Fig. 6

In vivo skin regeneration capacity of (BY + EGF)@MNs in a cutaneous wound model. a Optical photos of the skin wounds with different treatments for10 days. b Quantitative analysis of the healing area on day 10 (n = 5). c Quantitative analysis of epidermal thickness obtained from H&E staining on day 10 (n = 5). d H&E staining images in different groups on day 10. Scale bars are 5 mm in (a), 1 mm in (d, top), and 100 μm in (d, bottom)