Biodegradable biopolymers, method for their preparation and functional materials constituted by these biopolymers

摘要: A biodegradable biopolymer material consists of silk fibroin from domesticated silkworm; wild a composite comprising silkworm and or either at least one secondary substance selected the group consisting cellulose, chitin, chitosan, chitosan derivatives, keratin wool polyvinyl alcohol. The may be prepared by, for instance, casting an aqueous solution on surface substrate then cast drying applied solution. is effectively used as, metal ion-adsorbing material, sustained release useful such as medicine, biological cell-growth water-absorbing material.