To prepare hemostatic materials with excellent hemostatic performance,the gelatin is modified through amination,and then cross-linked with tannic acid and genipin as cross-linking agents,followed by freeze-drying to obtain an aminated gelatin sponge.This sponge has a rich porous structure and rapid water absorption capacity.It can also enhance the binding ability with blood cells through electrostatic interactions,exhibiting excellent hemostatic performance,thus providing a new method for the preparation of rapid hemostatic materials.
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