Fig. 12.

(a) Schematic illustration of the fabrication of p-MoS₂/n-rGO-MnO₂-PEG nanosheets. While the hybrid nanosheets generate ROS via electron-hole separation under 980 nm laser irradiation, the MnO₂ NPs trigger the decomposition of endogenous H₂O₂ into O₂, simultaneously enhancing the PDT effect. (b) Merged epifluorescence microscopy images of HeLa cells co-stained with fluorescein diacetate (green emission for live cells) and PI (red emission for dead cells) under 0.4 W/cm² laser irradiation for 5 min. Reprinted with permission from Ref. [262]. Copyright 2018, Chemical Science.