Juárez, Ave. del Charro 450, Ciudad Juárez, 32310, México.
- Ingeniería Biomédica, Instituto de Ingeniería y Tecnología de la Universidad Autónoma de Ciudad Juárez, Ave. del Charro 450, Ciudad Juárez, 32310, México.
| | - L I González García
- Grupo de Investigación en Nanomedicina, Instituto de Ingeniería y Tecnología de la Universidad Autónoma de Ciudad Juárez, Ave. del Charro 450, Ciudad Juárez, 32310, México
| | - L G Burciaga Jurado
- Ingeniería Biomédica, Instituto de Ingeniería y Tecnología de la Universidad Autónoma de Ciudad Juárez, Ave. del Charro 450, Ciudad Juárez, 32310, México
| | - A Carrillo Castillo
- Ingeniería Biomédica, Instituto de Ingeniería y Tecnología de la Universidad Autónoma de Ciudad Juárez, Ave. del Charro 450, Ciudad Juárez, 32310, México
- Biotecnología y Nanotecnología en Electrónica Flexible, Instituto de Ingeniería y Tecnología de la Universidad Autónoma de Ciudad Juárez, Ave. del Charro 450, Ciudad Juárez, 32310, México
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Chakraborty A, Diwan A, Tatake J. Prospect of nanomaterials as antimicrobial and antiviral regimen. AIMS Microbiol 2023; 9:444-466. [PMID: 37649798 PMCID: PMC10462459 DOI: 10.3934/microbiol.2023024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 03/09/2023] [Accepted: 04/17/2023] [Indexed: 09/01/2023] Open
Abstract
In recent years studies of nanomaterials have been explored in the field of microbiology due to the increasing evidence of antibiotic resistance. Nanomaterials could be inorganic or organic, and they may be synthesized from natural products from plant or animal origin. The therapeutic applications of nano-materials are wide, from diagnosis of disease to targeted delivery of drugs. Broad-spectrum antiviral and antimicrobial activities of nanoparticles are also well evident. The ratio of nanoparticles surface area to their volume is high and that allows them to be an advantageous vehicle of drugs in many respects. Effective uses of various materials for the synthesis of nanoparticles impart much specificity in them to meet the requirements of specific therapeutic strategies. The potential therapeutic use of nanoparticles and their mechanisms of action against infections from bacteria, fungi and viruses were the focus of this review. Further, their potential advantages, drawbacks, limitations and side effects are also included here. Researchers are characterizing the exposure pathways of nano-medicines that may cause serious toxicity to the subjects or the environment. Indeed, societal ethical issues in using nano-medicines pose a serious question to scientists beyond anything.
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How green desalination via SMRs is? A techno-environmental assessment of conceptual designs for MED-TVC and RO hybrid desalination. PROGRESS IN NUCLEAR ENERGY 2023. [DOI: 10.1016/j.pnucene.2023.104607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
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Kang MG, Khan F, Tabassum N, Cho KJ, Jo DM, Kim YM. Inhibition of Biofilm and Virulence Properties of Pathogenic Bacteria by Silver and Gold Nanoparticles Synthesized from Lactiplantibacillus sp. Strain C1. ACS OMEGA 2023; 8:9873-9888. [PMID: 36969455 PMCID: PMC10035013 DOI: 10.1021/acsomega.2c06789] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 02/01/2023] [Indexed: 06/18/2023]
Abstract
The emergence of antibiotic resistance in microbial pathogens necessitates the development of alternative ways to combat the infections that arise. The current study used nanotechnology as an alternate technique to control virulence characteristics and biofilm development in Pseudomonas aeruginosa and Staphylococcus aureus. Furthermore, based on the acceptance and biocompatibility of the probiotic bacteria, we chose a lactic acid bacteria (LAB) for synthesizing two types of metallic nanoparticles (NPs) in this study. Using molecular techniques, the LAB strain C1 was isolated from Kimchi food samples and identified as Lactiplantibacillus sp. strain C1. The prepared supernatant from strain C1 was used to produce gold nanoparticles (AuNPs) and silver nanoparticles (AgNPs). C1-AuNPs and C1-AgNPs were characterized physiochemically using a variety of instruments. C1-AuNPs and C1-AgNPs had spherical shapes and sizes of 100.54 ± 14.07 nm (AuNPs) and 129.51 ± 12.31 nm (AgNPs), respectively. C1-AuNPs and C1-AgNPs were discovered to have high zeta potentials of -23.29 ± 1.17 and -30.57 ± 0.29 mV, respectively. These nanoparticles have antibacterial properties against several bacterial pathogens. C1-AuNPs and C1-AgNPs significantly inhibited the initial stage biofilm formation and effectively eradicated established mature biofilms of P. aeruginosa and S. aureus. Furthermore, when P. aeruginosa was treated with sub-MIC levels of C1-AuNPs and C1-AgNPs, their different virulence features were significantly reduced. Both NPs greatly inhibited the hemolytic activity of S. aureus. The inhibition of P. aeruginosa and S. aureus biofilms and virulence features by C1-AuNPs and C1-AgNPs can be regarded as viable therapeutic strategies for preventing infections caused by these bacteria.
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Affiliation(s)
- Min-Gyun Kang
- Department
of Food Science and Technology, Pukyong
National University, Busan 48513, Republic of Korea
| | - Fazlurrahman Khan
- Marine
Integrated Biomedical Technology Center, The National Key Research
Institutes in Universities, Pukyong National
University, Busan 48513, Republic of Korea
- Research
Center for Marine Integrated Bionics Technology, Pukyong National University, Busan 48513, Republic of Korea
| | - Nazia Tabassum
- Marine
Integrated Biomedical Technology Center, The National Key Research
Institutes in Universities, Pukyong National
University, Busan 48513, Republic of Korea
- Research
Center for Marine Integrated Bionics Technology, Pukyong National University, Busan 48513, Republic of Korea
| | - Kyung-Jin Cho
- Department
of Food Science and Technology, Pukyong
National University, Busan 48513, Republic of Korea
| | - Du-Min Jo
- Department
of Food Science and Technology, Pukyong
National University, Busan 48513, Republic of Korea
- Marine
Integrated Biomedical Technology Center, The National Key Research
Institutes in Universities, Pukyong National
University, Busan 48513, Republic of Korea
- Research
Center for Marine Integrated Bionics Technology, Pukyong National University, Busan 48513, Republic of Korea
| | - Young-Mog Kim
- Department
of Food Science and Technology, Pukyong
National University, Busan 48513, Republic of Korea
- Marine
Integrated Biomedical Technology Center, The National Key Research
Institutes in Universities, Pukyong National
University, Busan 48513, Republic of Korea
- Research
Center for Marine Integrated Bionics Technology, Pukyong National University, Busan 48513, Republic of Korea
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Abdelghafar A, Yousef N, Askoura M. Zinc oxide nanoparticles reduce biofilm formation, synergize antibiotics action and attenuate Staphylococcus aureus virulence in host; an important message to clinicians. BMC Microbiol 2022; 22:244. [PMID: 36221053 PMCID: PMC9552502 DOI: 10.1186/s12866-022-02658-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 09/30/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Biofilm-related infections are difficult to be treated because of higher resistance to antimicrobial agents. Current study aims to characterize the influence of zinc oxide nanoparticles (ZnO-NPs) on both S. aureus susceptibility to antibiotics and pathogenesis. METHODS The influence of ZnO-NPs on biofilm formation by S. aureus was characterized by the crystal violet and tube assay. The synergistic effect of ZnO-NPs in combination with antibiotics on S. aureus was characterized using the checkerboard method. The effect of ZnO-NPs on S. aureus cell surface hydrophobicity and blood hemolysis was investigated. RT-qPCR was used to investigate the effect of ZnO-NPs on the expression of biofilm related genes (icaA, icaR and sarA), katA and sigB. The impact of ZnO-NPs on S. aureus pathogenesis was evaluated using mice infection model. RESULTS ZnO-NPs exhibited a good antibiofilm activity against S. aureus. The findings indicate a synergistic antibiofilm effect of combination between ZnO-NPs and tested antibiotics. ZnO-NPs were capable of decreasing S. aureus cell surface hydrophobicity which could account for observed decrease in bacterial biofilm forming capacity. Moreover, ZnO-NPs-treated bacteria exhibited a significant decrease in blood hemolysis relative to control untreated S. aureus. The expression of biofilm related genes was significantly repressed in ZnO-NPs treated bacteria as compared to untreated cells. Finally, the effect of ZnO-NPs on S. aureus pathogenesis was investigated using mice infection model where ZnO-NPs accelerated healing of wounds in mice as compared to control untreated mice. CONCLUSIONS Present data support the efficiency of ZnO-NPs as antibiofilm agent in treatment of S. aureus infections. This study recommends the incorporation of ZnO-NPs as adjuvant with other antibiotics targeting S. aureus based on the promising findings obtained herein in order to control infection with this pathogen.
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Affiliation(s)
- Aliaa Abdelghafar
- Department of Microbiology and Immunology, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt
| | - Nehal Yousef
- Department of Microbiology and Immunology, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt
| | - Momen Askoura
- Department of Microbiology and Immunology, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt.
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Lange A, Sawosz E, Daniluk K, Wierzbicki M, Małolepszy A, Gołębiewski M, Jaworski S. Bacterial Surface Disturbances Affecting Cell Function during Exposure to Three-Compound Nanocomposites Based on Graphene Materials. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3058. [PMID: 36080095 PMCID: PMC9459733 DOI: 10.3390/nano12173058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 08/19/2022] [Accepted: 08/30/2022] [Indexed: 06/15/2023]
Abstract
Combating pathogenic microorganisms in an era of ever-increasing drug resistance is crucial. The aim of the study was to evaluate the antibacterial mechanism of three-compound nanocomposites that were based on graphene materials. To determine the nanomaterials' physicochemical properties, an analysis of the mean hydrodynamic diameter and zeta potential, transmission electron microscope (TEM) visualization and an FT-IR analysis were performed. The nanocomposites' activity toward bacteria species was defined by viability, colony forming units, conductivity and surface charge, cell wall integrity, ATP concentration, and intracellular pH. To ensure the safe usage of nanocomposites, the presence of cytokines was also analyzed. Both the graphene and graphene oxide (GO) nanocomposites exhibited a high antibacterial effect toward all bacteria species (Enterobacter cloacae, Listeria monocytogenes, Salmonella enterica, and Staphylococcus aureus), as well as exceeded values obtained from exposure to single nanoparticles. Nanocomposites caused the biggest membrane damage, along with ATP depletion. Nanocomposites that were based on GO resulted in lower toxicity to the cell line. In view of the many aspects that must be considered when investigating such complex structures as are three-component nanocomposites, studies of their mechanism of action are crucial to their potential antibacterial use.
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Affiliation(s)
- Agata Lange
- Department of Nanobiotechnology, Institute of Biology, Warsaw University of Life Sciences, 02-786 Warsaw, Poland
| | - Ewa Sawosz
- Department of Nanobiotechnology, Institute of Biology, Warsaw University of Life Sciences, 02-786 Warsaw, Poland
| | - Karolina Daniluk
- Department of Nanobiotechnology, Institute of Biology, Warsaw University of Life Sciences, 02-786 Warsaw, Poland
| | - Mateusz Wierzbicki
- Department of Nanobiotechnology, Institute of Biology, Warsaw University of Life Sciences, 02-786 Warsaw, Poland
| | - Artur Małolepszy
- Faculty of Chemical and Process Engineering, Warsaw University of Technology, 00-654 Warsaw, Poland
| | - Marcin Gołębiewski
- Department of Animal Breeding, Institute of Animal Sciences, Warsaw University of Life Sciences, 02-786 Warsaw, Poland
| | - Sławomir Jaworski
- Department of Nanobiotechnology, Institute of Biology, Warsaw University of Life Sciences, 02-786 Warsaw, Poland
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