文献类型：期刊文献

英文题名：Preparation and application performance of graft-quaternization double modified chitosan electrospun antibacterial nanofibers

作者：Jin, Enqi[1];Wu, Minjie[1];Wang, Shuangshuang[1];Qiao, Zhiyong[2];Li, Manli[1];Linghu, Wensheng[1]

机构：[1]Shaoxing Univ, Coll Text & Apparel, Key Lab Clean Dyeing & Finishing Technol Zhejiang, Huancheng West Rd 508, Shaoxing 312000, Peoples R China;[2]Changzhou Vocat Inst Text & Garment, Sch Text, Changzhou 213164, Peoples R China

年份：2022

卷号：31

外文期刊名：MATERIALS TODAY COMMUNICATIONS

收录：SCI-EXPANDED(收录号：WOS:000817902100004)、、EI(收录号：20222112156691)、Scopus(收录号：2-s2.0-85130537503)、WOS

基金：The work was supported financially by Technological Research Project for Public Welfare of Zhejiang Province of China (LGG18B070002; LGG21E030005; LGG22E030002) , Project of Key Laboratory of Clean Dyeing and Finishing Technology of Zhejiang Province of China (QJRZ1902) , and Postdoctoral Research Program of Zhejiang Province of China (276089) . Financial sponsors do not endorse the views expressed in this publication.

语种：英文

外文关键词：Electrospun Nanofiber; Antibacterial Property; Quaternized Chitosan-g-PDMAEMA

外文摘要：Inexpensive, biodegradable and antibacterial nanofibers were developed through graft-quaternization double modification of chitosan (CS) as a potential substitute for those from petroleum products. Chitin is available in large quantities at low price from fishery by-products, such as crab and prawn shells. However, native chitin and its derivative - CS have poor solubility in common spinning solvents, are difficult to be used as regenerated fibers, exhibit mediocre antibacterial property, and have limited medical application as functional fiber. In this research, CS-g-polydimethylaminoethyl methacrylate (PDMAEMA) and its quaternized product were prepared successively. Various nanofiber membranes were produced by electrospinning using the modified CS/PVA acetic acid blend spinning solutions. Effects of grafting ratio (GR) of DMAEMA and degree of quaternization (DQ) on major application performance of the blend nanofiber membranes, e.g. fiber fineness, tensile property, moisturepenetrability, and inhibition of E.coli and S.aureus, were evaluated systematically. When the GR and the DQ were 21.5% and 12.3% respectively, the quaternized CS-g-PDMAEMA/PVA blend nanofiber membrane possessed satisfied fiber fineness and smoothness, high tensile property and moisture-penetrability. In addition, the nanofiber thus produced had higher inhibition function to S.aureus than many commonly used antibacterial fibrous membranes.