Figure 3.

(a) TEM image of TiS₂ nanosheets with scale bar 100 nm. IR thermal images (b) and photothermal heating curves (c) of pure water and TiS₂-PEG solutions at different concentrations varying from 0.06 mg/mL to 0.5 mg/mL under 808 nm laser irradiation at a power density of 0.8 W/cm². (d) IR thermal images of 4T1 tumor-bearing mice after intravenous injection of 200 μL of TiS₂-PEG solution (2 mg/mL) at a power density of 0.8 W/cm² for 5 min. (e) The relative tumor growth of 4T1 tumors and (f) the survival curves of different mice groups (control (saline), laser only, TiS₂-PEG with or without laser) were indicated with standard deviation (n = 5). Adapted with permission from [37].