Abstract: A bionic collagen aqueous solution, and a preparation method therefor and a use method thereof. By adding simulated body fluid components, the ion components and ion strength of the collagen aqueous solution are regulated, the pH value is regulated, and a tissue microenvironment is simulated. By adding connecting molecules, the binding of collagen molecules to tissues is improved, and the biocompatibility of the collagen aqueous solution is enhanced. The concentration of the collagen aqueous solution is greater than 0.1 wt. % and less than or equal to 10 wt. %. The collagen aqueous solution is used to cover the surface of the skin in the form of a dressing, can also be applied to the body in an injected manner. The bionic collagen aqueous solution simulates some characteristics of pre-repaired tissue, has a good biocompatibility, and delays the degradation of collagen molecules during use, which is beneficial for tissue repair and regeneration.

Abstract: Disclosed in the present invention are a preparation method for and a use method of a collagen microfiber hemostatic material. Collagen microfibers are obtained by performing high-speed shearing on a solid collagen material, after the collagen microfibers are dispersed in an aqueous phase, a procoagulant active ingredient modifies the surfaces of the collagen microfibers by means of linking molecules; and a collagen microfiber hemostatic material is obtained by performing high-speed shearing again after freeze drying. The collagen microfiber material can be prepared simply and efficiently by means of high-speed shearing; the biological activity of the collagen material is maintained as much as possible; and the microfibers have a length range of 10-1000 ?m and high dispersibility, thus facilitating spray processing.

Abstract: The invention relates to the technical filed of tissue engineering and 3D printing, particularly relates to an artificial tissue progenitor and a method for preparing the same.

Abstract: The invention relates to the technical filed of tissue engineering and 3D printing, particularly relates to an artificial tissue progenitor and a method for preparing the same.

Abstract: The invention relates to the technical filed of tissue engineering and 3D printing, particularly relates to an artificial tissue progenitor and a method for preparing the same.