▎ 摘　　要

NOVELTY - Preparation method of high-strength graphene oxide nanocomposite hydrogel brain electrode involves vacuumizing the ultrapure water to deoxygenate. Adding graphene oxide, stirring first and then ultrasonically disperse, adding inorganic nano lithium algae earth, stirring first and then ultrasonic to obtain uniform dispersion. Adding N,N dimethyl acrylamide monomer to the homogeneous dispersion, stirring in an ice-water bath, and deoxygenate after stirring evenly. Adding initiator and accelerator, stir evenly and remove bubbles ultrasonically to obtain a reaction liquid. Injecting the reaction liquid into the mold, close the mold and seal the mold. Opening the mold after curing. USE - Preparation method of high-strength graphene oxide nano composite hydrogel brain electrode for skin impedance sensing. ADVANTAGE - Preparation method of a high-strength graphene oxide nano-composite hydrogel brain electrode involves carrying out redox reaction on N, N-dimethylacrylamide under an anaerobic condition, adding graphene oxide and lithium magnesium diatomate particles to enhance synthesis is obtained by nano hydrogel, has good mechanical property, lower surface contact impedance and excellent brain signal acquisition effect, simultaneously has good storage stability and use comfort, is more convenient to use compared with the existing wet brain electrode, and is more comfortable compared with the existing dry metal electrode, the collection effect is better, is better satisfy the demand of production.