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Shakerdarabad R, Mohabatkar H, Behbahani M, Dini G. Antibiofilm and antibacterial activities of green synthesized ZnO nanoparticles against Erwinia amylovora and Pseudomonas syringae pv. Syringae: in vitro and in silico investigations. Microb Pathog 2024; 196:107011. [PMID: 39396688 DOI: 10.1016/j.micpath.2024.107011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2024] [Revised: 09/21/2024] [Accepted: 10/10/2024] [Indexed: 10/15/2024]
Abstract
Today, many infections in plants are related to biofilm-developing bacteria. These infections can result in severe agricultural losses. Thus, this study aims to investigate the synergistic antibiofilm activity of Thymus vulgaris extract on the inherent antibacterial properties of ZnO nanoparticles against Erwinia amylovora and Pseudomonas syringae pv. syringae. Additionally, to gain insight into the molecular mechanisms of phytocompounds' antibacterial activity, the molecular interactions of T. vulgaris phytochemicals with the TolC protein and TonB-dependent siderophore receptor were investigated through in-silico studies. Green-synthesized ZnO NPs (ZnO@GS) and chemically synthesized ZnO (ZnO@CHS) were evaluated using XRD and SEM techniques, showing a crystalline structure for both powders with average sizes of 50, and 40 nm, respectively. According to FT-IR and EDS spectroscopy, ZnO@GS was covered with thyme extract. Based on the in vitro results, all samples of ZnO NPs exhibited considerable antibacterial activity against both bacteria. At the same time, thyme aqueous extract alone proved considerably less effective at all tested concentrations. Compared to ZnO@CHS and thyme extract, the antibacterial efficacy of ZnO@GS against E. amylovora (MIC = 512 μg/mL) and P. syringae pv. syringae (MIC = 256 μg/mL) was significantly improved upon surface covering with thyme phytocompounds. Moreover, their antibiofilm properties were enhanced by almost 20% compared to ZnO@CHS. In addition, molecular docking investigations showed that most of the phytocompounds could form stable interactions with the TonB-dependent siderophore receptor (P. syringae) plug domain and the TolC (E. amylovora) external channel. In vitro and in silico studies demonstrate that using the green approach for synthesizing ZnO NPs via thyme extract can notably boost its antibacterial and antibiofilm effects on the tested phytopathogenic bacteria.
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Affiliation(s)
- Roozbeh Shakerdarabad
- Department of Biotechnology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan 81746-73441, Iran
| | - Hassan Mohabatkar
- Department of Biotechnology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan 81746-73441, Iran.
| | - Mandana Behbahani
- Department of Biotechnology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan 81746-73441, Iran
| | - Ghasem Dini
- Department of Nanotechnology, Faculty of Chemistry, University of Isfahan, Isfahan 81746-73441, Iran.
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Karthikeyan A, Gopinath N, Nair BG. Ecofriendly biosynthesis of copper nanoparticles from novel marine S. rhizophila species for enhanced antibiofilm, antimicrobial and antioxidant potential. Microb Pathog 2024; 194:106836. [PMID: 39103127 DOI: 10.1016/j.micpath.2024.106836] [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: 03/26/2024] [Revised: 07/23/2024] [Accepted: 08/01/2024] [Indexed: 08/07/2024]
Abstract
Marine microorganisms offer a promising avenue for the eco-friendly synthesis of nanoparticles due to their unique biochemical capabilities and adaptability to various environments. This study focuses on exploring the potential of a marine bacterial species, Stenotrophomonas rhizophila BGNAK1, for the synthesis of biocompatible copper nanoparticles and their application for hindering biofilms formed by monomicrobial species. The study begins with the isolation of the novel marine S. rhizophila species from marine soil samples collected from the West coast region of Kerala, India. The isolated strain is identified through 16S rRNA gene sequencing and confirmed to be S. rhizophila species. Biosynthesis of copper nanoparticles using S. rhizophila results in the formation of nanoparticles with size of range 10-50 nm. The nanoparticles exhibit a face-centered cubic crystal structure of copper, as confirmed by X-Ray Diffraction analysis. Furthermore, the synthesized nanoparticles display significant antimicrobial activity against various pathogenic bacteria and yeast. The highest inhibitory activity was against Staphylococcus aureus with a zone of 27 ± 1.00 mm and the least activity was against Pseudomonas aeruginosa with a zone of 22 ± 0.50 mm. The zone of inhibition against Candida albicans was 16 ± 0.60 mm. The antibiofilm activity against biofilm-forming clinical pathogens was evidenced by the antibiofilm assay and SEM images. Additionally, the copper nanoparticles exhibit antioxidant activity, as evidenced by their scavenging ability against DPPH, hydroxyl, nitric oxide, and superoxide radicals, as well as their reducing power in the FRAP assay. The study highlights the potential of the marine bacterium S. rhizophila BGNAK1 for the eco-friendly biosynthesis of copper nanoparticles with diverse applications. Synthesized nanoparticles exhibit promising antibiofilm, antimicrobial, and antioxidant properties, suggesting their potential utility in various fields such as medicine, wastewater treatment, and environmental remediation.
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Affiliation(s)
- Akash Karthikeyan
- Department of Bioscience and Engineering, National Institute of Technology Calicut, NIT PO, Kozhikode, 673601, India
| | - Nigina Gopinath
- Department of Bioscience and Engineering, National Institute of Technology Calicut, NIT PO, Kozhikode, 673601, India
| | - Baiju G Nair
- Department of Bioscience and Engineering, National Institute of Technology Calicut, NIT PO, Kozhikode, 673601, India.
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3
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Bagheri-Josheghani S, Saffari M, Radaei T, Mirzaei H, Rashki S, Fatemi-Nasab ZS, Derakhshan-Nezhad E, Bakhshi B. The effect of mesenchymal stem cell conditioned medium incorporated within chitosan nanostructure in clearance of common gastroenteritis bacteria in-vitro and in-vivo. Sci Rep 2024; 14:14274. [PMID: 38902286 PMCID: PMC11190150 DOI: 10.1038/s41598-024-64465-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Accepted: 06/10/2024] [Indexed: 06/22/2024] Open
Abstract
Gastroenteritis infection is a major public health concern worldwide, especially in developing countries due to the high annual mortality rate. The antimicrobial and antibiofilm activity of human mesenchymal stem cell-derived conditioned medium (hMSCsCM) encapsulated in chitosan nanoparticles (ChNPs) was studied in vitro and in vivo against common gastroenteritis bacteria. The synthesized ChNPs were characterized using Zeta potential, scanning electron microscopy (SEM), and dynamic light scattering (DLS) techniques. HMSC-derived conditioned medium incorporated into chitosan NPs (hMSCsCM-ChNPs) composite was fabricated by chitosan nanoparticles loaded with BM-MSCs (positive for CD73 and CD44 markers). The antimicrobial and antibiofilm activity of composite was investigated against four common gastroenteritis bacteria (Campylobacter jejuni ATCC29428, Salmonella enteritidis ATCC13076, Shigella dysenteriae PTCC1188, and E. coli ATCC25922) in-vitro and in-vivo. Majority of ChNPs (96%) had an average particle size of 329 nm with zeta potential 7.08 mV. The SEM images confirmed the synthesis of spherical shape for ChNPs and a near-spherical shape for hMSCsCM-ChNPs. Entrapment efficiency of hMSCsCM-ChNPs was 75%. Kinetic profiling revealed that the release rate of mesenchymal stem cells was reduced following the pH reduction. The antibacterial activity of hMSCsCM-ChNPs was significantly greater than that of hMSCsCM and ChNPs at dilutions of 1:2 to 1:8 (P < 0.05) against four common gastroenteritis bacteria. The number of bacteria present decreased more significantly in the group of mice treated with the hMSCsCM-ChNPs composite than in the groups treated with hMSCsCM and ChNPs. The antibacterial activity of hMSCsCM against common gastroenteritis bacteria in an in vivo assay decreased from > 106 CFU/ml to approximately (102 to 10) after 72 h. Both in vitro and in vivo assays demonstrated the antimicrobial and antibiofilm activities of ChNPs at a concentration of 0.1% and hMSCsCM at a concentration of 1000 μg/ml to be inferior to that of hMSCsCM-ChNPs (1000 μg/ml + 0.1%) composite. These results indicated the existence of a synergistic effect between ChNPs and hMSCsCM. The designed composite exhibited notable antibiofilm and antibacterial activities, demonstrating optimal release in simulated intestinal lumen conditions. The utilization of this composite is proposed as a novel treatment approach to combat gastroenteritis bacteria in the context of more challenging infections.
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Affiliation(s)
| | - Mahmood Saffari
- Infectious Diseases Research Center, Kashan University of Medical Sciences, Kashan, Iran
- Department of Microbiology and Immunology, Faculty of Medicine, Kashan University of Medical Sciences, Kashan, Iran
| | - Tooba Radaei
- Department of Medical Bacteriology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, IR, Iran
| | - Hamed Mirzaei
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Somaye Rashki
- Student Research Committee, Kashan University of Medical Sciences, Kashan, Iran
- Department of Clinical Microbiology, Iranshahr University of Medical Sciences, Iranshahr, Iran
| | - Zahra Sadat Fatemi-Nasab
- Department of Microbiology and Immunology, Faculty of Medicine, Kashan University of Medical Sciences, Kashan, Iran
| | | | - Bita Bakhshi
- Department of Medical Bacteriology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, IR, Iran.
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Mancuso G, Trinchera M, Midiri A, Zummo S, Vitale G, Biondo C. Novel Antimicrobial Approaches to Combat Bacterial Biofilms Associated with Urinary Tract Infections. Antibiotics (Basel) 2024; 13:154. [PMID: 38391540 PMCID: PMC10886225 DOI: 10.3390/antibiotics13020154] [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: 01/16/2024] [Revised: 01/31/2024] [Accepted: 02/02/2024] [Indexed: 02/24/2024] Open
Abstract
Urinary tract infections (UTIs) are prevalent bacterial infections in both community and healthcare settings. They account for approximately 40% of all bacterial infections and require around 15% of all antibiotic prescriptions. Although antibiotics have traditionally been used to treat UTIs for several decades, the significant increase in antibiotic resistance in recent years has made many previously effective treatments ineffective. Biofilm on medical equipment in healthcare settings creates a reservoir of pathogens that can easily be transmitted to patients. Urinary catheter infections are frequently observed in hospitals and are caused by microbes that form a biofilm after a catheter is inserted into the bladder. Managing infections caused by biofilms is challenging due to the emergence of antibiotic resistance. Biofilms enable pathogens to evade the host's innate immune defences, resulting in long-term persistence. The incidence of sepsis caused by UTIs that have spread to the bloodstream is increasing, and drug-resistant infections may be even more prevalent. While the availability of upcoming tests to identify the bacterial cause of infection and its resistance spectrum is critical, it alone will not solve the problem; innovative treatment approaches are also needed. This review analyses the main characteristics of biofilm formation and drug resistance in recurrent uropathogen-induced UTIs. The importance of innovative and alternative therapies for combatting biofilm-caused UTI is emphasised.
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Affiliation(s)
- Giuseppe Mancuso
- Department of Human Pathology, University of Messina, 98125 Messina, Italy
| | - Marilena Trinchera
- Department of Human Pathology, University of Messina, 98125 Messina, Italy
| | - Angelina Midiri
- Department of Human Pathology, University of Messina, 98125 Messina, Italy
| | - Sebastiana Zummo
- Department of Human Pathology, University of Messina, 98125 Messina, Italy
| | - Giulia Vitale
- Department of Human Pathology, University of Messina, 98125 Messina, Italy
| | - Carmelo Biondo
- Department of Human Pathology, University of Messina, 98125 Messina, Italy
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Liang Y, Wang B, Yu Q, Wang W, Ge S, Shao J. Ebselen Optimized the Therapeutic Effects of Silver Nanoparticles for Periodontal Treatment. Int J Nanomedicine 2023; 18:8113-8130. [PMID: 38169981 PMCID: PMC10759458 DOI: 10.2147/ijn.s434579] [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: 08/09/2023] [Accepted: 12/14/2023] [Indexed: 01/05/2024] Open
Abstract
Objective Silver nanoparticles (AgNPs) possess excellent antibacterial effects on periodontal pathogens, but their clinical application is limited mainly due to their cytotoxicity through inducing oxidative stress in human cells. Ebselen disrupts the reactive oxygen species (ROS) scavenging in bacteria and relieves oxidative stress in mammalian cells. This study aimed to assess the antibacterial and anti-inflammatory effects of AgNPs and ebselen as well as the protective effect of ebselen, to further provide the theoretical basis for their future application in periodontal treatment. Methods The antibacterial and anti-biofilm effects of the synthesized AgNPs combined with ebselen were assessed on Porphyromonas gingivalis (P. gingivalis), Streptococcus gordonii (S. gordonii), and Fusobacterium nucleatum (F. nucleatum) in planktonic condition and as biofilms. In addition, the intracellular bactericidal efficiency of AgNPs and ebselen was evaluated in P. gingivalis-infected human gingival fibroblasts (HGFs). The cytotoxicity, intracellular ROS levels, and potential antioxidative enzymes were detected in HGFs treated with AgNPs and ebselen. Further, the anti-inflammatory effects were evaluated by in vitro and in vivo experiments. Results The combination of AgNPs and ebselen showed excellent antibacterial effects against planktonic P. gingivalis and F. nucleatum and synergistic antibiofilm effects on all mono- and multi-species biofilms. In addition, ebselen significantly enhanced the intracellular bactericidal efficiency of AgNPs. Furthermore, ebselen combined with up to 20 μg/mL AgNPs showed no obvious cytotoxicity to HGFs. Evidently, ebselen alleviated the AgNPs-induced ROS by increasing the levels of glutathione and superoxide dismutase 2. Moreover, AgNPs and ebselen together declined the release of P. gingivalis-stimulated inflammatory cytokines both in vitro and in vivo, and reduced alveolar bone resorption effectively. Conclusion AgNPs combined with ebselen would be an effective adjuvant for periodontal treatment owing to their synergistic antibacterial and anti-inflammatory effects.
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Affiliation(s)
- Ye Liang
- Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University, Jinan, 250012, People’s Republic of China
- Shandong Key Laboratory of Oral Tissue Regeneration, School of Stomatology, Shandong University, Jinan, 250012, People’s Republic of China
- Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration, School of Stomatology, Shandong University, Jinan, 250012, People’s Republic of China
- Shandong Provincial Clinical Research Center for Oral Diseases, School of Stomatology, Shandong University, Jinan, 250012, People’s Republic of China
| | - Bing Wang
- Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University, Jinan, 250012, People’s Republic of China
- Shandong Key Laboratory of Oral Tissue Regeneration, School of Stomatology, Shandong University, Jinan, 250012, People’s Republic of China
- Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration, School of Stomatology, Shandong University, Jinan, 250012, People’s Republic of China
- Shandong Provincial Clinical Research Center for Oral Diseases, School of Stomatology, Shandong University, Jinan, 250012, People’s Republic of China
| | - Qing Yu
- Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University, Jinan, 250012, People’s Republic of China
- Shandong Key Laboratory of Oral Tissue Regeneration, School of Stomatology, Shandong University, Jinan, 250012, People’s Republic of China
- Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration, School of Stomatology, Shandong University, Jinan, 250012, People’s Republic of China
- Shandong Provincial Clinical Research Center for Oral Diseases, School of Stomatology, Shandong University, Jinan, 250012, People’s Republic of China
| | - Weijia Wang
- Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University, Jinan, 250012, People’s Republic of China
- Shandong Key Laboratory of Oral Tissue Regeneration, School of Stomatology, Shandong University, Jinan, 250012, People’s Republic of China
- Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration, School of Stomatology, Shandong University, Jinan, 250012, People’s Republic of China
- Shandong Provincial Clinical Research Center for Oral Diseases, School of Stomatology, Shandong University, Jinan, 250012, People’s Republic of China
| | - Shaohua Ge
- Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University, Jinan, 250012, People’s Republic of China
- Shandong Key Laboratory of Oral Tissue Regeneration, School of Stomatology, Shandong University, Jinan, 250012, People’s Republic of China
- Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration, School of Stomatology, Shandong University, Jinan, 250012, People’s Republic of China
- Shandong Provincial Clinical Research Center for Oral Diseases, School of Stomatology, Shandong University, Jinan, 250012, People’s Republic of China
| | - Jinlong Shao
- Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University, Jinan, 250012, People’s Republic of China
- Shandong Key Laboratory of Oral Tissue Regeneration, School of Stomatology, Shandong University, Jinan, 250012, People’s Republic of China
- Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration, School of Stomatology, Shandong University, Jinan, 250012, People’s Republic of China
- Shandong Provincial Clinical Research Center for Oral Diseases, School of Stomatology, Shandong University, Jinan, 250012, People’s Republic of China
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Fadel BA, Elwakil BH, Fawzy EE, Shaaban MM, Olama ZA. Nanoemulsion of Lavandula angustifolia Essential Oil/Gold Nanoparticles: Antibacterial Effect against Multidrug-Resistant Wound-Causing Bacteria. Molecules 2023; 28:6988. [PMID: 37836831 PMCID: PMC10574385 DOI: 10.3390/molecules28196988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 10/04/2023] [Accepted: 10/04/2023] [Indexed: 10/15/2023] Open
Abstract
Hospitalized patients are severely impacted by delayed wound healing. Recently, there has been a growing focus on enhancing wound healing using suitable dressings. Lavandula angustifolia essential oil (LEO) showed potential antibacterial, anti-inflammatory, and wound healing properties. However, the prepared gold nanoparticles possessed multifunctional properties. Consequently, the present investigation aimed to synthesize a novel nanosystem consisting of nano-Lavandula angustifolia essential oil and gold nanoparticles prepared through ultrasonic nanoemulsifying techniques in order to promote wound healing and combat bacterial infection. LEO showed potent antibacterial activity against Klebsiella pneumoniae, MRSA and Staphylococcus aureus with minimum inhibitory concentration (MIC) values of 32, 16 and 16 µg/mL, respectively, while exhibiting low activity against Proteus mirabilis. Interestingly, the newly formulated nano-gold/nano-Lavandula angustifolia penetrated the preformed P. mirabilis biofilm with a full eradication of the microbial cells, with MIC and MBEC (minimal biofilm eradication concentration) values reaching 8 and 16 µg/mL, respectively. The cytotoxic effect of the novel nanoformula was also assessed against WI-38 fibroblasts vero (normal) cells (IC50 = 0.089 mg/mL) while nano-gold and nano-Lavandula angustifolia showed higher results (IC50 = 0.529, and 0.209 mg/mL, respectively). Nano-gold/nano-Lavandula angustifolia formula possessed a powerful wound healing efficacy with a 96.78% wound closure. These findings revealed that nano-gold/nano-Lavandula angustifolia nanoemulsion can inhibit bacterial growth and accelerate the wound healing rate.
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Affiliation(s)
- Balqis A. Fadel
- Department of Botany & Microbiology, Faculty of Science, Alexandria University, Alexandria 21568, Egypt (E.E.F.)
| | - Bassma H. Elwakil
- Department of Medical Laboratory Technology, Faculty of Applied Health Sciences Technology, Pharos University in Alexandria, Alexandria 21526, Egypt
| | - Esraa E. Fawzy
- Department of Botany & Microbiology, Faculty of Science, Alexandria University, Alexandria 21568, Egypt (E.E.F.)
| | - Marwa M. Shaaban
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Alexandria University, Alexandria 21521, Egypt;
| | - Zakia A. Olama
- Department of Botany & Microbiology, Faculty of Science, Alexandria University, Alexandria 21568, Egypt (E.E.F.)
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Mejía-Manzano LA, Vázquez-Villegas P, Prado-Cervantes LV, Franco-Gómez KX, Carbajal-Ocaña S, Sotelo-Cortés DL, Atehortúa-Benítez V, Delgado-Rodríguez M, Membrillo-Hernández J. Advances in Material Modification with Smart Functional Polymers for Combating Biofilms in Biomedical Applications. Polymers (Basel) 2023; 15:3021. [PMID: 37514410 PMCID: PMC10383963 DOI: 10.3390/polym15143021] [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: 06/15/2023] [Revised: 07/09/2023] [Accepted: 07/09/2023] [Indexed: 07/30/2023] Open
Abstract
Biofilms as living microorganism communities are found anywhere, and for the healthcare sector, these constitute a threat and allied mechanism for health-associated or nosocomial infections. This review states the basis of biofilms and their formation. It focuses on their relevance for the biomedical sector, generalities, and the major advances in modified or new synthesized materials to prevent or control biofilm formation in biomedicine. Biofilm is conceptualized as an aggregate of cells highly communicated in an extracellular matrix, which the formation obeys to molecular and genetic basis. The biofilm offers protection to microorganisms from unfavorable environmental conditions. The most frequent genera of microorganisms forming biofilms and reported in infections are Staphylococcus spp., Escherichia spp., and Candida spp. in implants, heart valves, catheters, medical devices, and prostheses. During the last decade, biofilms have been most commonly related to health-associated infections and deaths in Europe, the United States, and Mexico. Smart, functional polymers are materials capable of responding to diverse stimuli. These represent a strategy to fight against biofilms through the modification or synthesis of new materials. Polypropylene and poly-N-isopropyl acrylamide were used enough in the literature analysis performed. Even smart polymers serve as delivery systems for other substances, such as antibiotics, for biofilm control.
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Affiliation(s)
- Luis Alberto Mejía-Manzano
- School of Engineering and Sciences, Tecnologico de Monterrey, Monterrey 64700, Mexico
- Institute for the Future of Education, Tecnologico de Monterrey, Monterrey 64700, Mexico
| | - Patricia Vázquez-Villegas
- School of Engineering and Sciences, Tecnologico de Monterrey, Monterrey 64700, Mexico
- Institute for the Future of Education, Tecnologico de Monterrey, Monterrey 64700, Mexico
| | | | | | - Susana Carbajal-Ocaña
- School of Engineering and Sciences, Tecnologico de Monterrey, Monterrey 64700, Mexico
| | | | | | | | - Jorge Membrillo-Hernández
- School of Engineering and Sciences, Tecnologico de Monterrey, Monterrey 64700, Mexico
- Institute for the Future of Education, Tecnologico de Monterrey, Monterrey 64700, Mexico
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8
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Chin JD, Zhao L, Mayberry TG, Cowan BC, Wakefield MR, Fang Y. Photodynamic Therapy, Probiotics, Acetic Acid, and Essential Oil in the Treatment of Chronic Wounds Infected with Pseudomonas aeruginosa. Pharmaceutics 2023; 15:1721. [PMID: 37376169 PMCID: PMC10301549 DOI: 10.3390/pharmaceutics15061721] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 06/05/2023] [Accepted: 06/07/2023] [Indexed: 06/29/2023] Open
Abstract
As a prevalent medical problem that burdens millions of patients across the world, chronic wounds pose a challenge to the healthcare system. These wounds, often existing as a comorbidity, are vulnerable to infections. Consequently, infections hinder the healing process and complicate clinical management and treatment. While antibiotic drugs remain a popular treatment for infected chronic wounds, the recent rise of antibiotic-resistant strains has hastened the need for alternative treatments. Future impacts of chronic wounds are likely to increase with aging populations and growing obesity rates. With the need for more effective novel treatments, promising research into various wound therapies has seen an increased demand. This review summarizes photodynamic therapy, probiotics, acetic acid, and essential oil studies as developing antibiotic-free treatments for chronic wounds infected with Pseudomonas aeruginosa. Clinicians may find this review informative by gaining a better understanding of the state of current research into various antibiotic-free treatments. Furthermore. this review provides clinical significance, as clinicians may seek to implement photodynamic therapy, probiotics, acetic acid, or essential oils into their own practice.
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Affiliation(s)
- Jaeson D. Chin
- Department of Microbiology, Immunology & Pathology, Des Moines University, Des Moines, IA 50312, USA
| | - Lei Zhao
- The Department of Respiratory Medicine, The Second People’s Hospital of Hefei and Hefei Hospital Affiliated to Anhui Medical University, Hefei 230002, China
| | - Trenton G. Mayberry
- Department of Surgery, University of Missouri School of Medicine, Columbia, MO 65212, USA
| | - Braydon C. Cowan
- Department of Surgery, University of Missouri School of Medicine, Columbia, MO 65212, USA
| | - Mark R. Wakefield
- Department of Surgery, University of Missouri School of Medicine, Columbia, MO 65212, USA
- Ellis Fischel Cancer Center, University of Missouri, Columbia, MO 65212, USA
| | - Yujiang Fang
- Department of Microbiology, Immunology & Pathology, Des Moines University, Des Moines, IA 50312, USA
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9
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Ellboudy NM, Elwakil BH, Shaaban MM, Olama ZA. Cinnamon Oil-Loaded Nanoliposomes with Potent Antibacterial and Antibiofilm Activities. Molecules 2023; 28:molecules28114492. [PMID: 37298980 DOI: 10.3390/molecules28114492] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 05/26/2023] [Accepted: 05/31/2023] [Indexed: 06/12/2023] Open
Abstract
Despite recent scientific advances, the global load of bacterial disease remains high and has been established against a backdrop of increasing antimicrobial resistance. Therefore, there is a pressing need for highly effective and natural antibacterial agents. In the present work, the antibiofilm effect provided by essential oils was evaluated. Of these, cinnamon oil extract showed potent antibacterial and antibiofilm activities against Staphylococcus aureus at an MBEC of 75.0 µg/mL. It was revealed that benzyl alcohol, 2-propenal-3-phenyl, hexadecenoic acid, and oleic acid were the major components of the tested cinnamon oil extract. In addition, the interaction between the cinnamon oil and colistin showed a synergistic effect against S. aureus. Cinnamon oil that had been combined with colistin was encapsulated by liposomes to enhance the essential oil's chemical stability, demonstrating a particle size of 91.67 nm, a PDI of 0.143, a zeta potential of -0.129 mV, and an MBEC of 50.0 µg/mL against Staphylococcus aureus. Scanning electron microscopy was employed to observe the morphological changes in the Staphylococcus aureus biofilm that was treated with the encapsulated cinnamon oil extract/colistin. As a natural and safe option, cinnamon oil exhibited satisfactory antibacterial and antibiofilm performance. The application of liposomes further improved the stability of the antibacterial agents and extended the essential oil release profile.
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Affiliation(s)
- Neveen M Ellboudy
- Department of Botany & Microbiology, Faculty of Science, Alexandria University, Alexandria 21568, Egypt
| | - Bassma H Elwakil
- Department of Medical Laboratory Technology, Faculty of Applied Health Sciences Technology, Pharos University in Alexandria, Alexandria 21500, Egypt
| | - Marwa M Shaaban
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Alexandria University, Alexandria 21568, Egypt
| | - Zakia A Olama
- Department of Botany & Microbiology, Faculty of Science, Alexandria University, Alexandria 21568, Egypt
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Khairan K, Hasan M, Idroes R, Diah M. Fabrication and Evaluation of Polyvinyl Alcohol/Corn Starch/Patchouli Oil Hydrogel Films Loaded with Silver Nanoparticles Biosynthesized in Pogostemon cablin Benth Leaves' Extract. Molecules 2023; 28:molecules28052020. [PMID: 36903266 PMCID: PMC10004108 DOI: 10.3390/molecules28052020] [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: 01/09/2023] [Revised: 02/07/2023] [Accepted: 02/12/2023] [Indexed: 02/24/2023] Open
Abstract
Research on the manufacture of hydrogel films from polyvinyl alcohol, corn starch, patchouli oil, and silver nanoparticles, (PVA/CS/PO/AgNPs, respectively) was completed. The silver nanoparticles used in this study resulted from green synthesis using local patchouli plants (Pogostemon cablin Benth). Aqueous patchouli leaf extract (APLE) and methanol patchouli leaf extract (MPLE) are used in the synthesis of phytochemicals (green synthesis), which are then blended in the production of PVA/CS/PO/AgNPs hydrogel films, which are then cross linked with glutaraldehyde. The results demonstrated that the hydrogel film was flexible, easy to fold, and free of holes and air bubbles. The presence of hydrogen bonds between the functional groups of PVA, CS, and PO was revealed using FTIR spectroscopy. SEM analysis revealed that the hydrogel film was slightly agglomerated and did not exhibit cracking or pinholes. The analysis of pH, spreadability, gel fraction, and swelling index showed that the resulting PVA/CS/PO/AgNP hydrogel films met expected standards except for the organoleptic properties of the resulting colors, which tended to be slightly darker in color. The formula with silver nanoparticles synthesized in methanolic of patchouli leaf extract (AgMENPs) had the highest thermal stability compared to hydrogel films with silver nanoparticles synthesized in aqueous of patchouli leaf extract (AgAENPs). The hydrogel films can be safely used up to 200 °C. The antibacterial studies revealed that the films inhibited the growth of both Staphylococcus aureus and Staphylococcus epidermis, as determined by the disc diffusion method, with the best antibacterial activity being against Staphylococcus aureus. In conclusion, the hydrogel film F1, loaded with silver nanoparticles biosynthesized in aqueous of patchouli leave extract (AgAENPs) and light fraction of patchouli oil (LFoPO) performed the best activity against both Staphylococcus aureus and Staphylococcus epidermis.
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Affiliation(s)
- Khairan Khairan
- Departement of Pharmacy, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia
- Departement of Chemistry, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia
- Herbal Medicine Research Center, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia
- Ethnoscience Research Center, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia
- PUI-Nilam Aceh-Atsiri Research Centre, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia
- Correspondence:
| | - Miftahul Hasan
- Departement of Pharmacy, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia
| | - Rinaldi Idroes
- Departement of Pharmacy, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia
- Departement of Chemistry, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia
- Herbal Medicine Research Center, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia
| | - Muhammad Diah
- Faculty of Medicine, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia
- Division of Cardiology, Zainoel Abidin Hospital, Banda Aceh 23111, Indonesia
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11
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Antimicrobial and Biofilm Formation Inhibition Properties of Biogenic Silver Nanoparticles Synthesised Using Tuber Extract of Cyperus esculentus. BIONANOSCIENCE 2023. [DOI: 10.1007/s12668-023-01061-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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12
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Umair Wani T, Hamid Rather A, Saleem Khan R, Macossay J, Jadhav AH, Srinivasappa PM, Abdal-hay A, Rather SU, Sheikh FA. Titanium dioxide functionalized multi-walled carbon nanotubes and silver nanoparticles reinforced polyurethane nanofibers as a novel scaffold for tissue engineering applications. J IND ENG CHEM 2023. [DOI: 10.1016/j.jiec.2023.01.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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13
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Xue P, Sang R, Li N, Du S, Kong X, Tai M, Jiang Z, Chen Y. A new approach to overcoming antibiotic-resistant bacteria: Traditional Chinese medicine therapy based on the gut microbiota. Front Cell Infect Microbiol 2023; 13:1119037. [PMID: 37091671 PMCID: PMC10117969 DOI: 10.3389/fcimb.2023.1119037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 01/12/2023] [Indexed: 04/25/2023] Open
Abstract
With the irrational use of antibiotics and the increasing abuse of oral antibiotics, the drug resistance of gastrointestinal pathogens has become a prominent problem in clinical practice. Gut microbiota plays an important role in maintaining human health, and the change of microbiota also affects the activity of pathogenic bacteria. Interfering with antibiotic resistant bacteria by affecting gut microbiota has also become an important regulatory signal. In clinical application, due to the unique advantages of traditional Chinese medicine in sterilization and drug resistance, it is possible for traditional Chinese medicine to improve the gut microbial microenvironment. This review discusses the strategies of traditional Chinese medicine for the treatment of drug-resistant bacterial infections by changing the gut microenvironment, unlocking the interaction between microbiota and drug resistance of pathogenic bacteria.
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Affiliation(s)
- Peng Xue
- Medical School of Nantong University, Nantong, Jiangsu, China
| | - Rui Sang
- Center for Basic Medical Research, Medical School of Nantong University, Nantong, Jiangsu, China
| | - Nan Li
- Department of Histology and Embryology, Medical College, Nantong University, Nantong, Jiangsu, China
| | - Siyuan Du
- Medical School of Nantong University, Nantong, Jiangsu, China
| | - Xiuwen Kong
- Medical School of Nantong University, Nantong, Jiangsu, China
| | - Mingliang Tai
- Medical School of Nantong University, Nantong, Jiangsu, China
| | - Zhihao Jiang
- Center for Basic Medical Research, Medical School of Nantong University, Nantong, Jiangsu, China
| | - Ying Chen
- Department of Histology and Embryology, Medical College, Nantong University, Nantong, Jiangsu, China
- *Correspondence: Ying Chen,
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14
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Metal nanoparticles against multi-drug-resistance bacteria. J Inorg Biochem 2022; 237:111938. [PMID: 36122430 DOI: 10.1016/j.jinorgbio.2022.111938] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 06/21/2022] [Accepted: 07/18/2022] [Indexed: 01/18/2023]
Abstract
Antimicrobial-resistant (AMR) bacterial infections remain a significant public health concern. The situation is exacerbated by the rapid development of bacterial resistance to currently available antimicrobials. Metal nanoparticles represent a new perspective in treating AMR due to their unique mechanisms, such as disrupting bacterial cell membrane potential and integrity, biofilm inhibition, reactive oxygen species (ROS) formation, enhancing host immune responses, and inhibiting RNA and protein synthesis by inducing intracellular processes. Metal nanoparticles (MNPs) properties such as size, shape, surface functionalization, surface charges, and co-encapsulated drug delivery capability all play a role in determining their potential against multidrug-resistant bacterial infections. Silver, gold, zinc oxide, selenium, copper, cobalt, and iron oxide nanoparticles have recently been studied extensively against multidrug-resistant bacterial infections. This review aims to provide insight into the size, shape, surface properties, and co-encapsulation of various MNPs in managing multidrug-resistant bacterial infections.
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15
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Mateo EM, Jiménez M. Silver Nanoparticle-Based Therapy: Can It Be Useful to Combat Multi-Drug Resistant Bacteria? Antibiotics (Basel) 2022; 11:antibiotics11091205. [PMID: 36139984 PMCID: PMC9495113 DOI: 10.3390/antibiotics11091205] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Revised: 09/01/2022] [Accepted: 09/05/2022] [Indexed: 12/04/2022] Open
Abstract
The present review focuses on the potential use of silver nanoparticles in the therapy of diseases caused by antibiotic-resistant bacteria. Such bacteria are known as “superbugs”, and the most concerning species are Acinetobacter baumannii, Pseudomonas aeruginosa, Staphylococcus aureus (methicillin and vancomycin-resistant), and some Enterobacteriaceae. According to the World Health Organization (WHO), there is an urgent need for new treatments against these “superbugs”. One of the possible approaches in the treatment of these species is the use of antibacterial nanoparticles. After a short overview of nanoparticle usage, mechanisms of action, and methods of synthesis of nanoparticles, emphasis has been placed on the use of silver nanoparticles (AgNPs) to combat the most relevant emerging resistant bacteria. The toxicological aspects of the AgNPs, both in vitro using cell cultures and in vivo have been reviewed. It was found that toxic activity of AgNPs is dependent on dose, size, shape, and electrical charge. The mechanism of action of AgNPs involves interactions at various levels such as plasma membrane, DNA replication, inactivation of protein/enzymes necessary, and formation of reactive oxygen species (ROS) leading to cell death. Researchers do not always agree in their conclusions on the topic and more work is needed in this field before AgNPs can be effectively applied in clinical therapy to combat multi-drug resistant bacteria.
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Affiliation(s)
- Eva M. Mateo
- Department of Microbiology and Ecology, Faculty of Medicine and Odontology, Universitat de Valencia, E-46010 Valencia, Spain
- Correspondence:
| | - Misericordia Jiménez
- Department of Microbiology and Ecology, Faculty of Biological Sciences, Universitat de Valencia, E-46100 Valencia, Spain
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16
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Dorgham RA, Abd Al Moaty MN, Chong KP, Elwakil BH. Molasses-Silver Nanoparticles: Synthesis, Optimization, Characterization, and Antibiofilm Activity. Int J Mol Sci 2022; 23:ijms231810243. [PMID: 36142155 PMCID: PMC9499626 DOI: 10.3390/ijms231810243] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 08/29/2022] [Accepted: 08/30/2022] [Indexed: 11/21/2022] Open
Abstract
Biofilms are matrix-enclosed communities of bacteria that are highly resistant to antibiotics. Adding nanomaterials with antibacterial activity to the implant surfaces may be a great solution against biofilm formation. Due to its potent and widespread antibacterial effect, silver nanoparticles were considered the most potent agent with different biological activities. In the present investigation, silver nanoparticles (AgNPs) were newly synthesized as antibiofilm agents using sugarcane process byproduct (molasses) and named Mo-capped AgNPs. The synthesized nanoparticles showed promising antimicrobial activity against S. aureus ATCC 6538 and C. albicans DAY185. Statistically designed optimization through response surface methodology was evaluated for maximum activity and better physical characteristics, namely the nanoparticles’ size and polydispersity index (PDI), and it was revealed that molasses concentration was the main effective factor. Minimal biofilm eradication concentration (MBEC) of Mo-capped AgNPs against S. aureus ATCC 6538 and C. albicans DAY185 was 16 and 32 µg/mL, respectively. Scanning electron microscope study of Mo-capped AgNP-treated biofilm revealed that AgNPs penetrated the preformed biofilm and eradicated the microbial cells. The optimally synthesized Mo-capped AgNPs were spherically shaped, and the average size diameter ranged between 29 and 88 nm with high proportions of Ag+ element (78.0%) recorded. Fourier-transform infrared spectroscopy (FTIR) analysis indicated the importance of molasses ingredients in capping and stabilizing the produced silver nanoparticles.
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Affiliation(s)
- Rabab A. Dorgham
- Botany and Microbiology Department, Faculty of Science, Alexandria University, Alexandria 21568, Egypt
| | | | - Khim Phin Chong
- Faculty of Science and Natural Resources, Universiti Malaysia Sabah, Jalan UMS, Kota Kinabalu 88400, Sabah, Malaysia
- Correspondence: (K.P.C.); (B.H.E.)
| | - Bassma H. Elwakil
- Department of Medical Laboratory Technology, Faculty of Applied Health Sciences Technology, Pharos University in Alexandria, Alexandria 21321, Egypt
- Correspondence: (K.P.C.); (B.H.E.)
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17
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Is Silver the New Gold? A Systematic Review of the Preclinical Evidence of Its Use in Bone Substitutes as Antiseptic. Antibiotics (Basel) 2022; 11:antibiotics11080995. [PMID: 35892385 PMCID: PMC9329868 DOI: 10.3390/antibiotics11080995] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Revised: 07/16/2022] [Accepted: 07/22/2022] [Indexed: 02/01/2023] Open
Abstract
Antibiotic-laden bone substitutes represent a viable option in the treatment of bone and joint infections with bone defects. In particular, the addition of silver ions or silver nanoparticles to bone substitutes to achieve local antiseptic activity could represent a further contribution, also helping to prevent bacterial resistance to antibiotics. An in-depth search of the main scientific databases was performed regarding the use of silver compounds for bone substitution. The available evidence is still limited to the preclinical level: 22 laboratory studies, 2 animal models, and 3 studies, with both in vitro and in vivo analysis, were found on the topic. Numerous biomaterials have been evaluated. In vitro studies confirmed that silver in bone substitutes retains the antibacterial activity already demonstrated in coatings materials. Cytotoxicity was generally found to be low and only related to silver concentrations higher than those sufficient to achieve antibacterial activity. Instead, there are only a few in vivo studies, which appear to confirm antibacterial efficacy, although there is insufficient evidence on the pharmacokinetics and safety profile of the compounds investigated. In conclusion, research on bone substitutes doped with silver is in its early stages, but the preliminary findings seem promising.
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18
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Assessment of Antimicrobial Potential of Plagiochasma rupestre Coupled with Healing Clay Bentonite and AGNPS. BIOMED RESEARCH INTERNATIONAL 2022; 2022:4264466. [PMID: 35880032 PMCID: PMC9308554 DOI: 10.1155/2022/4264466] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 05/19/2022] [Accepted: 05/21/2022] [Indexed: 11/17/2022]
Abstract
The impact of individual component, i.e., plant extract (Plagiochasma rupestre), biosynthesized silver nanoparticles (AgNPs), and healing clay (bentonite) as antimicrobial agent is reported but their combined effect as a ternary system is a new approach. This study is aimed at investigating the impact of the proposed ternary system against selected human pathogens. AgNPs were synthesized by using Plagiochasma rupestre extract (aqueous) as reducing agent and neutral polymer (PVP) as stabilizer. The morphology, size, and structural properties of synthesized AgNPs were determined with XRD and SEM analysis which showed spherical monomodal particles with an average particle size of 25.5 nm. The antibacterial and antifungal activities of the individual and nanoternary system were investigated. The phytochemical screening of plant extract showed the presence of alkaloids, flavonoids, phenol, and glycosides in methanol extract as compare to aqueous and acetone extract. The antimicrobial activities of crude extracts of Plagiochasma rupestre with AgNPs and bentonite clay were studied as an appropriate candidate for treatment of microbial infections, especially bacterial and fungal diseases. The antioxidant activity of Plagiochasma rupestre aqueous extract and nanoparticles was assessed by (DPPH) free radical, and absorbance was checked at 517 nm. Crude extract has inhibitory effect towards bacteria and fungi, and bentonite clay also showed some degree of antimicrobial resistance. Strategy can be efficiently applied for future engineering and medical. The nanoternary systems showed 3 and 3.5 times higher antibacterial and antifungal activity, respectively, in comparison to Plagiochasma rupestre and bentonite clay, individually.
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19
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Khusnetdenova EE, Shakhbazova KY, Saifutdinova AR, Stavitskaya AV. Antibacterial Activity of Silver Nanoparticles Stabilized on the Surface of Natural Aluminosilicate Nanotubes toward Ps. aeruginosa. RUSS J APPL CHEM+ 2022. [DOI: 10.1134/s107042722207014x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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20
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Carica papaya L. Leaves: Deciphering Its Antioxidant Bioactives, Biological Activities, Innovative Products, and Safety Aspects. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:2451733. [PMID: 35720184 PMCID: PMC9203216 DOI: 10.1155/2022/2451733] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 04/23/2022] [Accepted: 04/28/2022] [Indexed: 01/02/2023]
Abstract
The prevalence of viral infections, cancer, and diabetes is increasing at an alarming rate around the world, and these diseases are now considered to be the most serious risks to human well-being in the modern period. There is a widespread practice in Asian countries of using papaya leaves (C. papaya L.) as herbal medicine, either alone or in combination with prescribed medications, to treat a variety of ailments. The importance of conducting the necessary descriptive studies in order to determine the safety of papaya leaf consumption is also emphasized in the context of their application in the healthcare sector. Electronic databases such as Google Scholar, Scopus, and PubMed were used to gather information on papaya leaves, their therapeutic potential, and clinical evidence-based studies. The literature was gathered from publications on papaya leaves, their therapeutic potential, and clinical evidence-based studies. The antidengue, anticancer, antidiabetic, neuroprotective, and anti-inflammatory effects of papaya leaves discussed in this article are supported by evidence from preclinical, in vivo, in vitro, and clinical trial studies, as well as from other sources. Leaves have been investigated for their mechanism of action as well as their potential to be used in the development of novel herbal products for the health business. According to the reports gathered, only a small number of research demonstrated that leaf extract at high concentrations was hazardous to certain organs. The collective literature reviewed in this review provides insights into the use of papaya leaves as a cure for epidemic diseases, highlighting the phytochemical composition and pharmacological attributes of papaya leaves, as well as the results of various preclinical and clinical studies that have been conducted so far on the subject. The review clearly demonstrates the successful medical evidence for the use of papaya leaf extracts in the healthcare system as a supplemental herbal medication in a variety of clinical settings.
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21
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Luzala MM, Muanga CK, Kyana J, Safari JB, Zola EN, Mbusa GV, Nuapia YB, Liesse JMI, Nkanga CI, Krause RWM, Balčiūnaitienė A, Memvanga PB. A Critical Review of the Antimicrobial and Antibiofilm Activities of Green-Synthesized Plant-Based Metallic Nanoparticles. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:1841. [PMID: 35683697 PMCID: PMC9182092 DOI: 10.3390/nano12111841] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 04/03/2022] [Accepted: 04/05/2022] [Indexed: 02/01/2023]
Abstract
Metallic nanoparticles (MNPs) produced by green synthesis using plant extracts have attracted huge interest in the scientific community due to their excellent antibacterial, antifungal and antibiofilm activities. To evaluate these pharmacological properties, several methods or protocols have been successfully developed and implemented. Although these protocols were mostly inspired by the guidelines from national and international regulatory bodies, they suffer from a glaring absence of standardization of the experimental conditions. This situation leads to a lack of reproducibility and comparability of data from different study settings. To minimize these problems, guidelines for the antimicrobial and antibiofilm evaluation of MNPs should be developed by specialists in the field. Being aware of the immensity of the workload and the efforts required to achieve this, we set out to undertake a meticulous literature review of different experimental protocols and laboratory conditions used for the antimicrobial and antibiofilm evaluation of MNPs that could be used as a basis for future guidelines. This review also brings together all the discrepancies resulting from the different experimental designs and emphasizes their impact on the biological activities as well as their interpretation. Finally, the paper proposes a general overview that requires extensive experimental investigations to set the stage for the future development of effective antimicrobial MNPs using green synthesis.
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Affiliation(s)
- Miryam M. Luzala
- Laboratory of Pharmaceutics and Phytopharmaceutical Drug Development, Faculty of Pharmaceutical Sciences, University of Kinshasa, Kinshasa XI B.P. 212, Democratic Republic of the Congo; (M.M.L.); (C.K.M.); (E.N.Z.); (C.I.N.)
| | - Claude K. Muanga
- Laboratory of Pharmaceutics and Phytopharmaceutical Drug Development, Faculty of Pharmaceutical Sciences, University of Kinshasa, Kinshasa XI B.P. 212, Democratic Republic of the Congo; (M.M.L.); (C.K.M.); (E.N.Z.); (C.I.N.)
| | - Joseph Kyana
- Department of Pharmacy, Faculty of Medecine and Pharmacy, University of Kisangani, Kisangani XI B.P. 2012, Democratic Republic of the Congo;
| | - Justin B. Safari
- Department of Pharmacy, Faculty of Pharmaceutical Sciences and Public Health, Official University of Bukavu, Bukavu B.P. 570, Democratic Republic of the Congo;
- Department of Chemistry, Faculty of Science, Rhodes University, P.O. Box 94, Makhana 6140, South Africa
| | - Eunice N. Zola
- Laboratory of Pharmaceutics and Phytopharmaceutical Drug Development, Faculty of Pharmaceutical Sciences, University of Kinshasa, Kinshasa XI B.P. 212, Democratic Republic of the Congo; (M.M.L.); (C.K.M.); (E.N.Z.); (C.I.N.)
| | - Grégoire V. Mbusa
- Centre Universitaire de Référence de Surveillance de la Résistance aux Antimicrobiens (CURS-RAM), Faculty of Pharmaceutical Sciences, University of Kinshasa, Kinshasa XI B.P. 212, Democratic Republic of the Congo; (G.V.M.); (J.-M.I.L.)
- Laboratory of Experimental and Pharmaceutical Microbiology, Faculty of Pharmaceutical Sciences, University of Kinshasa, Kinshasa XI B.P. 212, Democratic Republic of the Congo
| | - Yannick B. Nuapia
- Laboratory of Toxicology, Faculty of Pharmaceutical Sciences, University of Kinshasa, Kinshasa XI B.P. 212, Democratic Republic of the Congo;
| | - Jean-Marie I. Liesse
- Centre Universitaire de Référence de Surveillance de la Résistance aux Antimicrobiens (CURS-RAM), Faculty of Pharmaceutical Sciences, University of Kinshasa, Kinshasa XI B.P. 212, Democratic Republic of the Congo; (G.V.M.); (J.-M.I.L.)
- Laboratory of Experimental and Pharmaceutical Microbiology, Faculty of Pharmaceutical Sciences, University of Kinshasa, Kinshasa XI B.P. 212, Democratic Republic of the Congo
| | - Christian I. Nkanga
- Laboratory of Pharmaceutics and Phytopharmaceutical Drug Development, Faculty of Pharmaceutical Sciences, University of Kinshasa, Kinshasa XI B.P. 212, Democratic Republic of the Congo; (M.M.L.); (C.K.M.); (E.N.Z.); (C.I.N.)
| | - Rui W. M. Krause
- Department of Chemistry, Faculty of Science, Rhodes University, P.O. Box 94, Makhana 6140, South Africa
- Center for Chemico- and Bio-Medicinal Research (CCBR), Faculty of Science, Rhodes University, P.O. Box 94, Makhana 6140, South Africa
| | - Aistė Balčiūnaitienė
- Lithuanian Research Centre for Agriculture and Forestry, Institute of Horticulture, 54333 Babtai, Lithuania;
| | - Patrick B. Memvanga
- Laboratory of Pharmaceutics and Phytopharmaceutical Drug Development, Faculty of Pharmaceutical Sciences, University of Kinshasa, Kinshasa XI B.P. 212, Democratic Republic of the Congo; (M.M.L.); (C.K.M.); (E.N.Z.); (C.I.N.)
- Department of Pharmacy, Faculty of Medecine and Pharmacy, University of Kisangani, Kisangani XI B.P. 2012, Democratic Republic of the Congo;
- Department of Pharmacy, Faculty of Pharmaceutical Sciences and Public Health, Official University of Bukavu, Bukavu B.P. 570, Democratic Republic of the Congo;
- Centre de Recherche et d’Innovation Technologique en Environnement et en Sciences de la Santé (CRITESS), University of Kinshasa, Kinshasa XI B.P. 212, Democratic Republic of the Congo
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22
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Ajwa-Dates (Phoenix dactylifera)-Mediated Synthesis of Silver Nanoparticles and Their Anti-Bacterial, Anti-Biofilm, and Cytotoxic Potential. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12094537] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Green nanotechnology is the evolution of cost-effective and environmentally friendly processes for the production of metal-based nanoparticles due to medicinal importance and economic value. The aim of the present study was to biosynthesize and characterize silver nanoparticles (AgNPs) using the seed extract of Ajwa dates (Aw). The anti-bacteriostatic activity of biosynthesized Aw–AgNPs against Gram-positive and Gram-negative bacterial strains was evaluated. The anti-biofilm activity was examined by the tissue culture plate method. Lastly, the anti-cancer potential of Aw–AgNPs was investigated against the human breast cancer cell line HCC712. UV–visible absorption spectra exhibited the plasmon resonance peak at 430 nm, with the solution undergoing rapid color changes that verified the existence of biosynthesized silver nanoparticles in the solution. TEM and SEM images illustrated that the Aw–AgNPs were spherical and between 15 and 80 nm in diameter. The reduction and stabilization of Aw–AgNPs was due to the functional groups present in the biomolecules of the Ajwa seeds, as identified by FTIR. The Aw–AgNPs exhibited significant anti-bacterial activity against all the tested bacterial strains. Moreover, the Aw–AgNPs efficiently hampered the biofilm formation of the bacterial strains and exhibited cytotoxicity at various concentrations. Overall, these findings suggest that biosynthesized Aw–AgNPs may be used as a potential therapeutic formulation against bacterial infections and breast cancer.
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Investigation of the Antibacterial and Antibiofilm Activity of Selenium Nanoparticles against Vibrio cholerae as a Potent Therapeutics. CANADIAN JOURNAL OF INFECTIOUS DISEASES AND MEDICAL MICROBIOLOGY 2022; 2022:3432235. [PMID: 35368520 PMCID: PMC8967569 DOI: 10.1155/2022/3432235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 02/01/2022] [Accepted: 02/09/2022] [Indexed: 11/17/2022]
Abstract
Vibrio cholerae is a major cause of severe diarrhea, which is ecologically flexible, and remains as a major cause of death, especially in developing countries. Consecutive emergence of antibiotic-resistant strains is considered to be as one of the major concerns of the World Health Organization (WHO). Nanoparticles as a new nonantibiotic therapeutic strategy have been widely used in recent years to treat bacterial infections. The present study aimed to investigate the antibacterial and antibiofilm effect of selenium nanoparticles (SeNPs) in vitro against V. cholerae O1 ATCC 14035 strain. SeNPs were prepared and characterized using ultraviolet-visible (UV-Vis) spectroscopy, DLS (dynamic light scattering), zeta potential measurement, and Fourier transform infrared (FTIR) analysis. The concentration of SeNPs was calculated by ICP (inductively coupled plasma) method. Also, 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-2H-tetrazolium bromide (MTT) assay was employed to assess the cytotoxic effect of SeNPs on Caco-2 cells. Antibacterial and antibiofilm activity of SeNPs was determined by broth microdilution and crystal violet assays, respectively. The average particle size of SeNPs was 71.1 nm with zeta potential −32.2 mV. The SEM images supported the uniform spherical morphology of the prepared nanoparticles. The antibiofilm effect of SeNPs was evident at concentrations of 50–200 μg/mL. This study results provided evidence that SeNPs are safe as an antibacterial and antibiofilm agent against V. cholerae O1 ATCC 14035 strain.
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Applications of Antimicrobial Photodynamic Therapy against Bacterial Biofilms. Int J Mol Sci 2022; 23:ijms23063209. [PMID: 35328629 PMCID: PMC8953781 DOI: 10.3390/ijms23063209] [Citation(s) in RCA: 49] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Revised: 03/07/2022] [Accepted: 03/10/2022] [Indexed: 12/14/2022] Open
Abstract
Antimicrobial photodynamic therapy and allied photodynamic antimicrobial chemotherapy have shown remarkable activity against bacterial pathogens in both planktonic and biofilm forms. There has been little or no resistance development against antimicrobial photodynamic therapy. Furthermore, recent developments in therapies that involve antimicrobial photodynamic therapy in combination with photothermal hyperthermia therapy, magnetic hyperthermia therapy, antibiotic chemotherapy and cold atmospheric pressure plasma therapy have shown additive and synergistic enhancement of its efficacy. This paper reviews applications of antimicrobial photodynamic therapy and non-invasive combination therapies often used with it, including sonodynamic therapy and nanozyme enhanced photodynamic therapy. The antimicrobial and antibiofilm mechanisms are discussed. This review proposes that these technologies have a great potential to overcome the bacterial resistance associated with bacterial biofilm formation.
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Michailidu J, Maťátková O, Kolouchová I, Masák J, Čejková A. Silver Nanoparticle Production Mediated by Vitis vinifera Cane Extract: Characterization and Antibacterial Activity Evaluation. PLANTS (BASEL, SWITZERLAND) 2022; 11:443. [PMID: 35161424 PMCID: PMC8840298 DOI: 10.3390/plants11030443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 01/31/2022] [Accepted: 02/02/2022] [Indexed: 11/29/2022]
Abstract
The ever-growing range of possible applications of nanoparticles requires their mass production. However, there are problems resulting from the prevalent methods of nanoparticle production; physico-chemical routes of nanoparticle synthesis are not very environmentally friendly nor cost-effective. Due to this, the scientific community started exploring new methods of nanoparticle assembly with the aid of biological agents. In this study, ethanolic Vitis vinifera cane extract combined with silver nitrate was used to produce silver nanoparticles. These were subsequently characterized using UV-visible (UV-Vis) spectrometry, transmission electron microscopy, and dynamic light-scattering analysis. The antimicrobial activity of produced nanoparticles was tested against the planktonic cells of five strains of Gram-negative bacterium Pseudomonas aeruginosa (PAO1, ATCC 10145, ATCC 15442, DBM 3081, and DBM 3777). After that, bactericidal activity was assessed using solid medium cultivation. In the end, nanoparticles' inhibitory effect on adhering cells was analyzed by measuring changes in metabolic activity (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay-MTT). Our results confirmed that ethanolic Vitis vinifera cane extract is capable of mediating silver nanoparticle production; synthesis was conducted using 10% of extract and 1 mM of silver nitrate. The silver nanoparticles' Z-average was 68.2 d nm, and their zeta potential was -30.4 mV. These silver nanoparticles effectively inhibited planktonic cells of all P. aeruginosa strains in concentrations less than 5% v/v and inhibited biofilm formation in concentrations less than 6% v/v. Moreover, minimum bactericidal concentration was observed to be in the range of 10-16% v/v. According to the results in this study, the use of wine agriculture waste is an ecological and economical method for the production of silver nanoparticles exhibiting significant antimicrobial properties.
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Affiliation(s)
- Jana Michailidu
- Department of Biotechnology, Faculty of Food and Biochemical Technology, UCT Prague, Technická 5 Dejvice, Praha 6, 166 28 Prague, Czech Republic; (O.M.); (I.K.); (J.M.); (A.Č.)
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Li R, Zhu L, Liu D, Wang W, Zhang C, Jiao S, Wei J, Ren L, Zhang Y, Gou X, Yuan X, Du Y, Wang ZA. High molecular weight chitosan oligosaccharide exhibited antifungal activity by misleading cell wall organization via targeting PHR transglucosidases. Carbohydr Polym 2022; 285:119253. [PMID: 35287867 DOI: 10.1016/j.carbpol.2022.119253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 01/12/2022] [Accepted: 02/11/2022] [Indexed: 11/02/2022]
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Antibacterial and anti-biofilm activity of silver nanoparticles on multi-drug resistance pseudomonas aeruginosa isolated from dental-implant. J Oral Biol Craniofac Res 2022; 12:199-203. [PMID: 35028283 DOI: 10.1016/j.jobcr.2021.12.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 09/11/2021] [Accepted: 12/20/2021] [Indexed: 11/24/2022] Open
Abstract
Aim The aim of this study was to isolate multi-drug-resistant p. aeruginosa from dental implant, and control the growth and biofilm of isolated p. aeruginosa by silver nanoparticles. Materials and methods Thirty specimens from patients with Peri-implantitis were taken for isolation of p. aeruginosa. Bacterial samples were obtained from the infected peri-implant pocket with sterile paper points (size 30-45 mm). Samples were cultured for isolation of Multi-drug resistance P. aeruginosa. Phenotypical identification was done by the VITEK 2 system. DNA was extracted from the isolates and 16S rDNA-based PCR assay was used to confirm the identification. Susceptibility of isolated p. aeruginosa to 16 antibiotics was evaluated using the VITEK 2 system. The growth inhibition of isolated bacteria by AgNPs was tested by disk-diffusion method. The microtiter plate assay was used to estimate the capacity of P. aeruginosa to from biofilms. Antibiofilm activity of AgNPs was determined by microtiter plate assay. Results Three P. aeruginosa were successfully isolated from 30 clinical specimens. P. aeruginoas isolates were resistance to most of used antibiotics. Silver nanoparticles exerted an inhibitory effect on all isolated bacteria. All tested concentration of AgNPS exhibited a greatest anti-biofilm activity against multi-drug resistance (MDR) p. aeruginosa. Conclusion Current findings highlight the role of AgNPS in growth inhibition of P. aeruginosa and reveal a potential application of AgNPS in eradication of p. aeruginosa biofilms.
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Bacitracin and isothiocyanate functionalized silver nanoparticles for synergistic and broad spectrum antibacterial and antibiofilm activity with selective toxicity to bacteria over mammalian cells. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2022; 133:112649. [PMID: 35034824 DOI: 10.1016/j.msec.2022.112649] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 12/17/2021] [Accepted: 01/04/2022] [Indexed: 12/31/2022]
Abstract
Silver nanoparticles functionalized with bacitracin (BA), a cyclic peptide and isothiocyanate (ITC), a natural plant product, was fabricated. The particle size of AgNP-BA&ITC was optimized using full factorial design. The optimized particles were of 10-15 nm in size as seen under TEM and showed chemical signature of both bacitracin as well as isothiocynate in FTIR spectroscopy. XRD analysis confirmed the crystalline nature of these particles. Inductively Coupled Plasma-Mass Spectroscopy (ICP-MS) showed 21 mg/g silver content in AgNP-BA &ITC. These nanoparticles exhibited MIC in the range of 12.5-25 μg/mL and > 3 log10 reduction in cell viability for both Gram positive and Gram-negative bacteria. They clearly demonstrated biofilm inhibition (BIC90 = 150-400 μg/mL) as well as were capable of eradicating both young and mature preformed biofilms as observed by live/dead imaging and crystal violet assay. Further cytotoxicity assay suggests high selectivity (IC50/MIC90 value = 15.2-30.4) of these particles. The results in the present investigation provide role of these novel nanoparticles having substantially low silver content with reduced toxicity and good antibacterial and antibiofilm activity for external wound healing applications.
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Behera A, Pradhan SP, Ahmed FK, Abd-Elsalam KA. Enzymatic synthesis of silver nanoparticles: Mechanisms and applications. GREEN SYNTHESIS OF SILVER NANOMATERIALS 2022:699-756. [DOI: 10.1016/b978-0-12-824508-8.00030-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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Korzekwa K, Kędziora A, Stańczykiewicz B, Bugla-Płoskońska G, Wojnicz D. Benefits of Usage of Immobilized Silver Nanoparticles as Pseudomonas aeruginosa Antibiofilm Factors. Int J Mol Sci 2021; 23:284. [PMID: 35008720 PMCID: PMC8745484 DOI: 10.3390/ijms23010284] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 12/17/2021] [Accepted: 12/24/2021] [Indexed: 12/12/2022] Open
Abstract
The aim of this study was to assess the beneficial inhibitory effect of silver nanoparticles immobilized on SiO2 or TiO2 on biofilm formation by Pseudomonas aeruginosa-one of the most dangerous pathogens isolated from urine and bronchoalveolar lavage fluid of patients hospitalized in intensive care units. Pure and silver doped nanoparticles of SiO2 and TiO2 were prepared using a novel modified sol-gel method. Ten clinical strains of P. aeruginosa and the reference PAO1 strain were used. The minimal inhibitory concentration (MIC) was determined by the broth microdilution method. The minimal biofilm inhibitory concentration (MBIC) and biofilm formation were assessed by colorimetric assay. Bacterial enumeration was used to assess the viability of bacteria in the biofilm. Silver nanoparticles immobilized on the SiO2 and TiO2 indicated high antibacterial efficacy against P. aeruginosa planktonic and biofilm cultures. TiO2/Ag0 showed a better bactericidal effect than SiO2/Ag0. Our results indicate that the inorganic compounds (SiO2, TiO2) after nanotechnological modification may be successfully used as antibacterial agents against multidrug-resistant P. aeruginosa strains.
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Affiliation(s)
- Kamila Korzekwa
- Department of Microbiology, Faculty of Biological Sciences, University of Wroclaw, 50-137 Wroclaw, Poland; (A.K.); (G.B.-P.)
| | - Anna Kędziora
- Department of Microbiology, Faculty of Biological Sciences, University of Wroclaw, 50-137 Wroclaw, Poland; (A.K.); (G.B.-P.)
| | | | - Gabriela Bugla-Płoskońska
- Department of Microbiology, Faculty of Biological Sciences, University of Wroclaw, 50-137 Wroclaw, Poland; (A.K.); (G.B.-P.)
| | - Dorota Wojnicz
- Department of Biology and Medical Parasitology, Wroclaw Medical University, 50-345 Wroclaw, Poland
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Current strategies in inhibiting biofilm formation for combating urinary tract infections: Special focus on peptides, nano-particles and phytochemicals. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2021. [DOI: 10.1016/j.bcab.2021.102209] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Mann R, Holmes A, McNeilly O, Cavaliere R, Sotiriou GA, Rice SA, Gunawan C. Evolution of biofilm-forming pathogenic bacteria in the presence of nanoparticles and antibiotic: adaptation phenomena and cross-resistance. J Nanobiotechnology 2021; 19:291. [PMID: 34579731 PMCID: PMC8474960 DOI: 10.1186/s12951-021-01027-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Accepted: 09/06/2021] [Indexed: 11/26/2022] Open
Abstract
Background Treatment of bacterial biofilms are difficult and in many cases, expensive. Bacterial biofilms are naturally more resilient to antimicrobial agents than their free-living planktonic counterparts, rendering the community growth harder to control. The present work described the risks of long-term use of an important alternative antimicrobial, silver nanoparticles (NAg), for the first time, on the dominant mode of bacterial growth. Results NAg could inhibit the formation as well as eradicating an already grown biofilm of Pseudomonas aeruginosa, a pathogen notorious for its resilience to antibiotics. The biofilm-forming bacterium however, evolved a reduced sensitivity to the nanoparticle. Evidence suggests that survival is linked to the development of persister cells within the population. A similar adaptation was also seen upon prolonged exposures to ionic silver (Ag+). The persister population resumed normal growth after subsequent passage in the absence of silver, highlighting the potential risks of recurrent infections with long-term NAg (and Ag+) treatments of biofilm growth. The present study further observed a potential silver/antibiotic cross-resistance, whereby NAg (as well as Ag+) could not eradicate an already growing gentamicin-resistant P. aeruginosa biofilm. The phenomena is thought to result from the hindered biofilm penetration of the silver species. In contrast, both silver formulations inhibited biofilm formation of the resistant strain, presenting a promising avenue for the control of biofilm-forming antibiotic-resistant bacteria. Conclusion The findings signify the importance to study the nanoparticle adaptation phenomena in the biofilm mode of bacterial growth, which are apparently unique to those already reported with the planktonic growth counterparts. This work sets the foundation for future studies in other globally significant bacterial pathogens when present as biofilms. Scientifically based strategies for management of pathogenic growth is necessary, particularly in this era of increasing antibiotic resistance. Graphic abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s12951-021-01027-8.
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Affiliation(s)
- Riti Mann
- The iThree Institute, University of Technology Sydney, Ultimo, NSW, 2007, Australia
| | - Amy Holmes
- School of Pharmacy and Medical Sciences, The University of South Australia, Adelaide, Australia
| | - Oliver McNeilly
- The iThree Institute, University of Technology Sydney, Ultimo, NSW, 2007, Australia
| | - Rosalia Cavaliere
- The iThree Institute, University of Technology Sydney, Ultimo, NSW, 2007, Australia
| | - Georgios A Sotiriou
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Scott A Rice
- The iThree Institute, University of Technology Sydney, Ultimo, NSW, 2007, Australia.,Singapore Centre for Environmental Life Sciences Engineering, Singapore, Singapore.,School of Biological Sciences, Nanyang Technological University, Singapore, Singapore
| | - Cindy Gunawan
- The iThree Institute, University of Technology Sydney, Ultimo, NSW, 2007, Australia. .,School of Chemical Engineering, University of New South Wales, Sydney, NSW, 2052, Australia.
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Wahab S, Khan T, Adil M, Khan A. Mechanistic aspects of plant-based silver nanoparticles against multi-drug resistant bacteria. Heliyon 2021; 7:e07448. [PMID: 34286126 PMCID: PMC8273360 DOI: 10.1016/j.heliyon.2021.e07448] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 06/05/2021] [Accepted: 06/28/2021] [Indexed: 12/23/2022] Open
Abstract
Resistance among pathogenic bacteria to the existing antibiotics is one of the most alarming problems of the modern world. Alongwith reducing the use of antibiotics, and antibiotic stewardship, an alternative to antibiotics is much needed in the current scenario to combact infectious diseases. One alternative is to produce nanomaterials, especially, silver nanoparticles (AgNPs) against antibiotic-resistant bacteria. AgNPs are the most vital and fascinating nanoparticles because of their unique structural and functional properties and application against pathogenic bacteria. However, the synthesis of AgNPs remains a problem because of the chemicals and energy requirements and the byproducts of the reactions. Concerns have been raised about using chemically and physically synthesized nanoparticles because of their potential risks to the human body, animals, and environment. Green synthesis of these nanoparticles is a better alternative to physical and chemical approaches. Plant-based synthesis in turn is a method which can provide AgNPs that are cost-effective and eco-friendly as well as biocompatible. The specific features of size, morphology and shape of plant-based AgNPs give them the potency to fight multi-drug resistant bacteria. A detailed look into mechanistic aspects of the action of AgNPs against resistant bacteria with a focus on characteristic properties of AgNPs is required. This review discusses in detail these aspects and the potential of plant-based AgNPs as a solution to antibiotic resistance.
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Affiliation(s)
- Shahid Wahab
- Department of Biotechnology, University of Malakand, Chakdara Dir Lower, Pakistan
| | - Tariq Khan
- Department of Biotechnology, University of Malakand, Chakdara Dir Lower, Pakistan
| | - Muhammad Adil
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Centre for Nanoscience and Technology (NCNST), China
| | - Ajmal Khan
- Department of Biology, University of North Carolina at Greensboro, NC, United States
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Targhi AA, Moammeri A, Jamshidifar E, Abbaspour K, Sadeghi S, Lamakani L, Akbarzadeh I. Synergistic effect of curcumin-Cu and curcumin-Ag nanoparticle loaded niosome: Enhanced antibacterial and anti-biofilm activities. Bioorg Chem 2021; 115:105116. [PMID: 34333420 DOI: 10.1016/j.bioorg.2021.105116] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 06/16/2021] [Accepted: 06/19/2021] [Indexed: 12/11/2022]
Abstract
In the current study, for the first time, the synergistic activity of curcumin and silver/copper nanoparticles (NPs) was studied against Staphylococcus aureus and Pseudomonas aeruginosa. Moreover, a unique combination of curcumin and silver/copper NPs in free and encapsulated forms was prepared and delivered through a niosomal system. For this purpose, different niosomal formulations of curcumin and metal NPs were prepared by thin film hydration method. Then, the dual drug-loaded niosomes were dispersed in chitosan hydrogel in order to widen its applications. The effect of the molar ratios of lipid to drug and surfactant to cholesterol was investigated to find the optimized noisomal nanoparticles in terms of size, polydispersity index (PDI), and entrapment efficiency (EE). The size and PDI values were measured by dynamic light scattering (DLS). Morphology and in vitro drug release kinetics of niosomes were examined by scanning and transmission electron microscopy (SEM, TEM) and dialysis method, respectively. The drug-loaded niosomes and their hydrogel counterpart were screened for investigating their antibacterial activity against S. aureus and P. aeruginosa by disk diffusion, minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) assays. Furthermore, anti-biofilm assay and expression of biofilm-associated genes by Real-time PCR were performed to evaluate the anti-biofilm effect of NPs. In this study, the drug-loaded niosomal formulations showed good entrapment efficiencies (EE) with a sustained release profile over 72 h. Moreover, compared to free drugs, the optimized niosomal formulations increased antibacterial activity against the bacteria via promotion in the inhibition zone and reduction in MIC and MBC values. Interestingly, gel-based niosomal formulations increased the inhibition zone by about 6 mm and significantly decreased MIC and MBC values compared to niosomal formulations. Also, biofilm eradication of curcumin-metal NPs encapsulated into niosomal hydrogel was highest compared to free and niosomal drugs. Overall, curcumin-Cu or curcumin-Ag nanoparticle loaded niosomes incorporated in hydrogel hold great promise for biomedical applications.
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Affiliation(s)
| | - Ali Moammeri
- School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Elham Jamshidifar
- Department of Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Koorosh Abbaspour
- School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Somayeh Sadeghi
- Department of Molecular Biology, Pasteur Institute of Iran, Tehran, Iran.
| | - Lida Lamakani
- School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Iman Akbarzadeh
- Department of Chemical and Petrochemical Engineering, Sharif University of Technology, Tehran, Iran.
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Zamanpour N, Mohammad Esmaeily A, Mashreghi M, Shahnavaz B, Reza Sharifmoghadam M, Kompany A. Application of a marine luminescent Vibrio sp. B4L for biosynthesis of silver nanoparticles with unique characteristics, biochemical properties, antibacterial and antibiofilm activities. Bioorg Chem 2021; 114:105102. [PMID: 34174634 DOI: 10.1016/j.bioorg.2021.105102] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 02/17/2021] [Accepted: 06/15/2021] [Indexed: 11/19/2022]
Abstract
Biosynthesis of silver nanoparticles (AgNPs) by marine bacteria especially luminescent Vibrio species is least investigated. In this study, AgNPs were first synthesized by the culture supernatant of a luminescent bacterium (Vibrio sp. B4L) and then, the prepared samples were characterized employing several techniques. The antibacterial activity of the AgNPs was investigated against Escherichia coli and Staphylococcus aureus using disk diffusion agar and broth microdilution methods. The growth curve, Reactive Oxygen Species (ROS) formation, and Lactate Dehydrogenase (LDH) activity of the samples were measured along with Field Emission Scanning Electron Microscopy (FESEM) observation and inhibition of biofilm formation. Dynamic light scattering (DLS) analysis showed that the average particle size of the synthesized AgNPs was in the range of about 32.67-107.18 nm and the polydispersity index (PDI) of 0.1120 indicated the formation of monodispersed particles. The average zeta potential of AgNPs obtained -36.15 mV, showing the high stability of biosynthetic nanoparticles. Antibacterial studies indicated that not only the AgNPs had antibacterial activity but also increased the antibacterial properties of tetracycline when used in combination. ROS production was enhanced in a dose-dependent manner. A high difference in LDH activities was found between AgNPs treated cells and the control group. FESEM images revealed membrane disruption and lysis in AgNPs treated cells. The formation of E. coli biofilm was 100% inhibited at 62.5 µg/ml showing that our bacteriogenic AgNPs can be a potential alternative remedies for controlling antibiotic-resistant pathogens.
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Affiliation(s)
- Noushin Zamanpour
- Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad 9177948974, Iran
| | - Ali Mohammad Esmaeily
- Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad 9177948974, Iran
| | - Mansour Mashreghi
- Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad 9177948974, Iran; Industrial Biotechnology Research Group, Institute of Biotechnology, Ferdowsi University of Mashhad, Mashhad 9177948974, Iran; Nano Research Center, Ferdowsi University of Mashhad, Mashhad 9177948974, Iran.
| | - Bahar Shahnavaz
- Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad 9177948974, Iran.
| | | | - Ahmad Kompany
- Nano Research Center, Ferdowsi University of Mashhad, Mashhad 9177948974, Iran; Department of Physics, Faculty of Science, Ferdowsi University of Mashhad, Mashhad 9177948974, Iran.
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Srichaiyapol O, Thammawithan S, Siritongsuk P, Nasompag S, Daduang S, Klaynongsruang S, Kulchat S, Patramanon R. Tannic Acid-Stabilized Silver Nanoparticles Used in Biomedical Application as an Effective Antimelioidosis and Prolonged Efflux Pump Inhibitor against Melioidosis Causative Pathogen. Molecules 2021; 26:1004. [PMID: 33672903 PMCID: PMC7918740 DOI: 10.3390/molecules26041004] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 02/03/2021] [Accepted: 02/11/2021] [Indexed: 11/17/2022] Open
Abstract
Burkholderia pseudomallei is the causative pathogen of melioidosis and this bacterium is resistant to several antibiotics. Silver nanoparticles (AgNPs) are an interesting agent to develop to solve this bacterial resistance. Here, we characterize and assess the antimelioidosis activity of AgNPs against these pathogenic bacteria. AgNPs were characterized and displayed a maximum absorption band at 420 nm with a spherical shape, being well-monodispersed and having high stability in solution. The average size of AgNPs is 7.99 ± 1.46 nm. The antibacterial efficacy of AgNPs was evaluated by broth microdilution. The bactericidal effect of AgNPs was further assessed by time-kill kinetics assay. Moreover, the effect of AgNPs on the inhibition of the established biofilm was investigated by the crystal violet method. In parallel, a study of the resistance induction development of B. pseudomallei towards AgNPs with efflux pump inhibiting effect was performed. We first found that AgNPs had strong antibacterial activity against both susceptible and ceftazidime-resistant (CAZ-resistant) strains, as well as being efficiently active against B. pseudomallei CAZ-resistant strains with a fast-killing mode via a bactericidal effect within 30 min. These AgNPs did not only kill planktonic bacteria in broth conditions, but also in established biofilm. Our findings first documented that the resistance development was not induced in B. pseudomallei toward AgNPs in the 30th passage. We found that AgNPs still showed an effective efflux pump inhibiting effect against these bacteria after prolonged exposure to AgNPs at sublethal concentrations. Thus, AgNPs have valuable properties for being a potent antimicrobial agent to solve the antibiotic resistance problem in pathogens.
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Affiliation(s)
- Oranee Srichaiyapol
- Department of Biochemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand; (O.S.); (S.T.); (P.S.); (S.K.)
| | - Saengrawee Thammawithan
- Department of Biochemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand; (O.S.); (S.T.); (P.S.); (S.K.)
| | - Pawinee Siritongsuk
- Department of Biochemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand; (O.S.); (S.T.); (P.S.); (S.K.)
| | - Sawinee Nasompag
- Research Instrument Center, Khon Kaen University, Khon Kaen 40002, Thailand;
- Interdisciplinary Graduate Program in Genetic Engineering, Graduate School, Kasetsart University, Bangkok 10900, Thailand
| | - Sakda Daduang
- Protein and Proteomics Research Center for Commercial and Industrial Purposes (ProCCI), Khon Kaen University, Khon Kaen 40002, Thailand;
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Sompong Klaynongsruang
- Department of Biochemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand; (O.S.); (S.T.); (P.S.); (S.K.)
- Protein and Proteomics Research Center for Commercial and Industrial Purposes (ProCCI), Khon Kaen University, Khon Kaen 40002, Thailand;
| | - Sirinan Kulchat
- Department of Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand;
| | - Rina Patramanon
- Department of Biochemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand; (O.S.); (S.T.); (P.S.); (S.K.)
- Protein and Proteomics Research Center for Commercial and Industrial Purposes (ProCCI), Khon Kaen University, Khon Kaen 40002, Thailand;
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de Lacerda Coriolano D, de Souza JB, Bueno EV, Medeiros SMDFRDS, Cavalcanti IDL, Cavalcanti IMF. Antibacterial and antibiofilm potential of silver nanoparticles against antibiotic-sensitive and multidrug-resistant Pseudomonas aeruginosa strains. Braz J Microbiol 2020; 52:267-278. [PMID: 33231865 DOI: 10.1007/s42770-020-00406-x] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 11/12/2020] [Indexed: 12/16/2022] Open
Abstract
Due to the severity of infections caused by P. aeruginosa and the limitations in treatment, it is necessary to find new therapeutic alternatives. Thus, the use of silver nanoparticles (AgNPs) is a viable alternative because of their potential actions in the combat of microorganisms, showing efficacy against Gram-positive and Gram-negative bacteria, including multidrug-resistant microorganisms (MDR). In this sense, the aim of this work was to conduct a literature review related to the antibacterial and antibiofilm activity of AgNPs against antibiotic-sensitive and multidrug-resistant Pseudomonas aeruginosa strains. The AgNPs are promising for future applications, which may match the clinical need for effective antibiotic therapy. The size of AgNPs is a crucial element to determine the therapeutic activity of nanoparticles, since smaller particles present a larger surface area of contact with the microorganism, affecting their vital functioning. AgNPs adhere to the cytoplasmic membrane and cell wall of microorganisms, causing disruption, penetrating the cell, interacting with cellular structures and biomolecules, and inducing the generation of reactive oxygen species and free radicals. Studies describe the antimicrobial activity of AgNPs at minimum inhibitory concentration (MIC) between 1 and 200 μg/mL against susceptible and MDR P. aeruginosa strains. These studies have also shown antibiofilm activity through disruption of biofilm structure, and oxidative stress, inhibiting biofilm growth at concentrations between 1 and 600 μg/mL of AgNPs. This study evidences the advance of AgNPs as an antibacterial and antibiofilm agent against Pseudomonas aeruginosa strains, demonstrating to be an extremely promising approach to the development of new antimicrobial systems.
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Affiliation(s)
- Davi de Lacerda Coriolano
- Laboratory of Immunopathology Keizo Asami (LIKA), Federal University of Pernambuco (UFPE), Av. Prof. Moraes Rego, 1235, Cidade Universitária, Recife, PE, 50670-901, Brazil
| | - Jaqueline Barbosa de Souza
- Laboratory of Immunopathology Keizo Asami (LIKA), Federal University of Pernambuco (UFPE), Av. Prof. Moraes Rego, 1235, Cidade Universitária, Recife, PE, 50670-901, Brazil
| | | | | | - Iago Dillion Lima Cavalcanti
- Laboratory of Immunopathology Keizo Asami (LIKA), Federal University of Pernambuco (UFPE), Av. Prof. Moraes Rego, 1235, Cidade Universitária, Recife, PE, 50670-901, Brazil.
| | - Isabella Macário Ferro Cavalcanti
- Laboratory of Immunopathology Keizo Asami (LIKA), Federal University of Pernambuco (UFPE), Av. Prof. Moraes Rego, 1235, Cidade Universitária, Recife, PE, 50670-901, Brazil.
- Laboratory of Microbiology and Immunology, Academic Center of Vitória (CAV), Federal University of Pernambuco (UFPE), Vitória de Santo Antão, PE, Brazil.
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Almatroudi A. Silver nanoparticles: synthesis, characterisation and biomedical applications. Open Life Sci 2020; 15:819-839. [PMID: 33817269 PMCID: PMC7747521 DOI: 10.1515/biol-2020-0094] [Citation(s) in RCA: 70] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 08/02/2020] [Accepted: 08/08/2020] [Indexed: 12/16/2022] Open
Abstract
Nanotechnology is a rapidly growing field due to its unique functionality and a wide range of applications. Nanomedicine explores the possibilities of applying the knowledge and tools of nanotechnology for the prevention, treatment, diagnosis and control of disease. In this regard, silver nanoparticles with diameters ranging from 1 to 100 nm are considered most important due to their unique properties, ability to form diverse nanostructures, their extraordinary range of bactericidal and anticancer properties, wound healing and other therapeutic abilities and their cost-effectiveness in production. The current paper reviews various types of physical, chemical and biological methods used in the production of silver nanoparticles. It also describes approaches employing silver nanoparticles as antimicrobial and antibiofilm agents, as antitumour agents, in dentistry and dental implants, as promoters of bone healing, in cardiovascular implants and as promoters of wound healing. The paper also explores the mechanism of action, synthesis methods and morphological characterisation of silver nanoparticles to examine their role in medical treatments and disease management.
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Affiliation(s)
- Ahmad Almatroudi
- Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, Buraydah, 51452, Saudi Arabia
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39
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Fiore M, Sambri A, Zucchini R, Giannini C, Donati DM, De Paolis M. Silver-coated megaprosthesis in prevention and treatment of peri-prosthetic infections: a systematic review and meta-analysis about efficacy and toxicity in primary and revision surgery. EUROPEAN JOURNAL OF ORTHOPAEDIC SURGERY AND TRAUMATOLOGY 2020; 31:201-220. [PMID: 32889672 DOI: 10.1007/s00590-020-02779-z] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 08/28/2020] [Indexed: 01/02/2023]
Abstract
AIM Prosthetic joint infection (PJI) is a common complication following orthopedic megaprosthetic implantations (EPR), estimated up to 50%. Silver coatings were introduced in order to reduce the incidence of PJI, by using the antibacterial activity of silver. Three different silver coatings are available: MUTARS® (Implantcast), Agluna® (Accentus Medical), PorAg® (Waldemar Link). The aim of this review is to provide an overview on efficacy and safety of silver-coated EPR both in primary and revision surgery, comparing infection rate according to the type of implant. METHODS Through an electronic systematic search, we reviewed the articles concerning silver-coated EPRs. Infection rate, silver-related complications, local and blood concentrations of the silver were evaluated. Meta-analyses were performed to compare results from each study included. RESULTS Nineteen studies were included. The overall infection rate in patients with silver-coated implants was 17.6% (133/755). Overall infection rate in primary silver-coated EPR was been 9.2% (44/445), compared to 11.2% (57/507) of non-silver-coated implants. The overall infection rate after revisions was 13.7% (25/183) in patients with silver-coated EPR and 29.2% (47/161) when uncoated EPR were used, revealing a strength statistically significative utility of silver coatings in preventing infections in this group (p: 0.019). Generally, the use of MUTARS® EPR had produced an almost constant decrease in the incidence of primary PJI but there are few data on the effectiveness in revisions. The results from the use of Agluna® in both primary and revisions implants are inconstant. Conversely, PorAg® had proven to be effective both in PJI prevention but, especially, when used in PJI revision settings. Local argyria was reported in 8 out of 357 patients (2.2%), while no systemic complications were described. Local and blood concentrations of silver were always reported very far to the threshold of toxicity, with the lowest concentration found using PorAg®. CONCLUSIONS Silver-coated EPRs are safe and effective in reduction in PJI and re-infection rate, in particular when used in higher risk patients and after two-stage revisions to fight PJI.
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Affiliation(s)
- Michele Fiore
- IRCCS Istituto Ortopedico Rizzoli, Via G.C. Pupilli 1, 40136, Bologna, Italy.
| | - Andrea Sambri
- Azienda ospedaliera Sant'Orsola Malpighi, Bologna, Italy.,Alma mater studiorum - University of Bologna, Bologna, Italy
| | - Riccardo Zucchini
- IRCCS Istituto Ortopedico Rizzoli, Via G.C. Pupilli 1, 40136, Bologna, Italy
| | - Claudio Giannini
- IRCCS Istituto Ortopedico Rizzoli, Via G.C. Pupilli 1, 40136, Bologna, Italy
| | - Davide Maria Donati
- IRCCS Istituto Ortopedico Rizzoli, Via G.C. Pupilli 1, 40136, Bologna, Italy.,Alma mater studiorum - University of Bologna, Bologna, Italy
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40
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Humayun A, Luo Y, Elumalai A, Mills DK. 3D printed antimicrobial PLA constructs functionalised with zinc- coated halloysite nanotubes-Ag-chitosan oligosaccharide lactate. MATERIALS TECHNOLOGY (NEW YORK, N.Y.) 2020; 37:28-35. [PMID: 35966218 PMCID: PMC9373048 DOI: 10.1080/10667857.2020.1806188] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Accepted: 08/02/2020] [Indexed: 06/15/2023]
Abstract
The control and inhibition of microbial infection are of critical importance for patients undergoing dental or orthopedic surgery. A critical requirement is the prevention of bacterial growth, subsequent bacterial colonization of implant surfaces, and biofilm formation. Among biofilm-forming bacteria, S. aureus and S. epidermidis are the most common bacteria responsible for causing implant-related infections. The ability to produce customized and patient-specific antimicrobial treatments will significantly reduce infections leading to enhanced patient recovery. We propose that 3D-printed antimicrobial biomedical devices for on-demand infection prophylaxis and disease prevention are a rational solution for the prevention of infection. In this study, we modified 3D printed polylactic acid (PLA) constructs using an alkali treatment to increase hydrophilicity and functionalized the surface of the constructs using a suspension of Zinc/HNTs-Ag-Chitosan Oligosaccharide Lactate (ZnHNTs-Ag-COS). The morphologies of printed constructs were analyzed using Scanning Electron Microscopy-Energy Dispersive X-Ray Spectroscopy (SEM-EDS), and chemical analysis by Fourier-transform infrared spectroscopy (FTIR). Assessment of the antimicrobial potential of our constructs was assessed using agar diffusion and biofilm assays. The surface of 3D printed PLA constructs were chemically modified to increase hydrophilicity and suspensions of COS-ZnHNTs-Ag were adsorbed on the construct surface. Surface adsorption of ZnHNTs-Ag-COS on PLA printed constructs was determined to be a function of relative pore size. Morphological surface characterization using SEM-EDS confirmed the presence of the suspension coatings on the constructs, and FTIR analysis confirmed the presence of COS-ZnHNTs-Ag in the coatings. The inhibition of bacterial growth was evaluated using the agar diffusion method. Results obtained confirmed the antimicrobial potential of the PLA constructs (which was a function of the Ag content in the material).
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Affiliation(s)
- Ahmed Humayun
- Center for Biomedical Engineering and Rehabilitation Science, Louisiana Tech University, Ruston, LA, USA
| | - Yangyang Luo
- Center for Biomedical Engineering and Rehabilitation Science, Louisiana Tech University, Ruston, LA, USA
| | - Anusha Elumalai
- Center for Biomedical Engineering and Rehabilitation Science, Louisiana Tech University, Ruston, LA, USA
| | - David K. Mills
- Center for Biomedical Engineering and Rehabilitation Science, Louisiana Tech University, Ruston, LA, USA
- School of Biological Sciences, Louisiana Tech University, Ruston, LA, USA
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41
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Sharma S, Chakraborty N, Jha D, Gautam HK, Roy I. Robust dual modality antibacterial action using silver-Prussian blue nanoscale coordination polymer. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 113:110982. [PMID: 32487399 DOI: 10.1016/j.msec.2020.110982] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Revised: 03/28/2020] [Accepted: 04/17/2020] [Indexed: 12/24/2022]
Abstract
We report the synthesis of novel silver-doped Prussian blue nanoscale coordination polymers (SPB NCPs), for dual modality photothermal ablation and oxidative toxicity in bacterial cells. The comparison of SPB NCPs (having Fe-CN-Ag bonds) with the conventionally used Prussian blue nanoscale coordination polymers (PB NCPs, having Fe-CN-Fe bonds) was investigated in terms of their physical and therapeutic properties. It was observed that both PB and SPB NCPs have similar physical dimensions, crystalline phase and optical properties. Both these NCPs showed robust photothermal effect by heat generation (hyperthermia) upon exposure to red laser light. However, among the two, only SPB NCP showed oxidase-like activity by generating H2O2 in aqueous medium, presumably due to its silver content. In vitro antibacterial studies revealed that the SPB NCPs, but not PB NCPs, show inherent toxicity towards bacteria with an IC50 value close to 2.5 μg/ml. It can be inferred that this toxicity is oxidative in nature, as a result of the oxidase-like behaviour shown by SPB NCPs. Furthermore, light activation resulted in substantial additional antibacterial effect (photothermal toxicity) in bacterial cells treated with SPB NCPs. In comparison, marginal additional photothermal toxicity was observed in PB NCP-treated bacteria. Thus, we conclude that the combination of dual modality oxidative and photothermal toxicities demonstrated by SPB NCPs, but not by control PB NCPs, makes the former promising antibacterial agents at low dosages.
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Affiliation(s)
- Shalini Sharma
- Department of Chemistry, University of Delhi, Delhi, 110007, India
| | | | - Diksha Jha
- Institute of Genomics and Integrative Biology, Sukhdev Vihar, Delhi, 110025, India
| | - Hemant Kumar Gautam
- Institute of Genomics and Integrative Biology, Sukhdev Vihar, Delhi, 110025, India
| | - Indrajit Roy
- Department of Chemistry, University of Delhi, Delhi, 110007, India.
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42
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Bakhtiari-Sardari A, Mashreghi M, Eshghi H, Behnam-Rasouli F, Lashani E, Shahnavaz B. Comparative evaluation of silver nanoparticles biosynthesis by two cold-tolerant Streptomyces strains and their biological activities. Biotechnol Lett 2020; 42:1985-1999. [PMID: 32462288 DOI: 10.1007/s10529-020-02921-1] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Accepted: 05/20/2020] [Indexed: 12/31/2022]
Abstract
The present study reflected on high-priority biological activities of novel silver nanoparticles (AgNPs) synthesized via two cold-tolerant strains; namely, Streptomyces sp.OSIP1 and Streptomyces sp.OSNP14. These AgNPs were synthesized through a green method using culture supernatant of bacteria at 20 °C and characterized by several instrumental techniques. The TEM results revealed that the NPs obtained from OSIP1 were smaller (8 nm, average) than those taken from OSIP14 (15 nm, average). Both AgNPs-OSP1 and AgNPs-OSNP14 also posed the strongest growth inhibitory effect against several pathogenic bacteria alone and especially in combination with antibiotics. Smaller NPs especially at 3.9-31.25 µg/ml concentrations were assumed more effective biofilm inhibitors of Pseudomonas aeruginosa. Cytotoxic activity of both AgNPs (at 25 and 50 µg/mL concentrations) on mouse colorectal carcinoma cells (CT26) were then studied using methylthiazolyldiphenyl-tetrazolium bromide (MTT) assay. The findings demonstrated that smaller AgNPs at a 50 µg/mL concentration had 7% more cytotoxicity effects. In conclusion; although AgNPs produced by diverse strains of cold-adapted Streptomyces had close characteristics and biological activities, they showed some multifarious properties.
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Affiliation(s)
- Ali Bakhtiari-Sardari
- Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Mansour Mashreghi
- Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
- Novel Diagnostic and Therapeutics Research Group, Institute of Biotechnology, Ferdowsi University of Mashhad, 9177948974, Mashhad, Iran
| | - Hossein Eshghi
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Fatemeh Behnam-Rasouli
- Novel Diagnostic and Therapeutics Research Group, Institute of Biotechnology, Ferdowsi University of Mashhad, 9177948974, Mashhad, Iran
| | - Elham Lashani
- Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Bahar Shahnavaz
- Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran.
- Institute of Applied Zoology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran.
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43
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Armijo LM, Wawrzyniec SJ, Kopciuch M, Brandt YI, Rivera AC, Withers NJ, Cook NC, Huber DL, Monson TC, Smyth HDC, Osiński M. Antibacterial activity of iron oxide, iron nitride, and tobramycin conjugated nanoparticles against Pseudomonas aeruginosa biofilms. J Nanobiotechnology 2020; 18:35. [PMID: 32070354 PMCID: PMC7029462 DOI: 10.1186/s12951-020-0588-6] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Accepted: 01/29/2020] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Novel methods are necessary to reduce morbidity and mortality of patients suffering from infections with Pseudomonas aeruginosa. Being the most common infectious species of the Pseudomonas genus, P. aeruginosa is the primary Gram-negative etiology responsible for nosocomial infections. Due to the ubiquity and high adaptability of this species, an effective universal treatment method for P. aeruginosa infection still eludes investigators, despite the extensive research in this area. RESULTS We report bacterial inhibition by iron-oxide (nominally magnetite) nanoparticles (NPs) alone, having a mean hydrodynamic diameter of ~ 16 nm, as well as alginate-capped iron-oxide NPs. Alginate capping increased the average hydrodynamic diameter to ~ 230 nm. We also investigated alginate-capped iron-oxide NP-drug conjugates, with a practically unchanged hydrodynamic diameter of ~ 232 nm. Susceptibility and minimum inhibitory concentration (MIC) of the NPs, NP-tobramycin conjugates, and tobramycin alone were determined in the PAO1 bacterial colonies. Investigations into susceptibility using the disk diffusion method were done after 3 days of biofilm growth and after 60 days of growth. MIC of all compounds of interest was determined after 60-days of growth, to ensure thorough establishment of biofilm colonies. CONCLUSIONS Positive inhibition is reported for uncapped and alginate-capped iron-oxide NPs, and the corresponding MICs are presented. We report zero susceptibility to iron-oxide NPs capped with polyethylene glycol, suggesting that the capping agent plays a major role in enabling bactericidal ability in of the nanocomposite. Our findings suggest that the alginate-coated nanocomposites investigated in this study have the potential to overcome the bacterial biofilm barrier. Magnetic field application increases the action, likely via enhanced diffusion of the iron-oxide NPs and NP-drug conjugates through mucin and alginate barriers, which are characteristic of cystic-fibrosis respiratory infections. We demonstrate that iron-oxide NPs coated with alginate, as well as alginate-coated magnetite-tobramycin conjugates inhibit P. aeruginosa growth and biofilm formation in established colonies. We have also determined that susceptibility to tobramycin decreases for longer culture times. However, susceptibility to the iron-oxide NP compounds did not demonstrate any comparable decrease with increasing culture time. These findings imply that iron-oxide NPs are promising lower-cost alternatives to silver NPs in antibacterial coatings, solutions, and drugs, as well as other applications in which microbial abolition or infestation prevention is sought.
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Affiliation(s)
- Leisha M. Armijo
- Center for High Technology Materials, University of New Mexico, 1313 Goddard Street SE, Albuquerque, NM 87106-4343 USA
| | - Stephen J. Wawrzyniec
- Center for High Technology Materials, University of New Mexico, 1313 Goddard Street SE, Albuquerque, NM 87106-4343 USA
| | - Michael Kopciuch
- Center for High Technology Materials, University of New Mexico, 1313 Goddard Street SE, Albuquerque, NM 87106-4343 USA
| | - Yekaterina I. Brandt
- Center for High Technology Materials, University of New Mexico, 1313 Goddard Street SE, Albuquerque, NM 87106-4343 USA
| | - Antonio C. Rivera
- Center for High Technology Materials, University of New Mexico, 1313 Goddard Street SE, Albuquerque, NM 87106-4343 USA
| | - Nathan J. Withers
- Center for High Technology Materials, University of New Mexico, 1313 Goddard Street SE, Albuquerque, NM 87106-4343 USA
| | - Nathaniel C. Cook
- Center for High Technology Materials, University of New Mexico, 1313 Goddard Street SE, Albuquerque, NM 87106-4343 USA
| | - Dale L. Huber
- Center for Integrated Nanotechnologies, Sandia National Laboratories, 1000 Eubank SE, Albuquerque, NM 87123 USA
| | - Todd C. Monson
- Sandia National Laboratories, Nanomaterials Sciences, P.O. Box 5800, MS 1415, Albuquerque, NM 87185 USA
| | - Hugh D. C. Smyth
- College of Pharmacy, The University of Texas at Austin, 2409 University Avenue, Stop A1900, Austin, TX 78712 USA
| | - Marek Osiński
- Center for High Technology Materials, University of New Mexico, 1313 Goddard Street SE, Albuquerque, NM 87106-4343 USA
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44
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Tyagi N, Kumar A. Understanding effect of interaction of nanoparticles and antibiotics on bacteria survival under aquatic conditions: Knowns and unknowns. ENVIRONMENTAL RESEARCH 2020; 181:108945. [PMID: 31806288 DOI: 10.1016/j.envres.2019.108945] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 10/22/2019] [Accepted: 11/17/2019] [Indexed: 06/10/2023]
Abstract
The review provides a comprehensive overview of the available state-of-the-art of nanoparticles (NPs) and antibiotics (ABs) occurrence and their fate in the natural aquatic settings by addressing different research questions and the challenges faced while addressing those questions. Firstly, understand the interaction of NPs and ABs with themselves in addition to other matrix components (presence of natural organic matter, bacteria, biofilms, other anthropogenic pollutants and metals from natural sources). Secondly, summarize the bactericidal activity of NP and AB due to reactive oxygen species (ROS) production. The complete information was gathered from database and analysed as per the conjectured questions under laboratory versus environmental-relevant conditions (1. Fate of NPs and ABs, and 2. Will the presence of NPs and ABs alone and their mixtures influence the ROS concentration and antibacterial activity), and proposed six reactions to describe the fate of NP and AB in natural aquatic settings. However, laboratory-based studies revealed that NP and AB fate largely depend on the ionic strength, organic matter content and pH of the matrix whereas field based information is missing about this. The former was performed at sterile conditions using sophisticated instruments and standard protocol as compared to latter and can't be replicated under natural aquatic settings due to lack of: (i) accurate environmental concentration of NPs and ABs, (ii) knowledge of bacterial type and their concentration, (iii) optimized protocol and tracking systems. The author's recommendation is to verify the proposed reactions experimentally by using the frequently found pairs of NPs and ABs in the natural aquatic settings. Further, ranked them on their decreasing order of toxicity and informed regulatory bodies for further action. Overall research is needed in the suggested directions to reduce uncertainty behind the impacts of NPs and ABs on the aquatic settings and their role in bactericidal activity.
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Affiliation(s)
- Neha Tyagi
- Department of Civil Engineering, Indian Institute of Technology Delhi, New Delhi, 110016, India.
| | - Arun Kumar
- Department of Civil Engineering, Indian Institute of Technology Delhi, New Delhi, 110016, India.
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45
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D’Lima L, Phadke M, Ashok VD. Biogenic silver and silver oxide hybrid nanoparticles: a potential antimicrobial against multi drug-resistant Pseudomonas aeruginosa. NEW J CHEM 2020. [DOI: 10.1039/c9nj04216d] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ag/Ag2O NPs synthesized using K. abolonga exhibited antimicrobial activity along with carbenicillin against MDR P. aeruginosa.
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Affiliation(s)
- Lynn D’Lima
- Department of Microbiology
- S.I.E.S College of Science, Arts and Commerce
- Mumbai 400022
- India
| | - Manju Phadke
- Department of Microbiology
- S.I.E.S College of Science, Arts and Commerce
- Mumbai 400022
- India
| | - Vishal Dev Ashok
- Department of Physics
- S.I.E.S College of Science, Arts and Commerce
- Mumbai 400022
- India
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46
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Borzenkov M, Pallavicini P, Taglietti A, D’Alfonso L, Collini M, Chirico G. Photothermally active nanoparticles as a promising tool for eliminating bacteria and biofilms. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2020; 11:1134-1146. [PMID: 32802716 PMCID: PMC7404213 DOI: 10.3762/bjnano.11.98] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Accepted: 06/29/2020] [Indexed: 05/11/2023]
Abstract
Bacterial contamination is a severe issue that affects medical devices, hospital tools and surfaces. When microorganisms adhere to a surface (e.g., medical devices or implants) they can develop into a biofilm, thereby becoming more resistant to conventional biocides and disinfectants. Nanoparticles can be used as an antibacterial agent in medical instruments or as a protective coating in implantable devices. In particular, attention is being drawn to photothermally active nanoparticles that are capable of converting absorbed light into heat. These nanoparticles can efficiently eradicate bacteria and biofilms upon light activation (predominantly near the infrared to near-infrared spectral region) due a rapid and pronounced local temperature increase. By using this approach new, protective, antibacterial surfaces and materials can be developed that can be remotely activated on demand. In this review, we summarize the state-of-the art regarding the application of various photothermally active nanoparticles and their corresponding nanocomposites for the light-triggered eradication of bacteria and biofilms.
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Affiliation(s)
- Mykola Borzenkov
- Department of Medicine and Surgery, Nanomedicine Center, University of Milano-Bicocca, piazza dell’Ateneo Nuovo, 20126, Milan, Italy
| | | | - Angelo Taglietti
- Department of Chemistry, University of Pavia, via Taramelli 12, 27100, Pavia, Italy
| | - Laura D’Alfonso
- Department of Physics, University of Milano-Bicocca, piazza dell’Ateneo Nuovo, 20126, Milan, Italy
| | - Maddalena Collini
- Department of Physics, University of Milano-Bicocca, piazza dell’Ateneo Nuovo, 20126, Milan, Italy
| | - Giuseppe Chirico
- Department of Physics, University of Milano-Bicocca, piazza dell’Ateneo Nuovo, 20126, Milan, Italy
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47
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Allkja J, Bjarnsholt T, Coenye T, Cos P, Fallarero A, Harrison JJ, Lopes SP, Oliver A, Pereira MO, Ramage G, Shirtliff ME, Stoodley P, Webb JS, Zaat SAJ, Goeres DM, Azevedo NF. Minimum information guideline for spectrophotometric and fluorometric methods to assess biofilm formation in microplates. Biofilm 2019; 2:100010. [PMID: 33447797 PMCID: PMC7798448 DOI: 10.1016/j.bioflm.2019.100010] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 11/08/2019] [Accepted: 11/10/2019] [Indexed: 12/11/2022] Open
Abstract
The lack of reproducibility of published studies is one of the major issues facing the scientific community, and the field of biofilm microbiology has been no exception. One effective strategy against this multifaceted problem is the use of minimum information guidelines. This strategy provides a guide for authors and reviewers on the necessary information that a manuscript should include for the experiments in a study to be clearly interpreted and independently reproduced. As a result of several discussions between international groups working in the area of biofilms, we present a guideline for the spectrophotometric and fluorometric assessment of biofilm formation in microplates. This guideline has been divided into 5 main sections, each presenting a comprehensive set of recommendations. The intention of the minimum information guideline is to improve the quality of scientific communication that will augment interlaboratory reproducibility in biofilm microplate assays.
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Affiliation(s)
- Jontana Allkja
- LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465, Porto, Portugal.,Montana State University, Center for Biofilm Engineering, 366 Barnard Hall, Bozeman, MT, 59717, USA
| | - Thomas Bjarnsholt
- Department of Clinical Microbiology, Rigshospitalet, 2100, Copenhagen, Denmark.,Department of Immunology and Microbiology, Costerton Biofilm Center, Faculty of Health Sciences University of Copenhagen, 2200, Copenhagen, Denmark.,ESCMID Study Group for Biofilms, Basel, Switzerland
| | - Tom Coenye
- ESCMID Study Group for Biofilms, Basel, Switzerland.,Laboratory of Pharmaceutical Microbiology, Ghent University, Ghent, Belgium
| | - Paul Cos
- Laboratory for Microbiology, Parasitology and Hygiene (LMPH), Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, University of Antwerp, Antwerp, Belgium
| | - Adyary Fallarero
- Pharmaceutical Design and Discovery (PharmDD), Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Viikinkaari 5E, P.O. Box 56, FI-00014, Helsinki, Finland
| | - Joe J Harrison
- Department of Biological Sciences, University of Calgary, 2500 University Drive NW, Calgary, AB, T2N 1N4, Canada
| | - Susana P Lopes
- Centre of Biological Engineering (CEB), Laboratório de Investigação Em Biofilmes Rosário Oliveira (LIBRO), University of Minho, Braga, Portugal
| | - Antonio Oliver
- Servicio de Microbiología, Hospital Universitario Son Espases, Instituto de Investigación Sanitaria Illes Balears (IdISBa), Palma de Mallorca, Spain
| | - Maria Olivia Pereira
- Centre of Biological Engineering (CEB), Laboratório de Investigação Em Biofilmes Rosário Oliveira (LIBRO), University of Minho, Braga, Portugal
| | - Gordon Ramage
- Oral Sciences Research Group, University of Glasgow Dental School, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom.,ESCMID Study Group for Biofilms, Basel, Switzerland
| | - Mark E Shirtliff
- Department of Microbial Pathogenesis, School of Dentistry, University of Maryland, Baltimore, MD, 21201, USA
| | - Paul Stoodley
- Department of Microbial Infection and Immunity and Orthopedics, The Ohio State University, Columbus, OH, 43210, USA.,National Centre for Advanced Tribiology at Southampton (nCATS), Department of Mechanical Engineering, University of Southampton, Southampton, SO17 1BJ, UK.,National Biofilms Innovation Centre, School of Biological Sciences, University of Southampton, Southampton, SO17 1BJ, UK
| | - Jeremy S Webb
- National Biofilms Innovation Centre, School of Biological Sciences, University of Southampton, Southampton, SO17 1BJ, UK
| | - Sebastian A J Zaat
- Amsterdam UMC, University of Amsterdam, Department of Medical Microbiology, Amsterdam Infection and Immunity Institute, Meibergdreef 9, 1105AZ, Amsterdam, the Netherlands
| | - Darla M Goeres
- Montana State University, Center for Biofilm Engineering, 366 Barnard Hall, Bozeman, MT, 59717, USA
| | - Nuno Filipe Azevedo
- LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465, Porto, Portugal
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48
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Figueiredo EP, Ribeiro JM, Nishio EK, Scandorieiro S, Costa AF, Cardozo VF, Oliveira AG, Durán N, Panagio LA, Kobayashi RKT, Nakazato G. New Approach For Simvastatin As An Antibacterial: Synergistic Effect With Bio-Synthesized Silver Nanoparticles Against Multidrug-Resistant Bacteria. Int J Nanomedicine 2019; 14:7975-7985. [PMID: 31632012 PMCID: PMC6781849 DOI: 10.2147/ijn.s211756] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Accepted: 07/29/2019] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Multidrug-resistant bacteria such as extended-spectrum beta-lactamase (ESBL), Enterobacteriaceae, and methicillin-resistant Staphylococcus aureus (MRSA) pose a challenge to the human health care system. MRSA is among the major causes of hospital-acquired and community infections. METHODS Therefore, in the present study, we evaluated the antibacterial activity of silver nanoparticles synthesized by Fusarium oxysporum (AgNPbio) in combination with simvastatin against reference and multidrug-resistant bacterial strains. RESULTS Simvastatin showed a minimal inhibitory concentration (MIC) ranging from 0.062 to 0.25 mg mL-1 against MRSA. AgNPbio with a size of 77.68± 33.95 nm and zeta potential -34.6 ± 12.7 mV showed an MIC of 0.212 mg mL-1 against S. aureus including MRSA strains. The checkerboard assay and time-kill curves exhibited a synergistic effect of the simvastatin-AgNPbio combination on antibacterial activity against MRSA strains. The combination of simvastatin and AgNPbio demonstrated antibacterial activity against Escherichia coli producing ESBL. Scanning electron microscopy showed the formation of cell surface protrusions after treatment with AgNPbio and the formation of a large amorphous mass after treatment with simvastatin, both in MRSA. CONCLUSION Our results indicate that the combination of AgNPbio and simvastatin could be a great future alternative in the control of bacterial infections, where, when combined with simvastatin, smaller doses of AgNPbio are required, with the same antibacterial activity.
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Affiliation(s)
- EP Figueiredo
- Department of Microbiology, Center of Biological Sciences, Universidade Estadual de Londrina, Londrina, Paraná, Brazil
| | - JM Ribeiro
- Department of Microbiology, Center of Biological Sciences, Universidade Estadual de Londrina, Londrina, Paraná, Brazil
| | - EK Nishio
- Department of Microbiology, Center of Biological Sciences, Universidade Estadual de Londrina, Londrina, Paraná, Brazil
| | - S Scandorieiro
- Department of Microbiology, Center of Biological Sciences, Universidade Estadual de Londrina, Londrina, Paraná, Brazil
| | - AF Costa
- NanoBioss, Institute of Chemistry, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil
| | - VF Cardozo
- Department of Microbiology, Center of Biological Sciences, Universidade Estadual de Londrina, Londrina, Paraná, Brazil
| | - AG Oliveira
- Department of Microbiology, Center of Biological Sciences, Universidade Estadual de Londrina, Londrina, Paraná, Brazil
| | - N Durán
- NanoBioss, Institute of Chemistry, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil
- Institute of Chemistry, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil
- LNNano (National Laboratory of Nanotecnology), CNPEM, Campinas, São Paulo, Brazil
| | - LA Panagio
- Department of Microbiology, Center of Biological Sciences, Universidade Estadual de Londrina, Londrina, Paraná, Brazil
| | - RKT Kobayashi
- Department of Microbiology, Center of Biological Sciences, Universidade Estadual de Londrina, Londrina, Paraná, Brazil
| | - G Nakazato
- Department of Microbiology, Center of Biological Sciences, Universidade Estadual de Londrina, Londrina, Paraná, Brazil
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Nazer S, Andleeb S, Ali S, Gulzar N, Iqbal T, Khan MAR, Raza A. Synergistic Antibacterial Efficacy of Biogenic Synthesized Silver Nanoparticles using Ajuga bractosa with Standard Antibiotics: A Study Against Bacterial Pathogens. Curr Pharm Biotechnol 2019; 21:206-218. [PMID: 31573882 DOI: 10.2174/1389201020666191001123219] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 06/29/2019] [Accepted: 08/29/2019] [Indexed: 01/09/2023]
Abstract
BACKGROUND Multi-drug resistance in bacterial pathogens is a major concern of today. Green synthesis technology is being used to cure infectious diseases. OBJECTIVES The aim of the current research was to analyze the antibacterial, antioxidant, and phytochemical screening of green synthesized silver nanoparticles using Ajuga bracteosa. METHODS Extract of A. bracteosa was prepared by maceration technique. Silver nanoparticles were synthesized using A. bracteosa extract and were confirmed by UV-Vis spectrophotometer, Scanning Electron Microscope (SEM) and Fourier Transform Infrared Spectroscopy (FTIR). The antibacterial, anti-biofilm, cell proliferation inhibition, TLC-Bioautography, TLC-Spot screening, antioxidant, and phytochemical screening were also investigated. RESULTS UV-Vis spectrum and Scanning electron microscopy confirmed the synthesis of green nanoparticles at 400 nm with tube-like structures. FTIR spectrum showed that functional groups of nanoparticles have a role in capping and stability of AgNP. Agar well diffusion assay represented the maximum antibacterial effect of ABAgNPs against Escherichia coli, Klebsiella pneumoniae, Streptococcus pyogenes, Staphylococcus aureus, and Pseudomonas aeruginosa at 0.10 g/mL concentration compared to ABaqu. Two types of interactions among nanoparticles, aqueous extract, and antibiotics (Synergistic and additive) were recorded against tested pathogens. Crystal violet, MTT, TLC-bio-autography, and spot screening supported the findings of the antibacterial assay. Highest antioxidant potential effect in ABaqu was 14.62% (DPPH) and 13.64% (ABTS) while 4.85% (DPPH) and 4.86% (ABTS) was recorded in ABAgNPs. Presence of phytochemical constituents showed pharmacological importance. CONCLUSION It was concluded that green synthesis is an innovative technology in which natural products are conjugated with metallic particles and are used against infectious pathogens. The current research showed the significant use of green nanoparticles against etiological agents.
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Affiliation(s)
- Sadia Nazer
- Microbial Biotechnology Laboratory, Department of Zoology, University of Azad Jammu and Kashmir, Muzaffarabad, 13100, Pakistan
| | - Saiqa Andleeb
- Microbial Biotechnology Laboratory, Department of Zoology, University of Azad Jammu and Kashmir, Muzaffarabad, 13100, Pakistan
| | - Shaukat Ali
- Department of Zoology, GC University, Lahore, Pakistan
| | - Nazia Gulzar
- Microbial Biotechnology Laboratory, Department of Zoology, University of Azad Jammu and Kashmir, Muzaffarabad, 13100, Pakistan
| | - Tariq Iqbal
- Department of Physics, University of Azad Jammu and Kashmir, Muzaffarabad, 13100, Pakistan
| | - Muhammad A R Khan
- Department of Physics, University of Azad Jammu and Kashmir, Muzaffarabad, 13100, Pakistan
| | - Abida Raza
- National Institute for Lasers and Optronics (NILOP), Pakistan Atomic Energy Commission, Islamabad, Pakistan
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50
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Lotha R, Shamprasad BR, Sundaramoorthy NS, Nagarajan S, Sivasubramanian A. Biogenic phytochemicals (cassinopin and isoquercetin) capped copper nanoparticles (ISQ/CAS@CuNPs) inhibits MRSA biofilms. Microb Pathog 2019; 132:178-187. [PMID: 31063809 DOI: 10.1016/j.micpath.2019.05.005] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 05/03/2019] [Accepted: 05/03/2019] [Indexed: 11/24/2022]
Abstract
Purified glycosides, Isoquercetin and Cassinopin from Crotalaria candicans were selected for the synthesis of biogenic copper nanoparticles (CuNPs).The designed biogenic CuNPs was characterized and when evaluated against panel of gram negative and positive bacteria, the biogenic CuNPs were found to be more effective against methicillin resistant Staphylococcus aureus (MRSA). Antibacterial, anti-biofilm effects and time kill studies confirmed the ability of biogenic CuNPs to curtail MRSA. Scanning electron microscopy, Crystal violet staining and fluorescent live-dead imaging showed that treatment with sub lethal levels of glycoside capped CuNPs resulted in greater than 50% decline in biofilm formation by MRSA, which implies that anti-biofilm effect of biogenic CuNPs is not dependent on antibacterial effect. Alizarin red assay implied that prolonged treatment of biogenic CuNPs in presence of MRSA, releases Cu(II) ions and hence antibiofilm effect is primarily mediated by NP and is not due to released Cu(II) ion. The NPs caused altered membrane permeability and reduced surface hydrophobicity, thus accounting for its antibiofilm effect.
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Affiliation(s)
- Robert Lotha
- Aravind Sivasubramanian, Department of Chemistry, School of Chemical and Biotechnology, SASTRA Deemed to Be University, Thanjavur, Tamil Nadu, India
| | - Bhanuvalli R Shamprasad
- Aravind Sivasubramanian, Department of Chemistry, School of Chemical and Biotechnology, SASTRA Deemed to Be University, Thanjavur, Tamil Nadu, India
| | - Niranjana Sri Sundaramoorthy
- Saisubramanian Nagarajan, Center for Research on Infectious Diseases, School of Chemical and Biotechnology, SASTRA Deemed to Be University, Thanjavur, Tamil Nadu, India
| | - Saisubramanian Nagarajan
- Saisubramanian Nagarajan, Center for Research on Infectious Diseases, School of Chemical and Biotechnology, SASTRA Deemed to Be University, Thanjavur, Tamil Nadu, India.
| | - Aravind Sivasubramanian
- Aravind Sivasubramanian, Department of Chemistry, School of Chemical and Biotechnology, SASTRA Deemed to Be University, Thanjavur, Tamil Nadu, India.
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