Simple naphthalimide-based fluorescent sensor for highly sensitive and selective detection of Cd2+ and Cu2+ in aqueous solution and living cells

被引：83

作者：

Wang, Wei ^{[1
]}

Wen, Qian ^{[1
]}

Zhang, Yue ^{[1
]}

Fei, Xiaoliang ^{[1
]}

Li, Yaoxian ^{[1
]}

Yang, Qingbiao ^{[1
]}

Xu, Xiaoyi ^{[2
]}

机构：

[1] Jilin Univ, Dept Chem, Changchun 130021, Peoples R China

[2] Jilin Univ, Hosp 1, Ctr Canc, Changchun 130021, Peoples R China

来源：

DALTON TRANSACTIONS | 2013年 / 42卷 / 05期

基金：

中国国家自然科学基金;

关键词：

MOLECULAR SENSOR; CADMIUM; DERIVATIVES; CHEMOSENSORS; ABSORPTION; MECHANISMS; COUMARIN; CU(II); PROBE; ZINC;

D O I：

10.1039/c2dt32279j

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A novel naphthalimide-based fluorescent sensor bearing the N,N'-bis(salicylidene)diethylenetriamine receptor was developed, which exhibited dual signaling behaviors for Cd2+ and Cu2+, and was applicable to the environmental and biological milieus. Upon addition of Cd2+, the fluorescence intensity enhanced in a linear fashion with the maximum fluorescence intensity increase of about 4-fold. Moreover, with the sensor 1 and 1-Cd2+ complex, Cu2+ was easily recognized by marked fluorescence quenching. The selectivity and sensitivity of the sensor 1 for Cd2+ were satisfactory and achieving a detection limit at the nanomolar level. The living cell image experiments demonstrated the value of sensor 1 in fluorescent visualization of Cd2+ ions in biological systems.

引用

页码：1827 / 1833

页数：7

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