期刊
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
卷 105, 期 -, 页码 1563-1571出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ijbiomac.2017.06.119
关键词
C-6-Schiff base; Chitosan; Antibacterial activity; Cytotoxicity
资金
- Inner Mongolia Agricultural University Campus Outstanding Youth Fund [214203025]
- National Natural Science Foundation of China [21064004, 21462030]
- Inner Mongolia University research project [NJZY051]
C-6-Schiff bases derivatives of chitosan were synthesized for the first time. C-2-amino groups and C-3-hydroxy groups were firstly protected by CuSO4 center dot 5H(2)O, and the C-6-hydroxy was then transformed into aldehyde, which then reacted with anilines through nucleophilic addition to introduce the -C=N group at C-6-position in chitosan chain. Finally, C-6-Schiff bases derivatives of chitosan were got by the deprotection of C-2-NH2 with cation exchange resin. The structures and properties of the new synthesized products were characterized by Fourier transform infrared spectroscopy,C-13 NMR, SEM image, and elemental analysis. The antibacterial activities of derivatives were tested in the experiment, and the results showed that the prepared chitosan derivatives had significantly improved antibacterial activity toward Staphylococcus aureus and Escherichia coli. The Cytotoxicity test showed that the prepared chitosan derivatives had low Cytotoxicity, compared with chitosan and C-2-benzaldehyde Schiff bases of chitosan. This paper allowed a new method for the synthesis of Schiff bases of chitosan, which was enlightening. (C) 2017 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据