Fig. 9

Macroscopic appearance of cutaneous wounds treated with PBS, Exos, Exo + NPs or Exo + NPs + MAG. a Gross view of wounds treated with PBS, Exos, Exo + NPs, or Exo + NPs + MAG after 0, 1, 3, and 5 weeks. b Quantitative analysis of wound closure at different time points post-wounding. *P < 0.05. After 24 h, c iron ion staining showed iron deposition (blue) in cutaneous wound tissue. Scale bar = 50 µm