Conjugated Polyelectrolyte Based Colorimetric Array for the Discrimination of Primary Amino Acids

被引：2

作者：

An, Yuxiu ^{[1
,2
,3
]}

Xiao, Keren ^{[1
]}

Yao, Zhiyi ^{[1
,3
]}

Li, Chun ^{[3
]}

机构：

[1] China Agr Univ, Key Lab Safety Assessment Genetically Modified Or, Coll Food Sci & Nutr Engn, 17 Tsinghua East Rd, Beijing 100083, Peoples R China

[2] China Univ Geosci Beijing, Sch Engn & Technol, 29 Xueyuan Rd, Beijing 100083, Peoples R China

[3] Tsinghua Univ, Dept Chem, 30 Shuangqing Rd, Beijing 100084, Peoples R China

来源：

CHEMISTRYSELECT | 2020年 / 5卷 / 18期

基金：

中国国家自然科学基金;

关键词：

Conjugated Polyelectrolyte; Colorimetric Array; Discrimination; Amino Acids; Aggregation; WATER-SOLUBLE POLYTHIOPHENE; SUPRAMOLECULAR COMPLEXES; FLUORESCENT SENSOR; VISUAL DETECTION; PROGRESS;

D O I：

10.1002/slct.202000362

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report a colorimetric sensor based on the supramolecular complex between a conformation-sensitive cationic polythiophene derivative, poly(3-(4-methyl-3-thienyloxy)propyltrimethylammonium) (PMTPA) and 2-naphthalenesulfonate (NS). It could be applied to discern 19 primary amino acids by the wavelength of PMTPA/NS. The sensing performance and mechanism was investigated by spectroscopic studies such as absorption and emission spectra. This approach relies on the disassembly of PMTPA/NS aggregates induced by the amphiphilic isoindole derivatives of amino acids formed in situ. 100% confidence limits for this discrimination could be achieved by using linear discriminant analysis (LDA).

引用

页码：5400 / 5403

页数：4

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