Conformation-induced ratiometric electrochemical aptasensor for the detection of aflatoxin B1 in urban wetland environments

Zhentong Zhu; Jiamin Fan; Xinzhong Zhang; Lei Zhang; Na Wang; Chaoqin Zeng; Shuhui Huo; Xiaowan Li; Zhilan Wang; Xiaoquan Lu

doi:10.1039/D5AN00608B

Conformation-induced ratiometric electrochemical aptasensor for the detection of aflatoxin B1 in urban wetland environments†

Zhentong Zhu,

^a Jiamin Fan,

^a Xinzhong Zhang,^a Lei Zhang,

^a Na Wang,

^a Chaoqin Zeng,^a Shuhui Huo,^a Xiaowan Li,

^a Zhilan Wang

^a and Xiaoquan Lu

*^a

Author affiliations

* Corresponding authors

^a Key Laboratory of Water Security and Water Environment Protection in Plateau Intersection (Ministry of Education), Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry & Chemical Engineering, Northwest Normal University, Lanzhou 730070, P. R. China
E-mail: luxq@nwnu.edu.cn

Abstract

Monitoring waterborne pathogens with high specificity and sensitivity is critical for public health and environmental safety. Herein, we developed a ratiometric electrochemical biosensing platform utilizing aptamer recognition-triggered, enzyme-free catalytic hairpin assembly-assisted signal amplification for the ultrasensitive detection of AFB1 in water bodies.

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Conformation-induced ratiometric electrochemical aptasensor for the detection of aflatoxin B1 in urban wetland environments†

Abstract

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Conformation-induced ratiometric electrochemical aptasensor for the detection of aflatoxin B1 in urban wetland environments

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