Electrochemical Biosensing Interface Based on Carbon Dots-Fe₃O₄ Nanomaterial for the Determination of Escherichia coli O157:H7.

ABSTRACT: Escherichia coli (E. coli) O157:H7 can cause many food safety incidents, which seriously affect human health and economic development. Therefore, the sensitive, accurate, and rapid determination of E. coli O157:H7 is of great significance for preventing the outbreak and spread of foodborne diseases. In this study, a carbon dots-Fe₃O₄ nanomaterial (CDs-Fe₃O₄)-based sensitive electrochemical biosensor for E. coli O157:H7 detection was developed. The CDs have good electrical conductivity, and the surface of carbon dots contains abundant carboxyl groups, which can be used to immobilize probe DNA. Meanwhile, the CDs can be used as a reducing agent to prepare CDs-Fe₃O₄ nanomaterial. The Fe₃O<

SUBMITTER: Lin X 

PROVIDER: S-EPMC8640100 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature