壳聚糖
苯并恶唑
荧光
苯并噻唑
苯并咪唑
傅里叶变换红外光谱
化学结构
紫外可见光谱
荧光光谱法
化学
材料科学
化学改性
核化学
组合化学
化学工程
高分子化学
有机化学
物理
量子力学
工程类
作者
Halina Kaczmarek,Agnieszka Tafelska-Kaczmarek,Katarzyna Roszek,Joanna Czarnecka,Beata Jędrzejewska,Katarzyna Zblewska
出处
期刊:Materials
[MDPI AG]
日期:2021-10-26
卷期号:14 (21): 6429-6429
被引量:3
摘要
Chitosan is a valuable, functional, and biodegradable polysaccharide that can be modified to expand its applications. This work aimed to obtain chitosan derivatives with fluorescent properties. Three heterocyclic aromatic dyes (based on benzimidazole, benzoxazole, and benzothiazole) were synthesized and used for the chemical modification of chitosan. Emission spectroscopy revealed the strong fluorescent properties of the obtained chitosan derivatives even at a low N-substitution degree of the dye. The effect of high-energy ultraviolet radiation (UV-C) on modified chitosan samples was studied in solution with UV-Vis spectroscopy and in the solid state with FTIR spectroscopy. Moreover, cytotoxicity towards three different cell types was evaluated to estimate the possibilities of biomedical applications of such fluorescent chitosan-based materials. It was found that the three new derivatives of chitosan were characterized by good resistance to UV-C, which suggests the possibility of using these materials in medicine and various industrial sectors.
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