A small-molecule and resumable two-photon fluorescent probe for Zn2+ based on a coumarin Schiff-base

被引：68
|
作者：
Qin, Jing-can [1 ]
Fan, Long [1 ]
Yang, Zheng-yin [1 ]
机构：
[1] Lanzhou Univ, State Key Lab Appl Organ Chem, Coll Chem & Chem Engn, Lanzhou 730000, Peoples R China
来源：
SENSORS AND ACTUATORS B-CHEMICAL | 2016年 / 228卷
基金：
中国国家自然科学基金;
关键词：
Fluorescent sensor; Two-photon; Zn2+; -C=N isomerization/photo-induced electron transfer; Reversibility; TURN-ON SENSORS; CHEMODOSIMETRIC PROBE; SUPEROXIDE ANION; LIVE CELLS; ZINC; CADMIUM; IONS; BIOCHEMISTRY; AGGREGATION; HOMEOSTASIS;
D O I：
10.1016/j.snb.2016.01.031
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
In this study, a simple one-photon and two-photon probe, 7-(4'-(diethylamino)-2'hydroxybenzylideneimino)-4-methyl coumarin, for Zn2+ is designed and synthesized. The sensor shows high selectivity towards Zn2+ ions with significant fluorescence intensity enhanced at 500 nm, which might be attributed to the formation of 2:1 stoichiometric L-Zn complex resulting in the restricted C=N isomerization and the inhibited photo-induced electron transfer. More importantly, the reversibility of the recognition process of HL is performed by adding a Zn2+ bonding agent Na(2)EDTA. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：156 / 161
页数：6
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