A Colorimetric and Fluorescent Chemosensor for the Selective Detection of Cu2+ and Zn2+ Ions

被引：31

作者：

Kim, Min Seon ^{[1
,2
]}

Jo, Tae Geun ^{[1
,2
]}

Ahn, Hye Mi ^{[1
,2
]}

Kim, Cheal ^{[1
,2
]}

机构：

[1] Seoul Natl Univ Sci & Technol, Dept Fine Chem, Seoul 139743, South Korea

[2] Seoul Natl Univ Sci & Technol, Dept Interdisciplinary Bio IT Mat, Seoul 139743, South Korea

来源：

JOURNAL OF FLUORESCENCE | 2017年 / 27卷 / 01期

基金：

新加坡国家研究基金会;

关键词：

Chemosensor; Colorimetric; Fluorescent; Copper ion; Zinc ion; 100-PERCENT AQUEOUS-SOLUTION; EFFECTIVE CORE POTENTIALS; TRANSITION-METAL IONS; ENDOGENOUS ZINC IONS; TURN-ON; MOLECULAR CALCULATIONS; EMISSION-SPECTROMETRY; FLUOROMETRIC SENSOR; LIVING CELLS; PROBE;

D O I：

10.1007/s10895-016-1964-3

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

A new bi-functional chemosensor 1 based on 3,5-dichlorosalicylaldehyde and 2-(methylthio)aniline has been synthesized. It can detect Cu2+ with a color change from pale yellow to dark yellow in aqueous solution. The selective mechanism of 1 for Cu2+ was proposed to be the enhancement of the intramolecular charge transfer (ICT) band, which was explained by theoretical calculations. The sensor 1 could be used to detect and quantify Cu2+ in water samples. In addition, the sensor 1 displayed "turn-on" fluorescence response only to Zn2+, based on an effect of chelation-enhanced fluorescence (CHEF). Therefore, 1 can serve as a 'single sensor for two different targets' with dual modes.

引用

页码：357 / 367

页数：11

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