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Ecofriendly development of electrospun antibacterial membranes loaded with silver nanoparticles
Journal of Industrial Textiles ( IF 3.2 ) Pub Date : 2021-04-22 , DOI: 10.1177/15280837211012590
Muhammad Irfan 1 , Zia Uddin 1 , Faheem Ahmad 1 , Abher Rasheed 1 , Muhammad Bilal Qadir 1 , Sheraz Ahmad 1 , Yakup Aykut 2 , Ahsan Nazir 1
Affiliation  

Functional polymeric membranes with antibacterial properties have gained significant importance in many applications. Silver NPs offer advantage over other materials for their effective antibacterial properties and being safer for humans at low concentrations. The synthesis of silver NPs may not always be environmental friendly and their incorporation in the polymer membranes is usually a multistep process. In this study, PVDF/PVP/AgNPs electrospun membranes were developed in a single step process where silver NPs were synthesized using reducing and stabilizing properties of PVP. The UV-vis spectroscopy confirmed the synthesis of silver NPs in PVP solution by sharp absorption peak at 398 nm. The membranes were loaded with various concentrations of silver NPs (1, 1.5, 2 and 2.5 wt%). The scanning electron microscopy of the developed membranes showed nano fibers of uniform diameter at optimized electrospinning conditions. FTIR spectroscopy also confirmed the successful development of polymeric composite (PVDF/PVP/AgNPs) membranes. The composite membranes demonstrated effective antibacterial properties against Staphylococcus aureus in disk diffusion test. The size of the inhibition halo increased with the concentration of the silver NPs in electrospun membranes. The findings of this study will be helpful in the simple and environmentally friendly development of antibacterial membranes for applications such as air and water filtration.



中文翻译:

载银纳米颗粒的静电纺丝抗菌膜的环保开发

具有抗菌特性的功能性聚合物膜在许多应用中已变得非常重要。银NP由于其有效的抗菌特性以及在低浓度下对人类更安全而提供了优于其他材料的优势。银NP的合成可能并不总是环保的,它们掺入聚合物膜中通常是一个多步骤过程。在这项研究中,PVDF / PVP / AgNPs电纺膜是通过一步法开发的,其中使用还原和稳定PVP的特性合成了银NPs。紫外可见光谱通过在398 nm处的吸收峰确认了PVP溶液中银NP的合成。膜上装有各种浓度的银NP(1、5%,2和2.5 wt%)。显影膜的扫描电子显微镜显示在优化的电纺丝条件下直径均匀的纳米纤维。FTIR光谱也证实了聚合物复合膜(PVDF / PVP / AgNPs)的成功开发。复合膜对细菌具有有效的抗菌性能金黄色葡萄球菌在椎间盘扩散试验中。抑制晕的大小随电纺膜中银NP浓度的增加而增加。这项研究的结果将有助于简单,环保地开发用于空气和水过滤等应用的抗菌膜。

更新日期:2021-04-23
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