A graphene-based Au(111) platform for electrochemical biosensing based catalytic recycling of products on gold nanoflowers

A novel, enzyme-free amperometric immunoassay of biomarkers with sensitive enhancement was designed by using gold nanoflower-labeled detection antibodies toward the catalytic reduction of p-nitrophenol and redox cycling of p-aminophenol on a graphene-based Au(111) platform.