A novel ratiometric fluorescent sensor for Ag plus based on two fluorophores

被引：9

作者：

Cen, Ming Jun ^{[1
]}

Chang, Tao ^{[1
]}

Yin, Yao Bing ^{[1
]}

Li, Xiao Liang ^{[1
]}

He, Yong Wu ^{[1
]}

机构：

[1] Hebei Univ Engn, Coll Mat Sci & Engn, Handan 056038, Peoples R China

来源：

METHODS AND APPLICATIONS IN FLUORESCENCE | 2018年 / 6卷 / 03期

关键词：

fluorescence; sensor; Ag; ratiometric; SILVER ION; AQUEOUS-SOLUTION; METAL-IONS; LOGIC GATE; CHEMOSENSOR; PROBE; NANOPARTICLES; SELECTIVITY; COMPLEX; BODIPY;

D O I：

10.1088/2050-6120/aabcf1

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A novel ratiometric fluorescent probe BCB was reported for the first time for the sensitive and selective analysis of Ag+ based on two Boradiazaindacene (BODIPY) as both the reference fluorophore and recognition part. Upon the addition of Ag+ ions, a strong fluorescence emission at 570 nm from recognition BODIPY would be appeared, whereas the fluorescence of the other BODIPY at 535 nm would be a constant reference fluorescence signal. As a result, the ratio of fluorescence intensity (lambda 570/lambda 535) was changed from 0.16 to 1.0. And the selectivity of BCB towards Ag+ over other metal ion was excellent. Other metal ions, such as Cd2+, Cu2+, Fe3+, Hg2+, Mg2+, Ni2+, Pb2+ and Zn2+ showed negligible changes in the both absorption and fluorescence spectra of BCB.

引用

页数：7

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