Abstract: A hemostatic material as a high-performance medical material is described, which is capable of stopping bleeding in short time and is easy to handle and produce. The hemostatic material contains a nano-fiber that contains: a polymer, and a polypeptide having a peptide fragment represented by formula (1): -(Pro-Y-Gly)n-??(1) wherein Y represents hydroxyproline or proline, and n represents an integer ranging from 5 to 9000.

Abstract: A polymer electrolyte fiber having a high molecular weight is produced with ease by an electrospinning method. In an electrospinning method which comprises applying a voltage to a solution of a polymer electrolyte to allow a jet of the solution to spurt, forming a polymer fiber, the voltage applied to the solution of the polymer electrolyte is a voltage having the opposite polarity to the charge of molecular chains of the polymer electrolyte in the solution, and the voltage is applied to increase the viscosity of the solution to be higher than that of the solution before applying the voltage, allowing the solution to spurt.

Abstract: A hemostatic material as a high-performance medical material is described, which is capable of stopping bleeding in short time and is easy to handle and produce. The hemostatic material contains a nano-fiber that contains: a polymer, and a polypeptide having a peptide fragment represented by formula (1): -(Pro-Y-Gly)n- ??(1) wherein Y represents hydroxyproline or proline, and n represents an integer ranging from 5 to 9000.

Abstract: With respect to synthetic collagen that has so far been difficult to be nano-fiberized, a method for producing uniform and long fibrous nano-fibers containing a synthetic collagen is described. The nano-fibers contain a polypeptide having a peptide fragment represented by Formula (1): -(Pro-Y-Gly)n??(1), wherein Y represents hydroxyproline or proline, and n is an integar ranging from 5 to 9000. The producing method includes a step of preparing a spinning solution containing the polypeptide and a polymer, and a step of spinning with an electrospinning method using the spinning solution.

Abstract: A polymer electrolyte fiber having a high molecular weight is produced with ease by an electrospinning method. In an electrospinning method which comprises applying a voltage to a solution of a polymer electrolyte to allow a jet of the solution to spurt, forming a polymer fiber, the voltage applied to the solution of the polymer electrolyte is a voltage having the opposite polarity to the charge of molecular chains of the polymer electrolyte in the solution, and the voltage is applied to increase the viscosity of the solution to be higher than that of the solution before applying the voltage, allowing the solution to spurt.

Abstract: Disclosed is a method for production of a bio-derived scaffold for use in regenerative medicine, which has a bio-compatibility and biodegradability and can self-organize and grow without causing calcification. The method comprises the steps of partially fixing a biological soft tissue with glutaraldehyde by cross-linking and incubating the partially fixed tissue together with an elastase.

Abstract: A method for preparing a scaffold material for use in the prosthesis therapy is disclosed. The method comprises (a) lyophilizing a segment of native soft tissue of mammalian origin, heating the lyophilized tissue at a temperature of 100-200° C., and incubating the tissue with elastase to selectively remove elastin leaving the extracellular components mainly comprised of collagen.

Abstract: Disclosed is a method for production of a bio-derived scaffold for use in regenerative medicine, which has a bio-compatibility and biodegradability and can self-organize and grow without causing calcification. The method comprises the steps of partially fixing a biological soft tissue with glutaraldehyde by cross-linking and incubating the partially fixed tissue together with an elastase.

Abstract: A method for preparing a scaffold material for use in the prosthesis therapy is disclosed. The method comprises (a) lyophilizing a segment of native soft tissue of mammalian origin, heating the lyophilized tissue at a temperature of 100-200° C., and incubating the tissue with elastase to selectively remove elastin leaving the extracellular components mainly comprised of collagen.