Reaction-based conjugated polymer fluorescent probe for mercury(II): good sensing performance with "turn-on" signal output

被引：52

作者：

Ding, Jun ^{[1
]}

Li, Huiyang ^{[1
]}

Xie, Yujun ^{[1
]}

Peng, Qian ^{[2
]}

Li, Qianqian ^{[1
]}

Li, Zhen ^{[1
]}

机构：

[1] Wuhan Univ, Hubei Key Lab Organ & Polymer Optoelect Mat, Dept Chem, Wuhan 430072, Peoples R China

[2] Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, Key Lab Organ Solids, Beijing 100190, Peoples R China

来源：

POLYMER CHEMISTRY | 2017年 / 8卷 / 14期

基金：

美国国家科学基金会;

关键词：

NAKED-EYE DETECTION; SPECIATION ANALYSIS; WATER; SENSORS; FISH; HG2+;

D O I：

10.1039/c7py00035a

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Based on a Hg2+- promoted deprotection reaction of dithioacetal, the conjugated polymer PDT was designed. PDT exhibited significant fluorescence enhancement along with an apparent red-shift upon the addition of mercury ions. Due to the specific chemical reaction, the response was very fast with good selectivity towards Hg2+. Other metal ions, including K+, Na+, Li+, Ba2+, Mg2+, Pb2+, Ca2+, Mn2+, Fe2+, Co2+, Fe3+, Cu2+, Ni2+, Al3+, Cd2+, Cr3+, and Zn2+, had nearly no influence on the sensing process. Moreover, PDT showed high sensitivity with the detection limit of 1.0 x 10(-6) mol L-1 and 1 x 10(-5) mol L-1 in solution and as test strips, respectively, as a result of the molecular wire and signal amplification effects.

引用

页码：2221 / 2226

页数：6

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