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
收藏
页码：2221 / 2226
页数：6
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