Fig. 5
From: Multifunctional fish gelatin hydrogel inverse opal films for wound healing
Wound closure process and H&E staining. a Representative photographs of the skin wounds treated with PBS solution (control), IOF, the IOF loaded with both CS and VEGF. b H&E staining of wounds after 9 days. c The statistical graph of the wound closure situation (n = 4). d Quantitative analysis of granulation tissue width and thickness (n = 4). Scale bars are 5 mm in a and 1 mm in b