Fig. 6
4OI@iEC-M/GelMA promotes diabetic wound healing in vivo. (A) The therapeutic strategy of diabetic wound model in vivo. (B, E) The macroscopic images of wounds and the corresponding wound area at different time points (**p < 0.01, *p < 0.05). (C) The H&E images showed the formation of the epidermis and dermis tissue in diabetic wounds on day 9 (scale bar: 500 μm). (D, F) The Masson staining images showed the collagen deposition level of diabetic wounds on day 9 (**p < 0.01, *p < 0.05, scale bar: 500 μm)