A BODIPY-based turn-off fluorescent probe for mercury ion detection in solution and on test strips

被引：42

作者：

Chen, Hongjin ^{[1
]}

Li, Xiaowei ^{[1
]}

Gao, Peng ^{[1
]}

Pan, Yu ^{[1
]}

Liu, Jian ^{[1
]}

机构：

[1] Nanjing Forestry Univ, Coll Chem Engn, Jiangsu Coinnovat Ctr Efficient Proc & Utilizat F, Jiangsu Key Lab Biomass Based Green Fuels & Chem, Nanjing 210037, Peoples R China

来源：

JOURNAL OF MOLECULAR STRUCTURE | 2022年 / 1262卷

关键词：

BODIPY; Fluorescence sensor; Mercury ion detection; Test strips; HEAVY-METALS; REMOVAL; SINGLE; SOILS; HG2+;

D O I：

10.1016/j.molstruc.2022.133015

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this study, a new fluorescence sensor M1 consisting of 4,4-difluoro-4-bora-3a,4a-diazaindacene (BODIPY) and thiosemicarbazide moieties was designed for mercury ion detection. M1 exhibited intense green emission in both solution and solid state. Obvious fluorescence quenching of the solution of M1 in DMF/H2O was observed only in presence of Hg2+ among the metal ions (Hg2+, Li+, Co2+, Cr3+, Mg2+, K+, Mn2+, Al3+, Fe3+, Zn2+, Cu2+, Cd2+, Ag+, Pb2+, Ca2+, Ni2+, Ba2+). The present probe M1 was 1:1 complexed with mercury ion, with complexation constant of 2.98 x 10(4) M-1. The detection limit of the probe M1 was calculated to be as low as 4.9 x 10(-7) M. Moreover, the probe M1 achieved selective and sensitive sensing toward mercury ion on test strips, which guaranteed its potential application. (c) 2022 Elsevier B.V. All rights reserved.

引用

页数：6

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