A ratiometric fluorescent chemosensor for Zn2+ in aqueous solution through an ESIPT coupled AIE process

被引：52

作者：

Qin, Jing-can ^{[1
]}

Wang, Bao-dui ^{[1
]}

Yang, Zheng-yin ^{[1
]}

Yu, Kai-chao ^{[2
]}

机构：

[1] Lanzhou Univ, Coll Chem & Chem Engn, State Key Lab Appl Organ Chem, Lanzhou 730000, Peoples R China

[2] Huazhong Univ Sci & Technol, Sch Chem & Chem Engn, Hubei Key Lab Bioinorgan Chem & Mat Med, Wuhan 430074, Peoples R China

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2016年 / 224卷

基金：

中国国家自然科学基金;

关键词：

Fluorescent sensor; Bis-Schiff base; Zn2+; Ratiometric; ESIPT/AIE; AGGREGATION-INDUCED EMISSION; TURN-ON; ALZHEIMERS-DISEASE; FACILE SYNTHESIS; SCHIFF-BASE; ZINC; SENSOR; PROBE; RECOGNITION; HG2+;

D O I：

10.1016/j.snb.2015.10.110

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

In this study, an efficient chemosensor (HL) has been designed and synthesized based on bis-Schiff base. The sensor could detect Zn2+ ions in a ratiometric way, which might be mainly due to an ESIPT coupled AIE process. In the absence of Zn2+, the sensor displays fluorescence emission at 500 nm, on addition of Zn2+ to an aqueous solution of HL, the sensor shows significant fluorescence enhancement at 457 nm. More importantly, the detection limit for Zn2+ can reach at 10(-7) M level. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：892 / 898

页数：7

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