Fig. 1
Decellularization of porcine skin and characterization of the treated material. A The top image shows natural pig skin, while the bottom image displays decellularized pig skin, which exhibits a milky white appearance. Additionally, the image on the right showcases freeze-dried and milled processed porcine exoskeletal matrix powder. B The left image depicts the porcine skin hydrogel precursor after undergoing pepsin digestion treatment for 24 h, while the right image displays the porcine skin hydrogel after pH adjustment. C Comparative pictures of porcine extracutaneous matrix before and after decellularisation under HE and DAPI staining; D Graph of changes in DNA content and collagen content of porcine extracutaneous matrix tissue before and after decellularisation. (ns: no significant; ****p < 0.0001)