Characterization and antimicrobial performance of nano silver coatings on leather materials

In this study, the characterization and the antimicrobial properties of nano silver (nAg) coating on leather were investigated. For this purpose, turbidity, viscosity and pH of nAg solutions prepared by the sol-gel method were measured. The formation of films from these solutions was characterized a...

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Published in:Brazilian journal of microbiology 2015-03, Vol.46 (1), p.41-48
Main Authors: Lkhagvajav, N, Koizhaiganova, M, Yasa, I, Çelik, E, Sari, Ö
Format: Article
Language:eng ; por
Subjects:
Anti-Infective Agents - pharmacology
Antimicrobial agents
Bacteria - drug effects
Bacterial Load
Chemical Phenomena
Environmental Microbiology
Fungi - drug effects
Hydrogen-Ion Concentration
Leather & leather products
MICROBIOLOGY
Microscopy, Electron, Scanning
Nanomaterials
Nanostructures
Silver - pharmacology
Studies
Surface Properties
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Koizhaiganova, M
Yasa, I
Çelik, E
Sari, Ö
description In this study, the characterization and the antimicrobial properties of nano silver (nAg) coating on leather were investigated. For this purpose, turbidity, viscosity and pH of nAg solutions prepared by the sol-gel method were measured. The formation of films from these solutions was characterized according to temperature by Differential Thermal Analysis-Thermogravimetry (DTA-TG) equipment. The surface morphology of treated leathers was observed using Scanning Electron Microscopy (SEM). The antimicrobial performance of nAg coatings on leather materials to the test microorganisms as Escherichia coli , Staphylococcus aureus , Candida albicans and Aspergillius niger was evaluated by the application of qualitative (Agar overlay method) and quantitative (percentage of microbial reduction) tests. According to qualitative test results it was found that 20 μg/cm (2) and higher concentrations of nAg on the leather samples were effective against all microorganisms tested. Moreover, quantitative test results showed that leather samples treated with 20 μg/cm (2) of nAg demonstrated the highest antibacterial activity against E. coli with 99.25% bacterium removal, whereas a 10 μg/cm (2) concentration of nAg on leather was enough to exhibit the excellent percentage reduction against S. aureus of 99.91%. The results are promising for the use of colloidal nano silver solution on lining leather as antimicrobial coating.
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subjects Anti-Infective Agents - pharmacology
Antimicrobial agents
Bacteria - drug effects
Bacterial Load
Chemical Phenomena
Environmental Microbiology
Fungi - drug effects
Hydrogen-Ion Concentration
Leather & leather products
MICROBIOLOGY
Microscopy, Electron, Scanning
Nanomaterials
Nanostructures
Silver - pharmacology
Studies
Surface Properties
title Characterization and antimicrobial performance of nano silver coatings on leather materials
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