Figure 7.

(a) Schematic illustration of the therapeutic process of Cu₂S (CS)-PLA/PCL scaffold for cancer PTT and wound healing. (b) Representative SEM images of 0 wt% CS-PLA/PCL (A, B), 10 wt% CS-PLA/PCL (C, D), 20 wt% CS-PLA/PCL (E, F), 30 wt% CS-PLA/PCL (G, H), 40 wt% CS-PLA/PCL (I, J), and (K, L) 50 wt% CS-PLA/PCL membranes at different magnifications. Representative high-resolution SEM and TEM images of (M, N) 0 wt% CS- and (O, P) 30 wt% CS-PLA/PCL. (c) Cell viability of melanoma cells after different types of treatment. (d) Representative photographs of mice at day 0 and day 14 after various treatments. (e) Growth curve of skin cancer in different groups of mice after treatment. (f) Representative photographs of the wound beds showing angiogenesis (up) and immunofluorescence staining (down; green: CD31, blue: nuclei) in the wound healing region 12 days after treatment. (g) Representative skin wound photographs on day 0, 4, 8, and 12. Reproduced with permission [149]