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One-pot fabrication of durable antibacterial cotton fabric coated with silver nanoparticles via carboxymethyl chitosan as a binder and stabilizer

In this article, durable antimicrobial cotton fabric was prepared by a one-pot modification process using a colloidal solution of silver nanoparticles (Ag NPs) stabilized by carboxymethyl chitosan (CMC). Due to coordination bonds between the amine groups of CMC and the Ag NPs and the ester bonds present between the carboxyl groups of CMC and the hydroxyl groups of cellulose, the Ag NPs were tightly immobilized onto the cotton fiber surface. As a result, the Ag NPs that were adhered on the cotton fabrics have uniform dispersion and small size, ranging from 10?nm to 80?nm. This provides the cotton fabric with remarkable and durable antibacterial activity against both S. aureus and E. coli. After 50 laundering cycles, the bacterial reduction rate (BR) for the modified cotton fabric remained over 94 %. This method is simple, and it is particularly suitable for the industrial finishing process.

» Author: QingBo Xu, WeiShi Zheng, PanPan Duan, JiaNing Chen, YanYan Zhang, Fu FeiYa, HongYan Diao, XiangDong Liu

» Reference: 10.1016/j.carbpol.2018.09.089

» Publication Date: 03/10/2018

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This project has received funding from the European Union Seventh Framework Programme (FP7/2007-2013) under grant agreement n° [609149].

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