Graphene Oxide: Intrinsic Peroxidase Catalytic Activity and Its Application to Glucose Detection

Carboxyl-modified graphene oxide (GO–COOH) possesses intrinsic peroxidase-like activity that can catalyze the reaction of peroxidase substrate 3,3,5,5-tetramethylbenzidine (TMB) in the presence of H2O2 to produce a blue color reaction. A simple, cheap, and highly sensitive and selective colorimetric method for glucose detection has been developed and will facilitate the utilization of GOCOOH intrinsic peroxidase activity in medical diagnostics and biotechnology. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not…