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AssigneeNational Institude of Agrobiological Sciences
InventorsMasuhiro Tsukada, Takayuki Arai
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A biodegradable biopolymer material consists of silk fibroin from domesticated silkworm; silk fibroin from wild silkworm; a composite material comprising silk fibroin from domesticated silkworm and silk fibroin from wild silkworm; or a composite material comprising either silk fibroin from domesticated silkworm or silk fibroin from wild silkworm and at least one secondary substance selected from the group consisting of cellulose, chitin, chitosan, chitosan derivatives, keratin from wool and polyvinyl alcohol. The material may be prepared by, for instance, casting an aqueous solution of domesticated silkworm silk fibroin on the surface of a substrate and then cast drying the applied solution. The biodegradable biopolymer material is effectively used as, for instance, a metal ion-adsorbing material, a sustained release substrate for a useful substance such as a medicine, a biological cell-growth substrate and a biodegradable water-absorbing material.
A biodegradable biopolymer material consisting of a composite film-like biodegradable material obtained from a mixed solution of:
A metal ion-adsorbing material comprising a biodegradable biopolymer material, which comprises a biodegradable biopolymer material characterized in that it consists of silk fibroin from wild silkworm;
A sustained release carrier for a useful substance comprising a biodegradable biopolymer material, which comprises a biodegradable biopolymer material characterized in that it consists of silk fibroin from wild silkworm;
A substrate for growth of biological cells comprising a composite material comprising silk fibroin from wild silkworm and at least one secondary substance selected from the group consisting of cellulose, chitin, chitosan, chitosan derivatives, keratin from wool and polyvinyl alcohol, wherein the substrate is used for the growth of biological cells.
A biodegradable water-absorbing biopolymer material comprising a composite film-like biodegradable material obtained from a composition consisting essentially of a mixed solution of:
Dependencies are inferred from the claim text.