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首页> 外文期刊>International Biodeterioration & Biodegradation >In vitro biological properties and characterization of nanosilver coated cotton fabrics - An application for antimicrobial textile finishing
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In vitro biological properties and characterization of nanosilver coated cotton fabrics - An application for antimicrobial textile finishing

机译：纳米银涂层棉织物的体外生物学特性和表征-抗菌纺织品整理的应用

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摘要

The aim of this study was to evaluate the antibacterial and antifungal activities of cotton fabrics coated with silver nanoparticles (AgNPs). Stable AgNPs synthesized using Aspergillus terreus were characterized using UV-Vis. spectrophotometer, HR-TEM, XRD, and EDX. The synthesized AgNPs were 8-20 nm in size. In agar based diffusion and parallel streak methods, AgNPs coated cotton fabrics exhibited broad spectrum antibacterial activity against all pathogens tested. Importantly, AgNPs coated fabrics provided excellent laundering durability with pronounced antibacterial activity even after 15 wash cycles. The extent of release of silver ions from AgNPs coated fabrics into artificial sweat was studied using four different formulations (AATCC, ISO, and EN standards) with a pH range of 4.0-8.0. The maximum release of silver ions (31.71 mg/kg) was observed at pH 43 (AATCC formulation) while the minimum level of release (12.27 mg/kg) occurred at pH 8.0 (ISO formulation). HR-SEM micrographs of cotton fabrics coated with AgNPs exhibited a rough surface and the presence of nanoparticles on the cotton surface was also observed. Thus, the results of the present study clearly suggest that AgNPs synthesized using a green chemical technology could be considered in the development of antimicrobial textile finishes. (C) 2015 Elsevier Ltd. All rights reserved.
机译：这项研究的目的是评估涂有银纳米颗粒（AgNPs）的棉织物的抗菌和抗真菌活性。使用紫外可见分光光度法（UV-Vis）表征使用曲霉属曲霉合成的稳定AgNPs。分光光度计，HR-TEM，XRD和EDX。合成的AgNP的尺寸为8-20nm。在琼脂基扩散和平行条纹方法中，涂有AgNPs的棉织物对所有测试的病原体均具有广谱抗菌活性。重要的是，即使经过15个洗涤周期，涂有AgNPs的织物仍具有出色的洗涤耐久性和显着的抗菌活性。使用pH范围为4.0-8.0的四种不同配方（AATCC，ISO和EN标准）研究了AgNPs涂层织物中银离子释放到人造汗液中的程度。在pH值43（AATCC配方）下观察到最大的银离子释放（31.71 mg / kg），而在pH 8.0（ISO配方）下出现最小释放水平（12.27 mg / kg）。涂有AgNPs的棉织物的HR-SEM显微照片显示出粗糙的表面，并且还观察到了棉表面上存在纳米颗粒。因此，本研究的结果清楚地表明，使用绿色化学技术合成的AgNPs可用于抗菌纺织品整理剂的开发。 （C）2015 Elsevier Ltd.保留所有权利。

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