Thiol-suppressed I-2-etching of AuNRs: acetylcholinesterase-mediated colorimetric detection of organophosphorus pesticides

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成果类型：

期刊论文

作者：

Qing, Zhihe*;Li, Yacheng;Li, Younan;Luo, Guoyan;Hu, Jinlei;...

通讯作者：

Qing, Zhihe;Yang, Ronghua

作者机构：

[Li, Yacheng; Li, Younan; Luo, Guoyan; Zou, Zhen; Lei, Yanli; Yang, Ronghua; Hu, Jinlei; Qing, Zhihe] Changsha Univ Sci & Technol, Sch Chem & Food Engn, Hunan Prov Engn Res Ctr Food Proc Aquat Biot Reso, Hunan Prov Key Lab Cytochem, Changsha 410114, Peoples R China.

[Qing, Zhihe; Liu, Juewen] Univ Waterloo, Waterloo Inst Nanotechnol, Dept Chem, Waterloo, ON N2L 3G1, Canada.

[Yang, Ronghua] Hunan Normal Univ, Coll Chem & Chem Engn, Lab Chem Biol & Tradit Chinese Med Res, Minist Educ, Changsha 410081, Peoples R China.

通讯机构：

[Qing, ZH; Yang, RH] C

[Qing, Zhihe] U

[Yang, Ronghua] H

Changsha Univ Sci & Technol, Sch Chem & Food Engn, Hunan Prov Engn Res Ctr Food Proc Aquat Biot Reso, Hunan Prov Key Lab Cytochem, Changsha 410114, Peoples R China.

Univ Waterloo, Waterloo Inst Nanotechnol, Dept Chem, Waterloo, ON N2L 3G1, Canada.

语种：

英文

关键词：

Gold nanorods;Iodine etching;Colorimetric assay;Organophosphorus pesticides;Triazophos

期刊：

Microchimica Acta

ISSN：

0026-3672

年：

2020

卷：

187

期：

页码：

497

DOI：

10.1007/s00604-020-04486-2

基金类别：

National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [2017YFC1600306, 21735001, 21705010]; Natural Science Foundation of Hunan ProvinceNatural Science Foundation of Hunan Province [2019JJ30025]

机构署名：

本校为第一且通讯机构

院系归属：

化学与生物工程学院

摘要：

For the first time it isdemonstrated that sulfhydryl compounds can suppress longitudinal etching of gold nanorods via consuming oxidizers, which provides a new signaling mechanism for colorimetric sensing. As a proof of concept, a colorimetric assay is developed for detecting organophosphorus pesticides, which are most widely used in modern agriculture to improve food production but with high toxicity to animals and the ecological environment. Triazophos was selected as a model organophosphorus pesticide. In the absence of triazophos, the activ...

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Thiol-suppressed I-2-etching of AuNRs: acetylcholinesterase-mediated colorimetric detection of organophosphorus pesticides

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