Electrochemical aptasensor for aflatoxin B1 based on smart host-guest recognition of ?-cyclodextrin polymer

By Wu, Shuang Shuang; Wei, Min; Wei, Wei; Liu, Yong; Liu, Songqin
Published in Biosensors and Bioelectronics 2019

Abstract

Developing a simple and reliable method for the detection of the highly concerning mycotoxin, aflatoxin B1 (AFB1), is of great importance to food safety monitoring. In this study, a simple electrochemical aptasensor was presented for the detection of AFB1 based on the host-guest recognition between ferrocene and ?-cyclodextrin (?-CD). Fc-labeled aptamer of AFB1 first hybridized with its complementary Fc-cDNA. Two ferrocene molecules were brought closely together and couldn

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