3D polypyrrole chitosan gelatin composite electric conduction material and preparation method thereof

The invention relates to a preparation method of a 3D polypyrrole chitosan gelatin composite electric conduction material. According to the preparation method, chitosan and pyrrole are used as raw materials, under the existence of a single electron reducing agent, namely, ferric trichloride, a polypyrrole- chitosan polymer is generated through reaction; then under the existence of a cross-linkingagent, namely, glutaraldehyde, the polypyrrole-chitosan polymer is cross-linked in pores of a gelatin sponge sheet, and thus the 3D polypyrrole chitosan gelatin composite electric conduction materialwith the porous structure is formed. The 3D polypyrrole chitosan gelatin composite electric conduction material prepared by adopting the method disclosed by the invention has relatively good mechanical strength, good biocompatibility, relatively high electric conduction property, relatively low impedance, and small voltage loss, and can accelerate transmission of Ca among myocardial cells. Anin-vitro evaluation experim