Fig. 6. H&E stain of major organs from different treatment groups: group one (i) injected with PBS, group two (ii) injected with SiO2@gold shell–Apt with NIR irradiation, group three (iii) injected with SiO2@Au@MnO2–DOX/Apt, and group four (iv) injected with SiO2@Au@MnO2–DOX/Apt with NIR irradiation. All scale bars are 50 μm.
