Flexible self-powered lactic acid sensor electrode and preparation method thereof

The invention discloses a flexible self-powered lactic acid sensor electrode and a preparation method thereof, the flexible self-powered lactic acid sensor electrode comprises a lactic acid sensor anode structure and a lactic acid sensor cathode structure, the lactic acid sensor anode structure comprises a graphene fiber, a PANI film grows on the surface of the graphene fiber, and the PANI film is modified with an Au nanosheet, a ZnO nanowire and lactate oxidase; the cathode structure of the lactic acid sensor comprises a graphene fiber, a PEDOT film grows on the surface of the graphene fiber, the surface of the PEDOT film is modified with Pt particles, the graphene fiber at the bottom layer of the lactic acid sensor has excellent conductivity, rapid transfer and transmission of charges can be ensured, more Lox can be fixed by external Au and ZnO, and the electrochemical performance of the sensor is improved. And the flexible electrode has excellent lactic acid sensor performance, and the developed flexible e