Fig. 3.

a. Schematic illustration of preparation of PVP-PG. b. Schematic illustration of radiocatalystic effect of PVP-PG with X-ray. c. Fluorescence images of H₂O₂ in HeLa cells with different treatments. H₂O₂ was marked as red dots. (Scale bar: 50 μm). d. Schematic illustration of redox-reaction effect of PVP-PG. e. Relative GSH amount in tumor cells with different treatments. The tumor weights (f) and images (g) of tumor-bearing mice treated with different formulations after 25 days. P values: ∗P < 0.05, ∗∗P < 0.01, ∗∗∗P < 0.001. Black circle indicates the eliminated tumors. Cited and reproduced from Ref. [84].