On-demand controlled bidirectional DNAzyme path for ultra-sensitive heavy metal ion detection

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成果类型：

期刊论文

作者：

Xu, Jing;Li, Yujin;Wang, Futing;Luo, Xinqi;Zhang, Wei;...

通讯作者：

Cai, R

作者机构：

[Xu, Jing; Li, Yujin; Luo, Xinqi] Xinyang Normal Univ, Coll Chem & Chem Engn, Xinyang 464000, Peoples R China.

[Lyu, Yifan; Li, Yujin; Wang, Futing; Cai, Ren; Tan, Weihong] Hunan Univ, Coll Mat Sci & Engn, Coll Chem & Chem Engn, Mol Sci & Biomed Lab,State Key Lab Chemobio Sensin, Changsha 410082, Hunan, Peoples R China.

[Tan, Weihong] Chinese Acad Sci, Univ Chinese Acad Sci, Zhejiang Canc Hosp, Hangzhou Inst Med,Canc Hosp, Hangzhou 310022, Zhejiang, Peoples R China.

[Tan, Weihong] Shanghai Jiao Tong Univ, Renji Hosp, Inst Mol Med, Coll Chem & Chem Engn,Sch Med, Shanghai 200240, Peoples R China.

[Yang, Hongfen] Univ South China, Sch Publ Hlth, Hengyang Med Sch, Hunan Key Lab Typ Environm Pollut & Hlth Hazards, Hengyang 421001, Peoples R China.

通讯机构：

[Cai, R ] H

Hunan Univ, Coll Mat Sci & Engn, Coll Chem & Chem Engn, Mol Sci & Biomed Lab,State Key Lab Chemobio Sensin, Changsha 410082, Hunan, Peoples R China.

语种：

英文

期刊：

CHEMICAL SCIENCE

ISSN：

2041-6520

年：

2024

DOI：

10.1039/d4sc04404e

基金类别：

Natural Science Foundation of Hunan Province [235200810056]; Joint Fund Project for Technology Research and Development Plan of Henan Technology [2024JJ5348, 2021JJ20020]; Hunan Provincial Natural Science Foundation of China [22004032]; National Natural Science Foundation of China; Dabie Mountain Laboratory, Nanhu Scholars Program for Young Scholars of XYNU

机构署名：

本校为其他机构

院系归属：

公共卫生学院

摘要：

A bidirectional self-powered biosensor is constructed for the quasi-simultaneous detection of Pb2+ and Hg2+ based on MoS2@CuS heterostructures as an accelerator and hybridization chain reaction (HCR) as a signal amplification strategy. MoS2@CuS heterostructures significantly facilitate electron transfer between glucose and bioelectrodes, thereby greatly improving the detection signal of self-powered biosensors. This novel biosensor employs the unique sequences of DNAzymes to isolate Pb2+ and Hg2+ by the cleavage effect and thymine (T)-Hg2+-thymine (T) structures, respectively. In the process, ...

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On-demand controlled bidirectional DNAzyme path for ultra-sensitive heavy metal ion detection

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