Abstract: Disclosed are a biofilm material, a method for preparing the same, use thereof, and an artificial heart valve. The method for preparating the biofilm material includes: step S100, providing a biofilm; step S200, applying a tensile force in an X direction to the biofilm, wherein the X direction aligns with a fiber direction of the biofilm; and step S300, preforming crosslinking treatment of the biofilm while it is under the tensile force to obtain the biofilm material. In the present disclosure, the tensile force in the same direction as the fiber direction is applied to the biofilm, so that the biofilm is maintained in a stretched and tensioned state, which effectively inhibit the thickening effect of the biofilm during the crosslinking process.

Abstract: Disclosed are a functionalized biological matrix material, a preparation method therefor and use thereof, which belong to the technical field of medical materials. In the present invention, by means of the hybridization of a biological matrix material with 3-sulfopropyl methacrylate, the cross-linking and functionalization of the biological matrix material are achieved at the same time. A specific method comprises modifying carbon-carbon double-bond structures such as allyl, methallyl in a biological matrix material, immersing the biological matrix material in an aqueous solution containing 3-sulfopropyl methacrylate, and finally performing cross-linking and functionalization on the biological matrix material by means of radical polymerization, and using the biological matrix material to prepare materials such as valves.