Fig. 2. Photothermal effect of OHH NPs . (A) Photothermal
heating curve of water, HMPB, Ofloxacin and OHH NPs. (B) Infrared
thermal images of different samples (0.1 mg/mL) irradiated with 808 nm
light (1 W/cm2, 10 minutes). (C) The heating curve of
OHH NPs under different power laser irradiation. (D) Temperature changes
of different concentrations of OHH solution irradiated by 808 nm laser.
(E) Photothermal effect of OHH NPs under 808 nm laser-on and then
laser-off. Plot of linear time data versus −ln(θ), which was obtained
from the cooling stage (F) Photostability of OHH NPs with 5 cycles.