A highly sensitive fluorescent sensor for Zn2+ based on diarylethene with an imidazole unit

被引：25

作者：

Wang, Zhen ^{[1
]}

Cui, Shiqiang ^{[1
]}

Qiu, Shouyu ^{[1
]}

Zhang, Zhihui ^{[1
]}

Pu, Shouzhi ^{[1
]}

机构：

[1] Jiangxi Sci & Technol Normal Univ, Jiangxi Key Lab Organ Chem, Nanchang 330013, Jiangxi, Peoples R China

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2018年 / 205卷

关键词：

Photochromic; Diarylethene; Fluorescent sensor; Logic circuit; TURN-ON SENSOR; PHOTOCHROMIC DIARYLETHENE; VITAMIN-B-6; COFACTOR; MOLECULAR SWITCH; SELECTIVE RECOGNITION; ZINC IONS; CHEMOSENSOR; PROBE; AL3+; ZN(II);

D O I：

10.1016/j.saa.2018.07.014

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

A new sensitive sensor for Zn2+ based on diarylethene with an imidazole unit has been synthesized. Its photochromic and fluorescent behaviors have been systematically investigated by the stimulation of UV/vis lights and Zn2+ ion in THE solution. It displayed a dual-mode with a "turn on" fluorescence and color response to Zn2+. With the addition of Zn2+, the emission intensity enhanced 26-fold, accompanied by the fluorescent color changed from dark red to bright yellow. The 1:1 stoichiometry between the sensor and Zn2+ was verified by Job's plot and MS. The LOD for Zn2+ was determined to be 6.12 x 10(-9) mol L-1. Furthermore, a logic circuit was designed by using the fluorescence at 578 nm as output and the combinational stimuli of UV/vis and Zn2+/EDTA as inputs. (C) 2018 Elsevier B.V. All rights reserved.

引用

页码：21 / 28

页数：8

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