Combined spectral experiment and theoretical calculation to study the chemosensors of copper and their applications in anion bioimaging

被引：64
作者：
Yang, Yutao [1 ,2 ]
Huo, Fangjun [2 ]
Yin, Caixia [1 ]
Chu, Yueyin [3 ]
Chao, Jianbin [2 ]
Zhang, Yongbin [2 ]
Zhang, Jingjing [1 ]
Li, Sidian [1 ]
Lv, Haigang [1 ]
Zheng, Anmin [3 ]
Liu, Diansheng [2 ]
机构：
[1] Shanxi Univ, Key Lab Chem Biol & Mol Engn, Minist Educ, Inst Mol Sci, Taiyuan 030006, Peoples R China
[2] Shanxi Univ, Res Inst Appl Chem, Taiyuan 030006, Peoples R China
[3] Chinese Acad Sci, Wuhan Ctr Magnet Resonance, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan Inst Phys & Math, Wuhan 430071, Peoples R China
来源：
SENSORS AND ACTUATORS B-CHEMICAL | 2013年 / 177卷
基金：
山西省青年科学基金; 中国国家自然科学基金;
关键词：
Chemosensors; Copper; UV-visible and fluorescence spectroscopy; DFT; Anion bioimaging; ON FLUORESCENT SENSOR; VISUAL DETECTION; SELECTIVE DETECTION; CU-II; DERIVATIVES; IONS; RECOGNITION; PROBE; GOLD; PRION;
D O I：
10.1016/j.snb.2012.12.043
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Three salicylaldehyde derivatives, namely 5-nitrosalicylaldehyde fluorescein hydrazone (1), 5-diethylaminosalicylaldehyde fluorescein hydrazone (2), and di(5-diethylamino salicylaldehyde) hydrazide (3), were synthesized and characterized. Their ability to recognize copper ions was investigated by UV-visible and fluorescence spectroscopies, with 2 shown to be an optimal probe for effective detection of Cu2+. More importantly, to explore the optical properties of these probes, and their mechanism for recognition of Cu2+ ions, B3LYP/6-311+G(d,p) density functional calculations were used to investigate the molecular orbitals and electronic excitations of each probe. In addition, because the 2-Cu2+ complex exhibits anion-induced fluorescence enhancement, we illustrate its potential application to bioimaging. (c) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：1189 / 1197
页数：9
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