Improvement of the biocompatibility of solid surfaces.

(57) Various living body material which has a summary subject film-like living thing conformity agent and with which living thing conformity was strengthened, and offer of the process. Solution means They are the living body material of living thing conformity with the solid surface which has a molecule of the living thing conformity agent which combines with each other and forms living thing conformity films (an example, albumin, etc. ) (an example, a blood vessel graft tube, a dialysis tube, a contact lens, etc. ), The above-mentioned film has a chemical connection machine which combines the above-mentioned film with the above-mentioned solid surface, The 残 machine of one reactant machine of the above-mentioned reactant machines is the living body material of the above-mentioned living thing conformity which is a non-response at the stimulus which this chemical connection machine has 残 machine with an another reactant machine by which a covalent bond is carried out to the film of the photochemical reactivity machine by which a covalent bond is carried out to the above-mentioned solid surface, and a living thing conformity agent, and the reactant machine of another side answers. The process of this material.