Silver nanoparticles with anti microfouling effect: A study against marine biofilm forming bacteria

Inbakandan, D.; Kumar, Chanchal; Abraham, L. Stanley; Kirubagaran, R.; Venkatesan, R.; Khan, Shahanavaj

doi:10.1016/j.colsurfb.2013.06.048

Cited by 77 publications

(41 citation statements)

References 38 publications

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“…Recently, nanostructures have been effectively shown to inhibit. For example, Campoccia et al (2013) synthesized classes of bacteria repelling and antiadhesive surfaces on nanomaterials to inhibit bacterial biofilm, De Faria et al (2014) has decorated Ag NPs on graphene oxide (GO) nanosheets and showed an antibiofilm activities, Durmus et al (2013)) have shown an improved efficacy vancomycin with superparamagnetic iron oxide particles by manipulating the biofilm metabolic microenvironment, Inbakandan et al (2013)) showed efficacy of Ag NPs on marine biofilm-forming bacterial species, Ronen et al (2013)) reconstructed commercial polypropylene feed spacer with composite spacer containing zinc oxide nanostructures to repress biofilm development on membranes, Taglietti et al (2014)) designed a glass surface modified with AgNPs and showed biofilm inhibition in Staphylococcus epidermidis. However, in comparison to all these various reports, the present work is significant because (i) Au@ZnO nanostructures are relatively non-toxic and (ii) Au@ZnO nanostructures not only have inhibited the biofilm but also have reduced the viability of cells as well, which is important because if cells in the biofilm are not viable, they will not form biofilm and, thus, the biofilm would be permanently eradicated.…”

Section: Antibiofilm Activity Of Au@znomentioning

confidence: 99%

Hierarchical nanostructures of Au@ZnO: antibacterial and antibiofilm agent

Gholap

Warule²,

Sangshetti³

et al. 2016

Appl Microbiol Biotechnol

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The perpetual use of antibiotics against pathogens inadvertently altered their genes that have translated into an unprecedented resistance in microorganisms in the twentyfirst century. Many researchers have formulated bactericidal and bacteriostatic inorganic nanoparticle-based antiseptics that may be linked to broad-spectrum activity and far lower propensity to induce microbial resistance than organic-based antibiotics. Based on this line, herein, we present observations on microbial abatement using gold-based zinc oxide nanostructures (Au@ZnO) which are synthesized using hydrothermal route. Inhibition of microbial growth and biofilm using Au@ZnO is a unique feature of our study. Furthermore, this study evinces antimicrobial and antibiofilm mechanisms of photo-eradiated Au@ZnO by disruption of cellular functions and biofilms via reactive oxygen species (ROS)-dependent generation of superoxide anion radical. The present study is significant as it introduces novel functionalities to Au@ZnO in the biomedical field which can be extended to other species of microbial pathogens.

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Section: Antibiofilm Activity Of Au@znomentioning

confidence: 99%

Hierarchical nanostructures of Au@ZnO: antibacterial and antibiofilm agent

Gholap

Warule²,

Sangshetti³

et al. 2016

Appl Microbiol Biotechnol

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“…Silver in ionic or NP form has an oligodynamic effect with broad spectrum antibacterial activity and is especially effective against microbial colonizations associated with biomedical infections. The antibacterial mechanism of silver NPs (Ag NPs) is probably due to interactions between silver ions with bacterial wall sulfhydryl groups that interfere with and disrupt bacterial cell membranes [158], enzyme activities [159], respiratory chains [160], and cell proliferation [161]. Ag NPs have also been shown to disrupt biofilm matrices by perturbing intermolecular forces.…”

Section: Nanotechnology Based Strategies For Biofilm Control and Tmentioning

confidence: 99%

Recent Nanotechnology Approaches for Prevention and Treatment of Biofilm-Associated Infections on Medical Devices

Ramasamy

Lee

2016

BioMed Research International

220

126

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Bacterial colonization in the form of biofilms on surfaces causes persistent infections and is an issue of considerable concern to healthcare providers. There is an urgent need for novel antimicrobial or antibiofilm surfaces and biomedical devices that provide protection against biofilm formation and planktonic pathogens, including antibiotic resistant strains. In this context, recent developments in the material science and engineering fields and steady progress in the nanotechnology field have created opportunities to design new biomaterials and surfaces with anti-infective, antifouling, bactericidal, and antibiofilm properties. Here we review a number of the recently developed nanotechnology-based biomaterials and explain underlying strategies used to make antibiofilm surfaces.

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“…aeruginosa PAO1 biofilm formation was achieved by modifying the previously described assays. 24,25 Briefly, P. aeruginosa PAO1 was grown overnight in LB medium at 37°C with shaking at 250 rpm. Fresh LB medium was seeded with 1% of overnight culture and incubated at 37°C till an OD 600 of 1.0 was attained.…”

Section: Biofilm Inhibition Assaymentioning

confidence: 99%

Facile biofunctionalization of silver nanoparticles for enhanced antibacterial properties, endotoxin removal, and biofilm control

Lambadi¹,

Sharma²,

Kumar³

et al. 2015

IJN

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Infectious diseases cause a huge burden on healthcare systems worldwide. Pathogenic bacteria establish infection by developing antibiotic resistance and modulating the host’s immune system, whereas opportunistic pathogens like Pseudomonas aeruginosa adapt to adverse conditions owing to their ability to form biofilms. In the present study, silver nanoparticles were biofunctionalized with polymyxin B, an antibacterial peptide using a facile method. The biofunctionalized nanoparticles (polymyxin B-capped silver nanoparticles, PBSNPs) were assessed for antibacterial activity against multiple drug-resistant clinical strain Vibrio fluvialis and nosocomial pathogen P. aeruginosa . The results of antibacterial assay revealed that PBSNPs had an approximately 3-fold higher effect than the citrate-capped nanoparticles (CSNPs). Morphological damage to the cell membrane was followed by scanning electron microscopy, testifying PBSNPs to be more potent in controlling the bacterial growth as compared with CSNPs. The bactericidal effect of PBSNPs was further confirmed by Live/Dead staining assays. Apart from the antibacterial activity, the biofunctionalized nanoparticles were found to resist biofilm formation. Electroplating of PBSNPs onto stainless steel surgical blades retained the antibacterial activity against P. aeruginosa . Further, the affinity of polymyxin for endotoxin was exploited for its removal using PBSNPs. It was found that the prepared nanoparticles removed 97% of the endotoxin from the solution. Such multifarious uses of metal nanoparticles are an attractive means of enhancing the potency of antimicrobial agents to control infections.

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Silver nanoparticles with anti microfouling effect: A study against marine biofilm forming bacteria

Cited by 77 publications

References 38 publications

Hierarchical nanostructures of Au@ZnO: antibacterial and antibiofilm agent

Hierarchical nanostructures of Au@ZnO: antibacterial and antibiofilm agent

Recent Nanotechnology Approaches for Prevention and Treatment of Biofilm-Associated Infections on Medical Devices

Facile biofunctionalization of silver nanoparticles for enhanced antibacterial properties, endotoxin removal, and biofilm control

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