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
收藏
页码：1827 / 1833
页数：7
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