Fig. 2.

A Temperature curves of IR-780, MPDA, and IR-780@MPDA at the same proportional concentrations under laser irradiation (808 nm laser, 1 W/cm², 300 s). H₂O was taken as a control. B Temperature curves of IR-780@MPDA at different irradiation powers (0, 0.2, 0.5, 1, and 2 W/cm²). C Temperature curves of IR-780@MPDA at different concentrations (12.5, 25, 50, 100, and 200 μg/mL). D Photostability of IR-780@MPDA over five cycles of 808 nm laser irradiation at 1 W/cm² for 300 s and cooling for 480 s. E SOSG fluorescence intensity (FI) of IR-780@MPDA after different times (1, 3, and 5 min) of irradiation (808 nm, 1 W/cm²). F SOSG FI of indicated groups at 525 nm under NIR laser irradiation