A polypyridyl-pyrene based off-on Cd2+ fluorescent sensor for aqueous phase analysis and living cell imaging

被引：24
|
作者：
Yang, Le-Le [1 ,2 ,3 ]
Liu, Xiu-Ming [1 ,2 ,3 ]
Liu, Kun [1 ,2 ,3 ]
Liu, Huan [1 ,2 ,3 ]
Zhao, Fang-Yao [1 ,2 ,3 ]
Ruan, Wen-Juan [1 ,2 ,3 ]
Li, Yue [1 ,2 ,3 ]
Chang, Ze [1 ,2 ,3 ]
Bu, Xian-He [1 ,2 ,3 ]
机构：
[1] Nankai Univ, Dept Chem, Tianjin 300071, Peoples R China
[2] Nankai Univ, Tianjin Key Lab Met & Mol Based Mat Chem, Tianjin 300071, Peoples R China
[3] Nankai Univ, Collaborat Innovat Ctr Chem Sci & Engn Tianjin, Tianjin 300071, Peoples R China
来源：
TALANTA | 2014年 / 128卷
基金：
中国博士后科学基金;
关键词：
Cd2+ion; Fluorescent sensor; Quadrapyridyl type receptor; Water toleration; Cell imaging; CADMIUM; MERCURY; IONS; CHEMOSENSOR; ZINC(II); ZN2+; LEAD; 8-HYDROXYQUINOLINE; SPECTROMETRY; CHEMSENSORS;
D O I：
10.1016/j.talanta.2014.04.046
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
By retaining the quadrapyridyl receptor of polypyridylhexaazatriphenylene (a Cd2+ sensor reported by us) and extending its chromophoric group with pyrene, a chemical sensor (1) was designed and synthesized in this work. This sensor exhibit selective off-on fluorescence response to Cd2+ over other metal ions, and the detection limit is as low as 0.02 mu M. The Cd2+ sensing of 1 has high water toleration and can be carried out in the media with the water content up to 70%. Additionally, 1 was successfully applied to the in vivo imaging of intracellular Cd2+ in living HaLa cells, and showed low cytotoxicity and cell membrane permeability in these experiments. These results suggest that 1 has potential application in the Cd2+ analysis of environmental and biological samples. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：278 / 283
页数：6
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