Fig. 3
From: Highly stable organic photothermal agent based on near-infrared-II fluorophores for tumor treatment
Cytotoxicity analysis of NIR998 NPs. a The viability of SKOV3 cells treated with NIR998 NPs in various concentrations, respectively. b The viability of SKOV3 cells after they were incubated with NIR998 NPs (20 μM) or PBS (pH = 7.4) for 2 h, and then irradiated under various light power, respectively. c Flow cytometry quantification of SKOV3 cells treated with PBS, NIR998 NPs (20 μM), light irradiation, NIR998 NPs plus light irradiation (808 nm, 0.5 W cm−2, 6 min), respectively