Figure 6.

a) Schematic illustration of phototherapy. Reproduced with permission.^{[ 106 ]} Copyright 2020, Elsevier B.V. b) Schematic diagram of cell death by PDT. Reproduced with permission.^{[ 111 ]} Copyright 2020, Elsevier B.V. c) Activatable photosensitization responds to H₂S. Reproduced with permission.^{[ 123 ]} Copyright 2018, American Chemical Society. d) Activatable photosensitization responds to pH change. Reproduced with permission.^{[ 124 ]} Copyright 2016, American Chemical Society. e) Schematic illustration of PTT in the treatment of atherosclerosis. Reproduced with permission.^{[ 125 ]} Copyright 2021, American Chemical Society. f) Schematic illustration of sequential photothermal/photodynamic ablation for activated macrophages. Reproduced with permission.^{[ 126 ]} Copyright 2021, American Chemical Society. g) Near‐infrared thermal imaging images of PBS, ICG, Fe₃O₄, and Fe/ICG@HA after irradiation with an 808 nm laser. Reproduced with permission.^{[ 127 ]} Copyright 2022, American Chemical Society. h) Small multifunctional nanoclusters and their capability of PTT. Reproduced with permission.^{[ 64 ]} Copyright 2009, American Chemical Society.