A novel D-π-A triphenylamine-based turn-on colorimetric and ratiometric fluorescence probe for cyanide detection

被引：43

作者：

Li, Qingyun ^{[1
]}

Wang, Zhencao ^{[1
]}

Song, Wenwen ^{[1
]}

Ma, Huiling ^{[1
]}

Dong, Jiaying ^{[1
]}

Quan, Yun-Yun ^{[2
]}

Ye, Xiaoxia ^{[1
]}

Huang, Zu-Sheng ^{[1
]}

机构：

[1] Wenzhou Med Univ, Sch Pharmaceut Sci, Wenzhou 325035, Peoples R China

[2] Chinese Acad Sci, Wenzhou Inst Biomat & Engn, Wenzhou 325011, Peoples R China

来源：

DYES AND PIGMENTS | 2019年 / 161卷

基金：

中国国家自然科学基金;

关键词：

Chemosensor; D-pi-A; Cyanide; Nucleophilic addition; Cell imaging; SENSITIZED SOLAR-CELLS; AQUEOUS-MEDIA; ORGANIC-DYES; SENSOR; WATER; AGGREGATION; ENHANCEMENT; MOLECULES; MECHANISM; RECEPTOR;

D O I：

10.1016/j.dyepig.2018.09.074

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A novel colorimetric fluorescent chemosensor TP1 with a D-pi-A structure for the detection of (cyanide) CN- has been developed. TP1 is capable of showing high selectivity and sensitivity towards CN- over a wide range of other interfering anions. After reaction with CN-, TP1 shows a significant blue-shift of absorption peak from 514 to 437 nm, which induces color changes from amaranth to yellow. Non-fluorescent TP1 upon interaction with CN- exhibits a ca. 17-fold fluorescence enhancement at 551 nm, resulting in strong orange emission. The sensing mechanism of TP1 recognizes CN- which undergoes a nucleophilic addition reaction. Moreover, the detection limit of the probe TP1 towards CN- is 1.4 x 10(-8) M, which is far lower than the WHO guideline of 1.9 mu M cyanide for drinking water. In addition, the cell imaging experiments certify that TP1 can be successfully applied as a bioimaging agent for monitoring CN- in pheochromocytoma cell (PC12).

引用

页码：389 / 395

页数：7

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