this invention provides a more functionalized artificial blood vessel which can be organized by independently designing its inner and outer surfaces and endowing them with respectively different biocompatibilities , as well as a process for producing the same . the artificial blood vessel comprises a tubular support having a layer of photogelled cinnamic acid - bound chondroitin sulfate coated on the inner surface thereof and a layer of photogelled coumarin - bound gelatin coated on the outer surface thereof . the process for producing the above artificial blood vessel comprises coating a layer of coumarin - bound gelatin on the outer surface of a tubular support and a layer of cinnamic acid - bound chondroitin sulfate on the inner surface of the support and irradiating each of the layers with light .