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The biliverdin/silk fibroin (BVSF) hydrogel promoted the wound healing process in full-thickness skin defect rats. A) The schematic diagram of wound healing with BVSF hydrogel. B) The wound images and C) wound size change. D) H&E staining of the wounds (the wound margin was marked by the dashed line), Scale bar = 200 µm and E) the epidermal gap. ** represents P<0.01.
