Ultra-sensitive and label-free detection of Escherichia coli O157:H7 using graphene-based field effect transistor modified with heat-denatured casein

Microchemical Journal（2023）

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摘要

Schematic illustration of GFET biosensor detection for E. coli O157:H7. Graphene was selected as a sensing material, and anti-E. coli O157:H7 Abs were conjugated onto the surface of graphene through heat-denatured casein film serving as probe linker and protective layer.

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field effect transistor,casein,o157h7,ultra-sensitive,label-free,graphene-based,heat-denatured

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