▎ 摘　　要

NOVELTY - Preparing graphene-xanthan gum three-dimensional porous spinal cord injury repair support involves adding reduced graphene oxide to deionized water, stirring for 1 hour, and then placing it in an ultrasonic cleaner for ultrasonic treatment for 1 hours to form a uniform dispersion solution, adding xanthan gelling agent and reduced graphene dioxide dispersion to de-ionized aqueous water, and stirring for one hour until the xanter gum is completely dissolved, preparing an aluminum trichloride solution with a mass concentration of 10-20 g/l, placing the prepared graphene-Xantergelling agent solution in a polytetrafluoroethylene reaction mold, and placing it into the aluminum tetrachelate solution for 24 hours, washing the obtained hydrogel by a large amount of deionizing water and soaking for 72 hours. USE - Preparation method of graphene-xanthanthan gum three-dimensional bracket for repairing spinal cord injury. Uses include but are not limited to surgery, drug treatment, cell transplantation and stent implantation. ADVANTAGE - The method enables to prepare graphene-xanthan gum three-dimensional porous bracket, which has good biocompatibility, mechanical performance and conductivity matched with spinal cord tissue, and three- dimensional porous internal structure suitable for cell growth, and has good biological compatibility and excellent conductivity. DETAILED DESCRIPTION - Preparing graphene-xanthan gum three-dimensional porous spinal cord injury repair support involves adding reduced graphene oxide to deionized water, stirring for 1 hour, and then placing it in an ultrasonic cleaner for ultrasonic treatment for 1 hours to form a uniform dispersion solution, adding xanthan gelling agent and reduced graphene dioxide dispersion to de-ionized aqueous water, and stirring for one hour until the xanter gum is completely dissolved, preparing an aluminum trichloride solution with a mass concentration of 10-20 g/l, placing the prepared graphene-Xantergelling agent solution in a polytetrafluoroethylene reaction mold, and placing it into the aluminum tetrachelate solution for 24 hours, washing the obtained hydrogel by a large amount of deionizing water and soaking for 72 hours, removing the unreacted aluminium ion, freezing in the refrigerator at minus 70℃and drying by using a freeze drier, finally obtaining the graphene-xanthan gum three-dimensional porous spinal cord repairing bracket.