▎ 摘　　要

NOVELTY - Conductive and optical filter composition with adjustable pores comprises gelatin, polyvinyl alcohol, pH adjusting agent, conductive carbon material and solvent. USE - The conductive and optical composition is useful in biocompatible electrode for wearable electronic device i.e. sensing blood sugar, blood pressure, pulse, or exercise amount, record bioelectrical signals i.e. brain waves, event-related potentials, evoked potentials, myogenic potentials, and myocardial potentials and in anti-counterfeiting tag. ADVANTAGE - The conductive and optical composition: does not irritate skin; has good breathability; increased biocompatibility and mechanical strength; is easy to use, environmentally friendly and economical; has good deformation resistance; is non toxicity, and harmless to human body; has low antigenicity and excellent cell adhesion, spreadability, proliferation ability and high elasticity. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) biocompatible electrode formed by coating composition on plastic or fiber substrate; (2) wearable electronics comprising biocompatible electrodes; (3) anti-counterfeiting tag formed by coating composition of upper surface of the transparent film; and (4) manufacturing a biocompatible electrode comprising preparing pore-adjustable conductive and optical filter composition containing gelatin, polyvinyl alcohol, pH adjusting agent, conductive carbon material and solvent, adjusting hydrogen ion concentration of composition within range of pH = 2-10, and coating composition prepared in previous step on substrate.