Figure 6.

(A) The corresponding IR thermal images of A-FP NPs solution (5.0 mg/mL) at different power density of 660 nm laser (0, 0.5, 1.0 and 1.5 W/cm²). (B) The corresponding IR thermal images of saline and different concentrations of A-FP NPs solution (0.5, 1.0, 2.5, 5.0 mg/mL) at stable power density of 660 nm laser (1.5 W/cm²). (C) and (D) were temperature variation curves of A-FP NPs solution. (E) The temperature variation curves of the A-FP NPs solution after five cycles of Irradiation at power density of 1.50 W/cm² to test the photothermal stability of A-FP NPs.

Abbreviations: IR, infrared; A-P NPs, AS1411-PLGA@PFP; A-FP NPs, AS1411-PLGA@FePc@PFP.