基于羧基柱[6]芳烃的咖啡因传感荧光指示剂置换测定法
Carboxylato-Pillar[6]arene-Based Fluorescent Indicator Displacement Assays for Caffeine Sensing.
作者信息
Duan Qunpeng, Xing Yibo, Guo Kainan
机构信息
School of Chemical and Printing-dyeing Engineering, Henan University of Engineering, Zhengzhou, China.
出版信息
Front Chem. 2021 Dec 21;9:816069. doi: 10.3389/fchem.2021.816069. eCollection 2021.
In the present work, we have developed a new indicator displacement system based on pillararene for anionic water-soluble carboxylato pillar [6] arene (WP6) and aromatic fluorescent dye safranine T (ST). A large fluorescence enhancement and colour change of ST were observed after complexation with electron-rich cavity in WP6 because of host-guest twisted intramolecular charge-transfer interactions. The constructed pillararene-indicator displacement system can be applied for caffeine selective detection in water.
在本工作中，我们基于柱芳烃开发了一种新的指示剂置换体系，该体系用于阴离子型水溶性羧基柱[6]芳烃（WP6）和芳香族荧光染料番红花红T（ST）。由于主客体扭曲的分子内电荷转移相互作用，ST与WP6中富电子空腔络合后观察到荧光大幅增强和颜色变化。构建的柱芳烃-指示剂置换体系可用于水中咖啡因的选择性检测。
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