A Highly Sensitive and Selective Fluorescent Probe for Thiophenol Designed via a Twist-Blockage Strategy

Analytical Chemistry
Qi SunGuang-Fu Yang

Abstract

A benzoquinolizine coumarin-based fluorescent probe was developed for detecting thiophenols, demonstrating the superior fluorescence properties caused by the decay of the twisting effect of N,N-diethylamino group of coumarin. It discriminated thiophenols from various analytes including aliphatic thiols with good selectivity and displayed ∼700-fold fluorescence intensity enhancement and a remarkable limit of detection (4.5 nM). The new probe also can be applied to quantitative determine the concentrations of thiophenol in water samples and living cells.

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Citations

Feb 12, 2017·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Hyunsu KimJuyoung Yoon
Mar 13, 2019·Organic & Biomolecular Chemistry·Ismail IsmailZhen Xi
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Jul 18, 2019·Chemical Reviews·Duxia CaoWeiying Lin
Jun 21, 2018·Langmuir : the ACS Journal of Surfaces and Colloids·Sudhakar PagidiPakkirisamy Thilagar

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