Fig. 6. (a) Thermal images of PBS, utReS2, utReS2@RSV and utReS2@RSV–FA treated cells in 96-well plates after 5 min NIR irradiation, and (b) the corresponding temperature change curves. (c and d) Viability of the cells treated with RSV, utReS2, utReS2@RSV and utReS2@RSV–FA with or without 808 nm laser irradiation (5 min, 1 W cm−2). (e) The calcium AM/PI dual-staining images of cells after treatment by control (PBS), control + NIR, utReS2@RSV–FA and utReS2@RSV–FA + NIR, respectively.
