Colorimtric and "turn-on" fluorescent for Hg2+ based on rhodamine-3,4-ethylenedioxythiophene derivative

被引：17

作者：

Kai, Yumei ^{[1
]}

Yang, Shouhai ^{[1
]}

Gao, Xiaoping ^{[1
]}

Hu, Youghong ^{[1
]}

机构：

[1] Nanjing Univ Technol, Coll Biotechnol & Pharmaceut Engn, Nanjing 210009, Peoples R China

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2014年 / 202卷

关键词：

Rhodamine B; Mercury; Chemosensor; Reversibility; Hela cells; RHODAMINE-BASED FLUORESCENT; LIVING CELLS; IONS; CHEMODOSIMETER; CHEMOSENSOR; SENSOR; FRET; HYDRAZONE; MERCURY; CU(II);

D O I：

10.1016/j.snb.2014.04.089

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

We designed a novel fluorescent chemosensor for Hg2+ imaging in living cells based on rhodamine hydrazone and 3,4-ethylenedioxythiophene (EDOT). The selective fluorescence response of 1 to Hg2+ is due to the Hg2+-promoted desulfurization of the thiocarbonyl moiety, leading to the ring-opening of rhodamine B moiety of 1. The titration results show a 2:1 complex formation between 1 and Hg2+. The reversibility of chemosensor 1 is verified through its spectral response toward Hg2+ and S2- titration experiments. Chemosensor 1 can be utilized as an inhibit logic gate at molecular level. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：252 / 256

页数：5

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