Naturally occurring betaine grafted on cotton fabric for achieving antibacterial and anti-protein adsorption functions
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ORIGINAL RESEARCH
Naturally occurring betaine grafted on cotton fabric for achieving antibacterial and anti-protein adsorption functions Panpan Duan . Qingbo Xu . Xujun Zhang . Jianing Chen . Weishi Zheng . Lin Li . Jing Yang . Feiya Fu . Hongyan Diao . Xiangdong Liu
Received: 12 January 2020 / Accepted: 9 May 2020 Ó Springer Nature B.V. 2020
Abstract In the textile industry, the use of naturally occurring antibacterial products in simple one-pot finishing processes is recommended. In this study, we present a clean technology using betaine (Bet) as the finishing reagent for preparation antibacterial fabrics. The reactive carboxyl group of Bet binds to the cellulosic fibers of fabrics via esterification, while the quaternary ammonium moiety of this compound exerts the antibacterial effect. Analyses show that the antibacterial efficiencies of Bet-modified cotton fabrics against E. coli and S. aureus are as high as 99.0
Electronic supplementary material The online version of this article (https://doi.org/10.1007/s10570-020-03228-0) contains supplementary material, which is available to authorized users. P. Duan Q. Xu W. Zheng L. Li J. Yang F. Fu X. Liu (&) School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China e-mail: [email protected] X. Zhang J. Chen H. Diao (&) State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China e-mail: [email protected] F. Fu X. Liu Institute for Smart Fiber Materials, Zhejiang Sci-Tech University, Hangzhou 310018, China
and 99.3%, respectively. Furthermore, these fabrics are highly durable against washing, with antibacterial activities greater than 91.5% after 20 washing cycles, and they display an excellent anti-protein adsorption property. The modification process proposed herein does not compromise the original properties of the fabric, and according to cytotoxicity tests, the modified fabrics are safe to wear against human skin. Overall, the fabric treatment process designed in this study constitutes a novel approach to the development of green finishing technologies in the textile field. Keywords Natural betaine Antibacterial fabric Anti-protein adsorption Cotton fabric
Introduction Cotton is a very abundant natural polymeric material, which has a huge worldwide production more than 20 million tons every year. Cotton consists of nearly 99% cellulose, and the three hydroxyl groups on the pyranose rings of the cellulose backbone are energetically favorable for a variety of chemical reactions to impart a new functionality to cotton fabric. Textile is the main outlet of cotton because of its many desirable properties, which include low skin irritation, warmth, high breathability and good flexibility, offer excellent wearing comfort for the clothing that made of cotton
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