A Benzothiazole-Based Fluorescence Turn-on Sensor for Copper(II)

被引：17
作者：
Kim, Gyeongjin [1 ]
Choi, Donghwan [1 ]
Kim, Cheal [1 ]
机构：
[1] Seoul Natl Univ Sci & Tech SNUT, Dept Fine Chem, Seoul 01088, South Korea
来源：
JOURNAL OF FLUORESCENCE | 2021年 / 31卷 / 04期
基金：
新加坡国家研究基金会;
关键词：
Benzothiazole; Fluorescence chemosensor; Copper ion; Turn on; SELECTIVE DETECTION; AQUEOUS-SOLUTION; COLORIMETRIC CHEMOSENSOR; SEQUENTIAL DETECTION; CU2+ ION; PROBE; RECOGNITION; DERIVATIVES; CELLS;
D O I：
10.1007/s10895-021-02752-x
中图分类号：
Q5 [生物化学];
学科分类号：
071010 ; 081704 ;
摘要：
A new benzothiazole-based chemosensor BTN (1-((Z)-(((E)-3-methylbenzo[d]thiazol-2(3H)-ylidene)hydrazono)methyl)naphthalen-2-ol) was synthesized for the detection of Cu2+. BTN could detect Cu2+ with "off-on" fluorescent response from colorless to yellow irrespective of presence of other cations. Limit of detection for Cu2+ was determined to be 3.3 mu M. Binding ratio of BTN and Cu2+ turned out to be a 1:1 with the analysis of Job plot and ESI-MS. Sensing feature of Cu2+ by BTN was explained with theoretical calculations, which might be owing to internal charge transfer and chelation-enhanced fluorescence processes.
引用
收藏
页码：1203 / 1209
页数：7
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