Highly Sensitive Dansyl-Based Chemosensor for Detection of Cu2+ in Aqueous Solution and Zebrafish

被引：40
|
作者：
Chae, Ju Byeong [1 ]
Yun, Dongju [1 ]
Lee, Hangyul [1 ]
Lee, Hyojin [2 ]
Kim, Ki-Tae [2 ]
Kim, Cheal [1 ]
机构：
[1] Seoul Natl Univ Sci & Technol, Dept Fine Chem, Seoul 01186, South Korea
[2] Seoul Natl Univ Sci & Technol, Dept Environm Engn, Seoul 01186, South Korea
来源：
ACS OMEGA | 2019年 / 4卷 / 07期
基金：
新加坡国家研究基金会;
关键词：
SELECTIVE FLUORESCENCE CHEMOSENSOR; EFFECTIVE CORE POTENTIALS; COLORIMETRIC CHEMOSENSOR; MOLECULAR CALCULATIONS; RELAY RECOGNITION; SENSOR; PROBE; IONS; DIARYLETHENE; HG2+;
D O I：
10.1021/acsomega.9b00970
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A new dansyl-based chemosensor (2-(4-((5-(dimethylamino)naphthalen-1-yl)sulfonyl)piperazin-1-yl)-N-(quinolin-8-yl)acetamide) (DC) for detecting Cu2+ was synthesized and characterized. DC showed great selectivity to Cu2+ by a fluorescent "on-off" detection method. Job plot, ESI-mass spectroscopy, and H-1 NMR titration suggested a 1 to 1 binding mode between DC and Cu2+. The detection limit was determined to be 43 nM, which is greatly below the WHO guidelines. In addition, DC can be applied to real samples and zebrafish imaging. The fluorescence quenching mechanism was proposed as the enhancement of intramolecular charge transfer with calculations.
引用
收藏
页码：12537 / 12543
页数：7
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