Silver nanoparticles impede the biofilm formation by Pseudomonas aeruginosa and Staphylococcus epidermidis

Kalishwaralal, Kalimuthu; BarathManiKanth, Selvaraj; Pandian, Sureshbabu Ram Kumar; Deepak, Venkataraman; Gurunathan, Sangiliyandi

doi:10.1016/j.colsurfb.2010.04.014

Cited by 628 publications

(381 citation statements)

References 26 publications

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“…The nanoparticles analyzed in the study were of quite large dimensions (over 60 nm) [80]. One of the first reports on the antibiotic effect of AgNPs on P. aeruginosa and S. epidermidis, and their effect on biofilm formation, was produced by Kalishwaralal et al [81]. The study focused on two important pathogens causing keratitis and the effect of a 2 h of treatment with AgNPs at a concentration of 100 μM showed that a 95% and 98% decrease of the biofilm was obtained.…”

Section: Agnps Antibiofilm Activitymentioning

confidence: 99%

Silver Nanoparticles as Potential Antibacterial Agents

et al. 2015

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Multi-drug resistance is a growing problem in the treatment of infectious diseases and the widespread use of broad-spectrum antibiotics has produced antibiotic resistance for many human bacterial pathogens. Advances in nanotechnology have opened new horizons in nanomedicine, allowing the synthesis of nanoparticles that can be assembled into complex architectures. Novel studies and technologies are devoted to understanding the mechanisms of disease for the design of new drugs, but unfortunately infectious diseases continue to be a major health burden worldwide. Since ancient times, silver was known for its anti-bacterial effects and for centuries it has been used for prevention and control of disparate infections. Currently nanotechnology and nanomaterials are fully integrated in common applications and objects that we use every day. In addition, the silver nanoparticles are attracting much interest because of their potent antibacterial activity. Many studies have also shown an important activity of silver nanoparticles against bacterial biofilms. This review aims to OPEN ACCESSMolecules 2015, 20 8857 summarize the emerging efforts to address current challenges and solutions in the treatment of infectious diseases, particularly the use of nanosilver antimicrobials.

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Section: Agnps Antibiofilm Activitymentioning

confidence: 99%

Silver Nanoparticles as Potential Antibacterial Agents

et al. 2015

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“…Therefore, novel antibiotics with newer mechanism of action are urgently needed to treat infections caused by MDR-bacterial strains. Numerous nanoparticle have been reported to possess considerable activity against MDR-bacterial strains 2-5 including resistant Enterobacteriaceae (E. coli, K. pneumoniae), non-fermenters (Acinetobacter baumanii, Pseudomonas aeruginosa) and acid-fast bacteria (Mycobacterium tuberculosis) as well as resistant Gram-positives such as vancomycin resistant Enterococci and methicillin-resistant Staphylococcus aureus 5,6 . Furthermore, new strategies like surface modifi cation of nanoparticles are being explored to enhance their potency against pathogenic MDR bacterial strains 7 .…”

Section: Introductionmentioning

confidence: 99%

Antibacterial activity of iron oxide nanoparticles synthesized by co-precipitation technology against Bacillus cereus and Klebsiella pneumoniae

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et al. 2017

Polish Journal of Chemical Technology

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The present study investigates the synthesis and characterization of iron oxide nanoparticles (Fe 3 O 4 -NPs) for their antibacterial potential against Bacillus cereus and Klebsiella pneumonia by modifi ed disc diffusion and broth agar dilution methods. DLS and XRD results revealed the average size of synthesized Fe 3 O 4 -NPs as 24 nm while XPS measurement exhibited the spin-orbit peak of Fe 2p 3/2 binding energy at 511 eV. Fe 3 O 4 -NPs inhibited the growth of K. pneumoniae and B. cereus in both liquid and soild agar media, and displayed 26 mm and 22 mm zone of inhibitions, respectively. MIC of Fe 3 O 4 -NPs was found to be 5 μg/mL against these strains. However, MBC for these strains was observed at 40 μg/mL concentration of Fe 3 O 4 -NPs for exhibiting 40-50% loss in viable bacterial cells and 80 μg/mL concentration of Fe 3 O 4 -NPs acted as bactericidal for causing 90-99% loss in viability. Hence, these nanoparticles can be explored for their additional antimicrobial and biomedical applications.

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“…Probably, AgNPs or released from them free Ag+ ions may be involved in blocking the formation of some compounds of EPS [1]. Kalishwaralal et al said that exopolysachharide synthesis is arrested by AgNPs, and microorganism cannot form biofilm [15]. Which may explain the impact of nanoparticles to inhibit the formation of the biofilms.…”

Section: Antibacterial Activity Of Chem-and Bio-agnpsmentioning

confidence: 99%

The effect of biologically and chemically synthesized silver nanoparticles (AgNPs) on biofilm formation

et al. 2017

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Abstract. Bionanotechnology has emerged up as integration between biotechnology and nanotechnology for developing biosynthetic and environmental-friendly technology for synthesis of nanomaterials. Different types of nanomaterials like copper, zinc, titanium, magnesium, gold, and silver have applied in the various industries but silver nanoparticles have proved to be most effective against bacteria, viruses and eukaryotic microorganisms. The antimicrobial property of silver nanoparticles are widely known. Due to strong antibacterial property silver nanoparticles are used, e.g. in clothing, food industry, sunscreens, cosmetics and many household and environmental appliances. The aim of the study was to compare the effect of silver nanoparticles (AgNPs) synthesized biologically and chemically on the biofilm formation. The biofilm was formed by the bacteria isolated from the water supply network. The commonly used crystal violet assay (CV) was applied for biofilm analysis. In this study effect of biologically synthesized Ag-NPs on the biofilm formation was evaluated.

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Silver nanoparticles impede the biofilm formation by Pseudomonas aeruginosa and Staphylococcus epidermidis

Cited by 628 publications

References 26 publications

Silver Nanoparticles as Potential Antibacterial Agents

Silver Nanoparticles as Potential Antibacterial Agents

Antibacterial activity of iron oxide nanoparticles synthesized by co-precipitation technology against Bacillus cereus and Klebsiella pneumoniae

The effect of biologically and chemically synthesized silver nanoparticles (AgNPs) on biofilm formation

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