An alternating electric field responsive biomedical composite is disclosedthatprovides capacitive coupling through the composite. The biomedical compositeincludes abinder material, a polar material that is substantially dispersed within thebinder material, andelectrically conductive particles within the binder material. The polarmaterial is responsiveto the presence of an alternating electric field, and the electricallyconductive particles are notof sufficient concentration to form a conductive network through the compositeunless anduntil the composite becomes overcharged.