Fig. 3
a Photothermal heating curves of water, ICG, and FA-IHA NPs under 5 min 808 nm laser irradiation (1 W/cm2). b Temperature variations of ICG and FA-IHA NPs after continuous 5 min of irradiation with an 808 nm laser for 5 cycles. c The absorption change of FA-IHA NPs at 780 nm before and after irradiation with an 808 nm NIR laser for 5 cycles. d ICG and FA-IHA NPs fluorescence change over 30 days