1
|
Cazals M, Bédard E, Soucy C, Savard P, Prévost M. How clean is your ice machine? Revealing microbial amplification and presence of opportunistic pathogens in hospital ice-water machines. J Hosp Infect 2023; 141:9-16. [PMID: 37604277 DOI: 10.1016/j.jhin.2023.08.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 07/18/2023] [Accepted: 08/05/2023] [Indexed: 08/23/2023]
Abstract
BACKGROUND Ice machines in healthcare facilities have been suspected and even linked to outbreaks and pseudo-outbreaks. Guidelines exist for maintenance of these devices but there is no clear independent infection control standard, and little is known about their microbial contamination. AIM To evaluate the microbial contamination, amplification, and presence of opportunistic pathogens in ice-water machines in a healthcare facility. METHODS Concentrations of general microbial indicators (heterotrophic plate counts (HPC), total and intact cells), faecal indicators (enterococci) and opportunistic pathogens (Pseudomonas aeruginosa, non-tuberculous mycobacteria (NTM), Candida spp.) were measured in 36 ice-water machines on patient wards of a 772-bed hospital. Profile sampling was performed on five ice-water machines and adjacent faucets to identify sites of microbial proliferation. FINDINGS Candida spp. were found in half of ice-water samples while enterococci and P. aeruginosa were present in six and 11 drain inlets respectively. NTM were measured in all ice-water samples and 35 out of 36 biofilms. Pre-filters and ice machines are sites for additional amplification: NTM densities were on average 1.3 log10 higher in water of ice machine flushed 5 min compared to flushed adjacent tap water. CONCLUSION Ice machine design needs to be adapted to reduce microbial proliferation. The absence of correlation between HPC densities (current microbial indicators) and NTM concentrations suggests a need for cleaning efficiency indicators better correlated with opportunistic pathogens. Cleaning and disinfection guidelines of ice machines in healthcare facilities need to be improved, especially when ice is given to the most vulnerable patients, and NTM may be an efficiency indicator.
Collapse
Affiliation(s)
- M Cazals
- Civil, Geological and Mining Engineering Department, Polytechnique Montréal, Montreal, Canada.
| | - E Bédard
- Civil, Geological and Mining Engineering Department, Polytechnique Montréal, Montreal, Canada
| | - C Soucy
- Infection Prevention and Control, University of Montreal Hospital Centre (CHUM), Montreal, Canada
| | - P Savard
- Infection Prevention and Control, University of Montreal Hospital Centre (CHUM), Montreal, Canada; Department of Microbiology, Infectious Diseases and Immunology and University of Montreal Hospital Centre Research Centre (CRCHUM), University of Montreal, Canada
| | - M Prévost
- Civil, Geological and Mining Engineering Department, Polytechnique Montréal, Montreal, Canada
| |
Collapse
|
2
|
Guanidinium and Phosphonium Scaffolds Loaded with Silver Nanoparticles: Synthesis, Characterization, In Vitro Assessment of the Antibacterial Potential and Toxicity. J Inorg Organomet Polym Mater 2021. [DOI: 10.1007/s10904-021-01941-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
3
|
Weeks JW, Segars K, Guha S. The Research Gap in Non-tuberculous Mycobacterium (NTM) and Reusable Medical Devices. Front Public Health 2020; 8:399. [PMID: 32974254 PMCID: PMC7468515 DOI: 10.3389/fpubh.2020.00399] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Accepted: 07/07/2020] [Indexed: 11/15/2022] Open
Affiliation(s)
- Jon W Weeks
- Center for Devices and Radiological Health, U. S. Food and Drug Administration, Silver Spring, MD, United States
| | - Katharine Segars
- Center for Devices and Radiological Health, U. S. Food and Drug Administration, Silver Spring, MD, United States
| | - Suvajyoti Guha
- Center for Devices and Radiological Health, U. S. Food and Drug Administration, Silver Spring, MD, United States
| |
Collapse
|
4
|
Simões MF, Ottoni CA, Antunes A. Mycogenic Metal Nanoparticles for the Treatment of Mycobacterioses. Antibiotics (Basel) 2020; 9:E569. [PMID: 32887358 PMCID: PMC7559022 DOI: 10.3390/antibiotics9090569] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 08/31/2020] [Accepted: 08/31/2020] [Indexed: 12/23/2022] Open
Abstract
Mycobacterial infections are a resurgent and increasingly relevant problem. Within these, tuberculosis (TB) is particularly worrying as it is one of the top ten causes of death in the world and is the infectious disease that causes the highest number of deaths. A further concern is the on-going emergence of antimicrobial resistance, which seriously limits treatment. The COVID-19 pandemic has worsened current circumstances and future infections will be more incident. It is urgent to plan, draw solutions, and act to mitigate these issues, namely by exploring new approaches. The aims of this review are to showcase the extensive research and application of silver nanoparticles (AgNPs) and other metal nanoparticles (MNPs) as antimicrobial agents. We highlight the advantages of mycogenic synthesis, and report on their underexplored potential as agents in the fight against all mycobacterioses (non-tuberculous mycobacterial infections as well as TB). We propose further exploration of this field.
Collapse
Affiliation(s)
- Marta Filipa Simões
- State Key Laboratory of Lunar and Planetary Sciences, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macau SAR, China;
| | | | - André Antunes
- State Key Laboratory of Lunar and Planetary Sciences, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macau SAR, China;
| |
Collapse
|
5
|
González-Fernández S, Lozano-Iturbe V, García B, Andrés LJ, Menéndez MF, Rodríguez D, Vazquez F, Martín C, Quirós LM. Antibacterial effect of silver nanorings. BMC Microbiol 2020; 20:172. [PMID: 32560673 PMCID: PMC7304143 DOI: 10.1186/s12866-020-01854-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Accepted: 06/12/2020] [Indexed: 12/11/2022] Open
Abstract
Background The emergence and expansion of antibiotic resistance makes it necessary to have alternative anti-infective agents, among which silver nanoparticles (AgNPs) display especially interesting properties. AgNPs carry out their antibacterial action through various molecular mechanisms, and the magnitude of the observed effect is dependent on multiple, not fully understood, aspects, particle shape being one of the most important. In this article, we conduct a study of the antibacterial effect of a recently described type of AgNP: silver nanorings (AgNRs), making comparisons with other alternative types of AgNP synthesized in parallel using the same methodology. Results When they act on planktonic forms, AgNRs produce a smaller effect on the viability of different bacteria than nanoparticles with other structures although their effect on growth is more intense over a longer period. When their action on biofilms is analyzed, AgNRs show a greater concentration-dependent effect. In both cases it was observed that the effect on inhibition depends on the microbial species, but not its Gram positive or negative nature. Growth patterns in silver-resistant Salmonella strains suggest that AgNRs work through different mechanisms to other AgNPs. The antibacterial effect is also produced to some extent by the conditioning of culture media or water by contact with AgNPs but, at least over short periods of time, this is not due to the release of Ag ions. Conclusions AgNRs constitute a new type of AgNP, whose antibacterial properties depend on their shape, and is capable of acting efficiently on both planktonic bacteria and biofilms.
Collapse
Affiliation(s)
- Sara González-Fernández
- Instituto Universitario Fernández-Vega, Instituto de Investigación Sanitaria del Principado de Asturias, and Departamento de Biología Funcional, Universidad de Oviedo, 33006, Oviedo, Spain
| | - Víctor Lozano-Iturbe
- Instituto Universitario Fernández-Vega, Instituto de Investigación Sanitaria del Principado de Asturias, and Departamento de Biología Funcional, Universidad de Oviedo, 33006, Oviedo, Spain
| | - Beatriz García
- Instituto Universitario Fernández-Vega, Instituto de Investigación Sanitaria del Principado de Asturias, and Departamento de Biología Funcional, Universidad de Oviedo, 33006, Oviedo, Spain
| | - Luis J Andrés
- Departamento de Fotónica-ITMA Materials Technology, 33490, Avilés, Spain
| | - Mª Fe Menéndez
- Departamento de Fotónica-ITMA Materials Technology, 33490, Avilés, Spain
| | - David Rodríguez
- Instituto Universitario de Oncología del Principado de Asturias and Departamento de Bioquímica y Biología Molecular, Universidad de Oviedo, 33006, Oviedo, Spain
| | - Fernando Vazquez
- Instituto Universitario Fernández-Vega, Instituto de Investigación Sanitaria del Principado de Asturias, and Departamento de Biología Funcional, Universidad de Oviedo, 33006, Oviedo, Spain.,Servicio de Microbiología, Hospital Universitario Central de Asturias, 33011, Oviedo, Spain
| | - Carla Martín
- Instituto Universitario Fernández-Vega, Instituto de Investigación Sanitaria del Principado de Asturias, and Departamento de Biología Funcional, Universidad de Oviedo, 33006, Oviedo, Spain
| | - Luis M Quirós
- Instituto Universitario Fernández-Vega, Instituto de Investigación Sanitaria del Principado de Asturias, and Departamento de Biología Funcional, Universidad de Oviedo, 33006, Oviedo, Spain.
| |
Collapse
|
6
|
Tăbăran AF, Matea CT, Mocan T, Tăbăran A, Mihaiu M, Iancu C, Mocan L. Silver Nanoparticles for the Therapy of Tuberculosis. Int J Nanomedicine 2020; 15:2231-2258. [PMID: 32280217 PMCID: PMC7127828 DOI: 10.2147/ijn.s241183] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Accepted: 02/15/2020] [Indexed: 12/12/2022] Open
Abstract
Rapid emergence of aggressive, multidrug-resistant Mycobacteria strain represents the main cause of the current antimycobacterial-drug crisis and status of tuberculosis (TB) as a major global health problem. The relatively low-output of newly approved antibiotics contributes to the current orientation of research towards alternative antibacterial molecules such as advanced materials. Nanotechnology and nanoparticle research offers several exciting new-concepts and strategies which may prove to be valuable tools in improving the TB therapy. A new paradigm in antituberculous therapy using silver nanoparticles has the potential to overcome the medical limitations imposed in TB treatment by the drug resistance which is commonly reported for most of the current organic antibiotics. There is no doubt that AgNPs are promising future therapeutics for the medication of mycobacterial-induced diseases but the viability of this complementary strategy depends on overcoming several critical therapeutic issues as, poor delivery, variable intramacrophagic antimycobacterial efficiency, and residual toxicity. In this paper, we provide an overview of the pathology of mycobacterial-induced diseases, andhighlight the advantages and limitations of silver nanoparticles (AgNPs) in TB treatment.
Collapse
Affiliation(s)
- Alexandru-Flaviu Tăbăran
- Department of Pathology, University of Agricultural Sciences and Veterinary Medicine, Cluj-Napoca, Romania
- Department of Nanomedicine, Regional Institute of Gastroenterology and Hepatology, Cluj-Napoca, Romania
| | - Cristian Tudor Matea
- Department of Nanomedicine, Regional Institute of Gastroenterology and Hepatology, Cluj-Napoca, Romania
| | - Teodora Mocan
- Department of Nanomedicine, Regional Institute of Gastroenterology and Hepatology, Cluj-Napoca, Romania
- Department of Physiology, University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Alexandra Tăbăran
- Department of Public Health and Food Hygiene, University of Agricultural Sciences and Veterinary Medicine, Cluj-Napoca, Romania
| | - Marian Mihaiu
- Department of Public Health and Food Hygiene, University of Agricultural Sciences and Veterinary Medicine, Cluj-Napoca, Romania
| | - Cornel Iancu
- Department of Nanomedicine, Regional Institute of Gastroenterology and Hepatology, Cluj-Napoca, Romania
- Third Surgery Department, University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Lucian Mocan
- Department of Nanomedicine, Regional Institute of Gastroenterology and Hepatology, Cluj-Napoca, Romania
- Department of Physiology, University of Medicine and Pharmacy, Cluj-Napoca, Romania
| |
Collapse
|
7
|
Chakraborty A, Biswas A. Structure, stability and chaperone function of Mycobacterium leprae Heat Shock Protein 18 are differentially affected upon interaction with gold and silver nanoparticles. Int J Biol Macromol 2020; 152:250-260. [PMID: 32084461 DOI: 10.1016/j.ijbiomac.2020.02.182] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 02/15/2020] [Accepted: 02/16/2020] [Indexed: 12/19/2022]
Abstract
Gold nanoparticles (AuNPs) and silver nanoparticles (AgNPs) have several biomedical applications. However, the effective usage of these two nanoparticles is impeded due to limited understanding of their interaction with proteins including small heat shock proteins (sHSPs). Specifically, no evidences of interaction of these two nanoparticles with HSP18 (an antigenic protein) which is an important factor for the growth and survival of M. leprae (the causative organism of leprosy) are available in the literature. Here, we report for the first time evidences of "HSP18-AuNPs/AgNPs interaction" and its impact on the structure and chaperone function of HSP18. Interaction of citrate-capped AuNPs/AgNPs (~20 nm diameter) to HSP18 alters the secondary and tertiary structure of HSP18 in a distinctly opposite manner; while "HSP18-AuNPs interaction" leads to oligomeric association, "HSP18-AgNPs interaction" results in oligomeric dissociation of the protein. Surface hydrophobicity, thermal stability, chaperone function of HSP18 and survival of thermally stressed E. coli harbouring HSP18 are enhanced upon AuNPs interaction, while all of them are reduced upon interaction with AgNPs. Altogether, our study reveals that HSP18 is an important drug target in leprosy and its chaperone function may possibly plays a vital role in the growth and survival of M. leprae pathogen in infected hosts.
Collapse
Affiliation(s)
- Ayon Chakraborty
- School of Basic Sciences, Indian Institute of Technology Bhubaneswar, Bhubaneswar, India
| | - Ashis Biswas
- School of Basic Sciences, Indian Institute of Technology Bhubaneswar, Bhubaneswar, India.
| |
Collapse
|
8
|
Perspectives on antibacterial performance of silver nanoparticle-loaded three-dimensional polymeric constructs. Biointerphases 2018; 13:06E404. [PMID: 30261733 DOI: 10.1116/1.5042426] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Silver nanoparticle (AgNP)-loaded polymeric constructs are widely investigated for potential applications as drug delivery systems, wound dressings, and antibiofouling biomaterials. Herein, the authors present several methods for fabricating such materials and evaluate their efficacy against Escherichia coli. H2O(v) plasma surface modification is employed to enhance material surface wettability (explored by water contact angle goniometry) and nanoparticle incorporation. Compositional analyses reveal that incorporation of AgNPs on the surface and bulk of the materials strongly depends on the fabrication methodology. More importantly, the nature of AgNP incorporation into the polymer has direct implications on the biocidal performance resulting from the release of Ag+. The materials fabricated herein fell significantly short of healthcare standards with respect to antimicrobial behavior, and, in comparing their results to numerous literature studies, the authors identified a glaring disparity in the way such results are often described. Thus, this work also contains a critical evaluation of the literature, highlighting select poor-performing materials to demonstrate several shortcomings in the quantitative analysis and reporting of the antibacterial efficacy of AgNP-loaded materials. Ultimately, recommendations for best practices for better evaluation of these constructs toward improved antibacterial efficacy in medical settings are provided.
Collapse
|
9
|
Enhanced physical and biological properties of silk fibroin nanofibers by layer-by-layer deposition of chitosan and rectorite. J Colloid Interface Sci 2018; 523:208-216. [DOI: 10.1016/j.jcis.2018.03.093] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Revised: 03/26/2018] [Accepted: 03/27/2018] [Indexed: 01/08/2023]
|
10
|
Saravanan M, Ramachandran B, Hamed B, Giardiello M. Barriers for the development, translation, and implementation of nanomedicine: an African perspective. ACTA ACUST UNITED AC 2018. [DOI: 10.1002/jin2.43] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Muthupandian Saravanan
- Department of Medical Microbiology and Immunology, School of Medicine, College of Health Science; Mekelle University; Mekelle 1871 Ethiopia
| | | | - Barabadi Hamed
- Department of Pharmaceutical Biotechnology, School of Pharmacy; Shahid Beheshti University of Medical Sciences; Tehran Iran
| | | |
Collapse
|
11
|
Phyto-mediated metallic nano-architectures via Melissa officinalis L.: synthesis, characterization and biological properties. Sci Rep 2017; 7:12428. [PMID: 28963525 PMCID: PMC5622205 DOI: 10.1038/s41598-017-12804-7] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Accepted: 09/14/2017] [Indexed: 02/02/2023] Open
Abstract
The development of methods for obtaining new materials with antimicrobial properties, based on green chemistry principles has been a target of research over the past few years. The present paper describes the phyto-mediated synthesis of metallic nano-architectures (gold and silver) via an ethanolic extract of Melissa officinalis L. (obtained by accelerated solvent extraction). Different analytic methods were applied for the evaluation of the extract composition, as well as for the characterization of the phyto-synthesized materials. The cytogenotoxicity of the synthesized materials was evaluated by Allium cepa assay, while the antimicrobial activity was examined by applying both qualitative and quantitative methods. The results demonstrate the synthesis of silver nanoparticles (average diameter 13 nm) and gold nanoparticles (diameter of ca. 10 nm); the bi-metallic nanoparticles proved to have a core-shell flower-like structure, composed of smaller particles (ca. 8 nm). The Ag nanoparticles were found not active on nuclear DNA damage. The Au nanoparticles appeared nucleoprotective, but were aggressive in generating clastogenic aberrations in A. cepa root meristematic cells. Results of the antimicrobial assays show that silver nanoparticles were active against most of the tested strains, as the lowest MIC value being obtained against B. cereus (approx. 0.0015 mM).
Collapse
|
12
|
Robertson J, Dalton J, Wiles S, Gizdavic-Nikolaidis M, Swift S. The tuberculocidal activity of polyaniline and functionalised polyanilines. PeerJ 2016; 4:e2795. [PMID: 28028468 PMCID: PMC5178338 DOI: 10.7717/peerj.2795] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Accepted: 11/15/2016] [Indexed: 12/17/2022] Open
Abstract
Tuberculosis is considered a leading cause of death worldwide. More than 95% of cases and deaths occur in low- and middle-income countries. In resource-limited countries, hospitals often lack adequate facilities to manage and isolate patients with infectious tuberculosis (TB), relying instead on personal protective equipment, such as facemasks, to reduce nosocomial transmission of the disease. Facemasks impregnated with an antimicrobial agent may be a cost-effective way of adding an extra level of protection against the spread of TB by reducing the risk of disease transmission. Conducting polymers, such as polyaniline (PANI), and their functionalised derivatives are a novel class of antimicrobial agents with potential as non-leaching additives to provide contamination resistant surfaces. We have investigated the antimicrobial action of PANI and a functionalised derivative, poly-3-aminobenzoic acid (P3ABA), against mycobacteria and have determined the optimal treatment time and concentration to achieve significant knockdown of Mycobacterium smegmatis and Mycobacterium tuberculosis on an agar surface. Results indicated that P3ABA is a potential candidate for use as an anti-tuberculoid agent in facemasks to reduce TB transmission.
Collapse
Affiliation(s)
- Julia Robertson
- Department of Molecular Medicine and Pathology, University of Auckland , Auckland , New Zealand
| | - James Dalton
- Department of Molecular Medicine and Pathology, University of Auckland , Auckland , New Zealand
| | - Siouxsie Wiles
- Department of Molecular Medicine and Pathology, University of Auckland, Auckland, New Zealand; Bioluminescent Superbugs Lab, Department of Molecular Medicine and Pathology, University of Auckland, Auckland, New Zealand
| | | | - Simon Swift
- Department of Molecular Medicine and Pathology, University of Auckland , Auckland , New Zealand
| |
Collapse
|
13
|
Singh BN, Prateeksha, Upreti DK, Singh BR, Defoirdt T, Gupta VK, De Souza AO, Singh HB, Barreira JCM, Ferreira ICFR, Vahabi K. Bactericidal, quorum quenching and anti-biofilm nanofactories: a new niche for nanotechnologists. Crit Rev Biotechnol 2016; 37:525-540. [PMID: 27684212 DOI: 10.1080/07388551.2016.1199010] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Despite several conventional potent antibacterial therapies, bacterial infections pose a significant threat to human health because they are emerging as the leading cause of death worldwide. Due to the development of antibiotic resistance in bacteria, there is a pressing demand to discover novel approaches for developing more effective therapies to treat multidrug-resistant bacterial strains and biofilm-associated infections. Therefore, attention has been especially devoted to a new and emerging branch of science "nanotechnology" to design non-conventional antimicrobial chemotherapies. A range of nanomaterials and nano-sized carriers for conventional antimicrobial agents have fully justified their potential to combat bacterial diseases by reducing cell viability, by attenuating quorum sensing, and by inhibiting/or eradicating biofilms. This communication summarizes emerging nano-antimicrobial therapies in treating bacterial infections, particularly using antibacterial, quorum quenching, and anti-biofilm nanomaterials as new approaches to tackle the current challenges in combating infectious diseases.
Collapse
Affiliation(s)
- Brahma N Singh
- a Pharmacognosy & Ethnopharmacology Division , CSIR-National Botanical Research Institute , Lucknow , India
| | - Prateeksha
- a Pharmacognosy & Ethnopharmacology Division , CSIR-National Botanical Research Institute , Lucknow , India
| | - Dalip K Upreti
- b Lichenology laboratory , Plant Biodiversity and Conservation Biology Division, CSIR-National Botanical Research Institute , Lucknow , Uttar Pradesh , India
| | - Braj Raj Singh
- c TERI-Deakin Nanobiotechnology Centre, TERI Gram, The Energy and Resources Institute, Gurgaon , Haryana , India.,d Centre of Excellence in Materials Science (Nanomaterials), Z. H. College of Engineering and Technology , Aligarh Muslim University, Aligarh , Uttar Pradesh , India
| | - Tom Defoirdt
- d Centre of Excellence in Materials Science (Nanomaterials), Z. H. College of Engineering and Technology , Aligarh Muslim University, Aligarh , Uttar Pradesh , India.,e Laboratory of Aquaculture & Artemia Reference Center , Ghent University , Gent , Belgium
| | - Vijai K Gupta
- f Molecular Glyco-biotechnology Group, Discipline of Biochemistry , School of Natural Sciences, National University of Ireland Galway , Galway , Ireland
| | | | - Harikesh Bahadur Singh
- h Mycology & Plant Pathology, Institute of Agricultural Sciences, Banaras Hindu University , Varanasi , Uttar Pardesh , India
| | - João C M Barreira
- i Mountain Research Centre (CIMO), ESA, Polytechnic Institute of Bragança , Campus de Santa Apolónia , Bragança , Portugal
| | - Isabel C F R Ferreira
- i Mountain Research Centre (CIMO), ESA, Polytechnic Institute of Bragança , Campus de Santa Apolónia , Bragança , Portugal
| | - Khabat Vahabi
- j Biologisch-Pharmazeutische Fakultät , Institut für Allgemeine Botanik und Pflanzenphysiologie, Friedrich-Schiller Universität Jena , Jena , Germany
| |
Collapse
|
14
|
Cheng G, Dai M, Ahmed S, Hao H, Wang X, Yuan Z. Antimicrobial Drugs in Fighting against Antimicrobial Resistance. Front Microbiol 2016; 7:470. [PMID: 27092125 PMCID: PMC4824775 DOI: 10.3389/fmicb.2016.00470] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Accepted: 03/21/2016] [Indexed: 01/18/2023] Open
Abstract
The outbreak of antimicrobial resistance, together with the lack of newly developed antimicrobial drugs, represents an alarming signal for both human and animal healthcare worldwide. Selection of rational dosage regimens for traditional antimicrobial drugs based on pharmacokinetic/pharmacodynamic principles as well as development of novel antimicrobials targeting new bacterial targets or resistance mechanisms are key approaches in tackling AMR. In addition to the cellular level resistance (i.e., mutation and horizontal gene transfer of resistance determinants), the community level resistance (i.e., bilofilms and persisters) is also an issue causing antimicrobial therapy difficulties. Therefore, anti-resistance and antibiofilm strategies have currently become research hotspot to combat antimicrobial resistance. Although metallic nanoparticles can both kill bacteria and inhibit biofilm formation, the toxicity is still a big challenge for their clinical applications. In conclusion, rational use of the existing antimicrobials and combinational use of new strategies fighting against antimicrobial resistance are powerful warranties to preserve potent antimicrobial drugs for both humans and animals.
Collapse
Affiliation(s)
- Guyue Cheng
- Ministry of Agriculture Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University Wuhan, China
| | - Menghong Dai
- Ministry of Agriculture Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University Wuhan, China
| | - Saeed Ahmed
- National Reference Laboratory of Veterinary Drug Residues (HZAU) and Ministry of Agriculture Key Laboratory for the Detection of Veterinary Drug Residues in Foods, Huazhong Agricultural University Wuhan, China
| | - Haihong Hao
- Ministry of Agriculture Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University Wuhan, China
| | - Xu Wang
- Ministry of Agriculture Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University Wuhan, China
| | - Zonghui Yuan
- Ministry of Agriculture Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural UniversityWuhan, China; National Reference Laboratory of Veterinary Drug Residues (HZAU) and Ministry of Agriculture Key Laboratory for the Detection of Veterinary Drug Residues in Foods, Huazhong Agricultural UniversityWuhan, China
| |
Collapse
|
15
|
Donnellan S, Tran L, Johnston H, McLuckie J, Stevenson K, Stone V. A rapid screening assay for identifying mycobacteria targeted nanoparticle antibiotics. Nanotoxicology 2016; 10:761-9. [DOI: 10.3109/17435390.2015.1124468] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
16
|
Gorbunova M, Lemkina L. New guanidine-containing nanocomposites impeding the growth of Staphylococcus epidermidis 33 and the biofilm formation. J Biomed Mater Res A 2015; 104:630-638. [PMID: 26489040 DOI: 10.1002/jbm.a.35596] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Revised: 09/29/2015] [Accepted: 10/20/2015] [Indexed: 11/07/2022]
Abstract
New water-soluble nanocomposites (AgNCs) based on Ag and copolymers of 2,2-diallyl-1,1,3,3-tetraethylguanidiniumchloride with N-vinylpyrrolidone [poly(AGC-VP)] and vinylacetate [poly(AGC-VA)] have been developed. Antibacterial action of new silver nanocomposites on S. epidermidis 33 (planctonic cells and biofilms) is reported in this study. AgNCs strongly inhibited biofilms formation of S. epidermidis 33. The viability of S. epidermidis 33 cells in biofilms was considerably reduced by new AgNCs. It has been shown that S. epidermidis 33 inactivation in biofilms occurs at AgNC concentrations > 5 times higher as compared to those inhibiting completely the planktonic cells. © 2015 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 104A: 630-638, 2016.
Collapse
Affiliation(s)
- Marina Gorbunova
- Institute of Technical Chemistry, Ural Branch of Russian Academy of Sciences, Laboratory of Biologically Active Compounds, Korolev Str. 3, Perm, 614013, Russia
| | - Larisa Lemkina
- Institute of Ecology and Genetics of Microorganisms, Ural Branch of Russian Academy of Sciences, Lenin Str. 11, Perm, 614090, Russia
| |
Collapse
|
17
|
Mutation of environmental mycobacteria to resist silver nanoparticles also confers resistance to a common antibiotic. Biometals 2014; 27:695-702. [PMID: 24989695 DOI: 10.1007/s10534-014-9761-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2014] [Accepted: 06/06/2014] [Indexed: 10/25/2022]
Abstract
Non-tuberculous mycobacteria are a threat to human health, gaining entry to the body through contaminated water systems, where they form persistent biofilms despite extensive attempts at disinfection. Silver is a natural antibacterial agent and in nanoparticle form activity is increased by a high surface area. Silver nanoparticles (AgNPs) have been used as alternative disinfectants in circulating water systems, washing machines and even clothing. However, nanoparticles, like any other antibiotic that has a pervasive durable presence, carry the risk of creating a resistant population. In this study Mycobacterium smegmatis strain mc(2)155 was cultured in AgNP enriched agar such that only a small population survived. Surviving cultures were isolated and re-exposed to AgNPs and AgNO3 and resistance to silver was compared to a negative control. After only a single exposure, mutant M. smegmatis populations were resistant to AgNPs and AgNO3. Further, the silver resistant mutants were exposed to antibiotics to determine if general resistance had been conferred. The minimum inhibitory concentration of isoniazid was four times higher for silver resistant mutants than for strain mc(2)155. However, core resistance was not conferred to other toxic metal ions. The mutants had lower resistance to CuSO4 and ZnSO4 than the mc(2)155 strain.
Collapse
|