An “off-on” electrochemical luminescence biosensor with aggregation-induced emission for ultrasensitive detection of aflatoxin B1

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成果类型：

期刊论文

作者：

Li, Jingxian;Wang, Song;Yang, Hongfen;Li, Run;Cai, Ren;...

通讯作者：

Yang, Hongfen(yanghf88@gmail.com)

作者机构：

[Li, Jingxian; Li, Run; Wang, Song; Cai, Ren; Tan, Weihong] Hunan Univ, Coll Mat Sci & Engn, Coll Chem & Chem Engn,Mol Sci & Biomed Lab, Coll Biol,State Key Lab Chemo Biosensing & Chemome, Changsha 410082, 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.

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

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

[Tan, Weihong] Shanghai Jiao Tong Univ, Coll Chem & Chem Engn, Shanghai 200240, Peoples R China.

通讯机构：

[Hongfen Yang] H

[Run Li; Ren Cai] M

Hunan Key Laboratory of Typical Environmental Pollution and Health Hazards, School of Public Health, Hengyang Medical School, University of South China, Hengyang 421001, China<&wdkj&>Molecular Science and Biomedicine Laboratory, State Key Laboratory for Chemo/Bio-Sensing and Chemometrics, College of Material Science and Engineering, College of Chemistry and Chemical Engineering, College of Biology, Hunan University, Changsha 410082, China

语种：

英文

关键词：

Conjugated microporous polymer;Electrochemiluminescence;Aggregation-induced emission;Aflatoxin B1

期刊：

Sensors and Actuators B-Chemical

ISSN：

0925-4005

年：

2023

卷：

380

页码：

133407

DOI：

10.1016/j.snb.2023.133407

基金类别：

National Natural Science Foundation of China [22004032]; Hunan Provincial Natural Science Foundation of China [2021JJ20020]; Postgraduate Research Innovation Program of Hunan Province [CX20220417]

机构署名：

本校为其他机构

院系归属：

公共卫生学院

摘要：

This work describes a novel "off-on" biosensor for super-sensitive and selective detection of aflatoxin B1 (AFB1). In the biosensor, electrochemiluminescence (ECL) and aggregation-induced emission (AIE) work together to enhance ECL performance by a dibenzo-[b,d]thiophene sulfone-based conjugated microporous polymer, and hairpin DNA1 (H1) and ferrocene (Fc)-apt act as the switches for the "off-on" mode. In the absence of target AFB1, the ECL signal is inhibited because of the steric-hindrance effect, and the biosensor remains in the "off" state. In the presence of AFB1, ECL signal recovery is o...

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An “off-on” electrochemical luminescence biosensor with aggregation-induced emission for ultrasensitive detection of aflatoxin B1

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