Electrochemical co-reduction synthesis of graphene/nano-gold composites and its application to electrochemical glucose biosensor

- Graphene/nano-Au composite was synthesized by electrochemical co-reduction method in one step.
- Glucose oxidase achieves direct electrochemistry on the graphene/nano-Au composite film.
- The glucose biosensor shows a high sensitivity of 56.93 μA mM−1 cm−2 toward glucose.
- Glucose was detected with a wide linear range and low detection limit.