Selective and "turn-off" fluorimetric detection of mercury(II) based on coumarinyldithiolane and coumarinyldithiane in aqueous solution

被引：27
作者：
Guo, Yuan [1 ,2 ]
An, Jing [1 ]
Tang, Haoyang [3 ]
Peng, Mengjiao [1 ]
Suzenet, Franck [2 ]
机构：
[1] NW Univ Xian, Coll Chem & Mat Sci, Minist Educ, Key Lab Synthet & Nat Funct Mol Chem, Xian 710127, Peoples R China
[2] Univ Orleans, Inst Chim Organ & Analyt, F-45067 Orleans 2, France
[3] Xian Univ Posts & Telecommun, Sch Automat, Xian 710121, Peoples R China
来源：
MATERIALS RESEARCH BULLETIN | 2015年 / 63卷
基金：
中国国家自然科学基金;
关键词：
Optical materials; Chemical synthesis; RATIOMETRIC FLUORESCENT-PROBE; INORGANIC MERCURY; HG2+; CHEMODOSIMETER; SENSOR; IONS; NANOPARTICLES; ACCUMULATION; TOXICITY; DESIGN;
D O I：
10.1016/j.materresbull.2014.12.015
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this work, five novel coumarin-based fluorescent probes for mercury ions were developed. The recognition of mercury ions was performed via the mercury(II)-promoted desulfurization of the probes and a reasonable reaction mechanism was proposed and verified by thin layer chromatography (TLC), H-1 nuclear magnetic resonance (H-1 NMR) and fluorescence intensity measurements. All the probes showed excellent optical properties and exclusively distinguish mercury ions from various metal ions in aqueous solutions at pH 7.4. The linear response of the fluorescence emission intensity for all the probes to the concentration of mercury ions was obtained over a wide range of 0.06-1.5 mu M (0.06-0.9 mu M for probe 3e). In addition, the biological toxicity and the confocal fluorescence images of probe 3a were also tested on MCF-7 cells. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：155 / 163
页数：9
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