Scheme 1. ECMMA, aka EM, and Cu-EGCG Capsules Were Combined to Prepare E/C Bioink, and Then the E/C Dermal Scaffold Was Made by Extruded Bioprinting.

In the full-thickness skin defect model of diabetic rats, the E/C dermal scaffold combined with STSG transplantation can promote dermal regeneration and angiogenesis and promote macrophage polarization to the M2 anti-inflammatory phenotype.