Fig. 5
From: Zinc-metal–organic frameworks with tunable UV diffuse-reflectance as sunscreens
Photoprotective effects on pig skin. A Representative digital images of pig skin after pre-protection and subsequent UV exposure. Fewer erythema was observed for ZIF-8 group, compared to no protection group. B Photographs of skin with H&E staining after pre-protection and subsequent UV irradiation. (Red arrows point to parakeratosis.) C γ-H2AX immunofluorescence images of skin sections after pre-protection and subsequent UV exposure. (Nucleus: blue; γ-H2AX: red; White arrows point to γ-H2AX+ cells.) D, E Quantitative analysis of (D) epidermal thickness and (E) γ-H2AX positive cells on pig skin with pre-protection and subsequent UV exposure. ZIF-8 inhibited epidermal hyperplasia and γ-H2AX formation