Growing TiO2 nanotubes on graphene nanoplatelets and applying the nanonanocomposite as scaffold of electrochemical tyrosinase biosensor

- TiO2 nanotubes are grown on graphene surface using TiO2 nanoparticles as precursor.
- The composite was characterized by FT-IR, TEM, SEM, XRD and impedance.
- Tyrosinase (Tyr) biosensor was developed using the composite as immobilization material.
- Strong catalysis of Tyr to catechol was achieved on the composite biosensor.
- The Tyr biosensor shows superiority over other Tyr biosensors in analytical performance.