An ultra-sensitive strategy for fluorescent detection of uranyl ions based on MoS2 nanosheet and entropy-driven amplification

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成果类型：

期刊论文

作者：

Sun, Lin;Chen, Lei;Zhu, Bingyu;Gong, Mi;Chen, Hong;...

通讯作者：

Le Li

作者机构：

[Tang, Ziwei; Liu, Jinquan; Chen, Hong; Li, Le; Chen, Lei; Zhen, Deshuai; Sun, Lin; Zhou, Xiayu; Gong, Mi; Zhu, Bingyu] Univ South China, Coll Publ Hlth, Hengyang Med Sch, Hengyang 421001, Hunan, Peoples R China.

[Tang, Ziwei; Liu, Jinquan; Chen, Hong; Li, Le; Chen, Lei; Zhen, Deshuai; Sun, Lin; Zhou, Xiayu; Gong, Mi; Zhu, Bingyu] Univ South China, Hengyang Key Lab Comprehens Prevent & Control Uran, Hengyang 421001, Hunan, Peoples R China.

[Tang, Ziwei; Liu, Jinquan; Chen, Hong; Li, Le; Chen, Lei; Zhen, Deshuai; Sun, Lin; Zhou, Xiayu; Gong, Mi; Zhu, Bingyu] Univ South China, Hunan Key Lab Typ Environm Pollut & Hlth Hazards, Hengyang 421001, Peoples R China.

通讯机构：

[Le Li] C

College of Public Health, Hengyang Medical School, University of South China, Hengyang 421001, Hunan, People’s Republic of China<&wdkj&>Hengyang Key Laboratory for Comprehensive Prevention and Control of Uranium Contamination and its Health Hazards, University of South China, Hengyang 421001, Hunan, People’s Republic of China<&wdkj&>Hunan Key Laboratory of Typical Environment Pollution and Health Hazards, University of South China, Hengyang 421001, People’s Republic of China

语种：

英文

关键词：

Uranyl ion;DNAzyme;Amplification;Sensor

期刊：

Microchemical Journal

ISSN：

0026-265X

年：

2022

卷：

183

页码：

108050

DOI：

10.1016/j.microc.2022.108050

基金类别：

CRediT authorship contribution statement Lin Sun: Conceptualization, Investigation, Methodology, Software, Writing – original draft. Lei Chen: Investigation. Bingyu Zhu: Investigation. Mi Gong: Investigation. Hong Chen: Investigation. Ziwei Tang: Investigation. Xiayu Zhou: Investigation. Jinquan Liu: Writing – review & editing. Deshuai Zhen: Writing – review & editing. Le Li: acquisition, Project administration, Writing – review & editing.

机构署名：

本校为第一机构

院系归属：

公共卫生学院

摘要：

An ultra-sensitive method for detection of UO22+ was developed based on MoS2 nanosheet and the principle of entropy-driven amplification. UO22+-specific DNAzyme was cleaved to release DNA fragments. The cyclic amplification reaction was initiated by the DNA fragment, and DNA with the fluorophore in the DNA complex is released. MoS2 has a high affinity for ssDNA, but a low affinity for dsDNA. The ssDNA with fluorophore binds to MoS2 based on this characteristic, and the fluorescence intensity is greatly reduced. The degree of fluorescence intensity change has a linear relationship with UO22+ in...

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An ultra-sensitive strategy for fluorescent detection of uranyl ions based on MoS2 nanosheet and entropy-driven amplification

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