Optical detection of mercury(II) in aqueous solutions by using conjugated polymers and label-free oligonucleotides

被引：322

作者：

Liu, Xingfen

Tang, Yanli

Wang, Lihua

Zhang, Juan

Song, Shiping

Fan, Chunhai ^{[1
]}

Wang, Shu

机构：

[1] Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China

[2] Chinese Acad Sci, Beijing Natl Lab Mol Sci, Key Lab Organ Sci, Inst Chem, Beijing 100080, Peoples R China

来源：

ADVANCED MATERIALS | 2007年 / 19卷 / 11期

关键词：

NUCLEIC-ACID PROBES; FLUORESCENT CHEMOSENSOR; MERCURIC ION; SENSOR; HG2+; DNA; CHEMODOSIMETER; SENSITIVITY; SELECTIVITY; FLUOROPHORE;

D O I：

10.1002/adma.200602578

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A conjugated-polymer-based "mix-and-detect" optical sensor for mercury ions is fabricated by using a water-soluble poly[3-(3'-N,N,N-triethylamino-1'-pro-pyloxy)-4-methyl-2,5-thiophene hydrochloride] (PMNT) and a label-free, mercury-specific oligonucleotide (MSO) probe. PMNT binds to the Hg2+-free MSO and the Hg2+-MSO complex in different ways, and exhibits distinguishable and specific optical responses to the target-induced conformation change.

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页码：1471 / +

页数：5

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