▎ 摘　　要

NOVELTY - Preparing biocompatible flexible hybrid carbon-based physiological electrode involves preparing high molecular polymer solution with a mass fraction of 0.5-20 wt.% as skin layer spinning solution, preparing hybrid carbon-based spinning solution with a mass fraction of 0.2-10 wt.% as core layer spinning solution, where the high-molecular polymer is a polymer capable of being formed by wet spinning, the component of the hybrid carbon-based spinning solution includes matrix carbon-based material, conductive nanofiller and water, the matrix carbon-based material using graphene oxide, graphene and carbon nanotube. USE - Method for preparing biocompatible flexible hybrid carbon-based physiological electrode used for acquiring electrophysiological signal. ADVANTAGE - The method has continuous, controllable diameter and adjustable mechanical property. The prepared biocompatible flexible hybrid carbon-based physiological electrode has excellent biocompatibility, electrical properties and mechanical properties that can be highly adapted to soft tissue performance. DETAILED DESCRIPTION - Preparing biocompatible flexible hybrid carbon-based physiological electrode involves preparing high molecular polymer solution with a mass fraction of 0.5-20 wt.% as skin layer spinning solution, preparing hybrid carbon-based spinning solution with a mass fraction of 0.2-10 wt.% as core layer spinning solution, where the high-molecular polymer is a polymer capable of being formed by wet spinning, the component of the hybrid carbon-based spinning solution includes matrix carbon-based material, conductive nanofiller and water, the matrix carbon-based material using graphene oxide, graphene and carbon nanotube, the conductive nanofiller adopts one of conductive carbon black, Mxene and silver nanowires, and the mass ratio of the matrix carbon-based material to the conductive nanofiller is 0.1-1:0-0.9, extruding the skin layer spinning solution and the core layer spinning solution into a coagulating bath through a coaxial spinning nozzle, curing, forming the skin layer spinning solution and the core layer spinning solution in the coagulating bath to obtain primary hydrogel fiber, drying, winding, collecting the primary hydrogel fiber, and reducing the primary hydrogel fibers by a reducing agent to obtain the biocompatible flexible hybrid carbon-based physiological electrode. An INDEPENDENT CLAIM is included for a biocompatible flexible hybrid carbon-based physiological electrode is prepared by the preparation method.