Fig. 7

Immunofluorescence analyses of diabetic wounds treated with hydrogels and PB nanozymes. (A) Photographs of CD31 (red) with DAPI (blue), α-SMA (red) with DAPI (blue), F4/80 (red) with DAPI (blue) and TNF-α (red) with DAPI (blue) in sections of diabetic wounds. (B) - (E) Quantification of immunohistochemistry analysis. *P < 0.05; **P < 0.01; ***P < 0.001; ****P < 0.0001. Data are presented as the means ± SDs (n = 3)