水杨醛
壳聚糖
席夫碱
生物传感器
水溶液
聚集诱导发射
化学
分子内力
组合化学
限制
化学工程
光化学
纳米技术
材料科学
高分子化学
有机化学
荧光
光学
工程类
物理
机械工程
作者
Lifeng Xu,Qingye Meng,Zhenqian Zhang,Shuangling Zhong,Yan Gao,Xuejun Cui
标识
DOI:10.1016/j.ijbiomac.2022.04.126
摘要
Aggregation-induced emission (AIE) active compounds are fascinated due to their unique properties of limiting intramolecular rotation, and they have been developed in the biomedical fields. In this work, AIE material based on the Schiff base compound of chitosan (Cs) and salicylaldehyde (SA) was designed and synthesized. Cs-SA emits weak light in dilute aqueous solution, and emits bright light in concentrated solution and solid, showing obvious AIE performance. In addition, Cs-SA can also be used as a biosensor to detect Fe3+, and Cu2+, it has good bioimaging behavior. In addition, it can also be used as biosensor to quantitatively detect gram-positive bacteria and gram-negative bacteria, Moreover, Cs-SA shows excellent broad spectrum antibacterial performance in inhibiting E. coli and S. aureus.
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