Preparation and antibacterial activity of quaternized chitosan with iodine

被引:28
作者
Tang, Yang [1 ]
Xie, Linlin [1 ]
Sai, Mingze [1 ]
Xu, Ningning [1 ]
Ding, Derun [1 ]
机构
[1] Shanghai Univ Engn Sci, Coll Chem & Chem Engn, Shanghai 201620, Peoples R China
来源
MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS | 2015年 / 48卷
关键词
Chitosan; Quatemization; Iodine; Antibacterial; Iodometric titration; POLYVINYLPYRROLIDONE-IODINE; COMPLEX; DERIVATIVES; DELIVERY; STARCH; CHITIN; SALT; ION;
D O I
10.1016/j.msec.2014.11.019
中图分类号
TB3 [工程材料学]; R318.08 [生物材料学];
学科分类号
0805 ; 080501 ; 080502 ;
摘要
Chitosan (CTS) is a natural polymer with active groups such as -NH2 which can be functionalized to introduce new positively charged N-atoms and protonated amino group for better use. In this study, to improve the stability of iodine, a novel complex (CTS-CTA-I-2) was prepared by mixing N-(2-hydroxy) propyl-3-trimethylammonium chitosan chloride (CTS-CFA) with iodine in ethanol solution. The CTS-CTA-I2 was characterized by Fourier transform infrared spectra (FTIR), Ultraviolet and visible (UV-vis) spectra and thermal gravimetric analysis (TG). Besides, the interaction of iodine with CTS-CTA was also studied. The mole ratio of CTS-CFA with iodine was measured by iodometric titration method and the max mole ratio of CTS-CFA with iodine was 1:133. The antimicrobial activity of CTS, CTS-CTA and CTS-CTS-I-2 complexes was investigated against Escherichia coli and Staphylococcus aureus and the antibacterial property of CTS-CFA-I-2 was superior to CTS-CFA. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码:1 / 4
页数:4
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