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. 2021 Sep 9;19:275. doi: 10.1186/s12951-021-01014-z

Fig. 8.

Fig. 8

Histomorphological evaluation of wound tissues on day 3 and 7 (a, b) Immunohistochemical staining for pro-inflammatory factors of IL-6 and cellular proliferation marker of Ki-67. (IL-6 positive cells, black arrow; Ki-67 positive cells, red arrow). c Immunofluorescent staining of CD31 and α-SMA. Scale bar is 100 μm (new vessels marked by the white arrow; red: CD31; green: α-SMA; blue: nucleus)