Fig. 1
Characterization of liposomes. a FE-TEM images of TRL, iTRL, and piTRL. (Scale bars: 200 nm). b TEM corresponding size distribution of each liposome. c UV-vis absorption of liposomes is shown. d Photothermal heating curves of different concentrations of piTRL, irradiated for 5 min with an 808-nm laser at a power density of 1 W/cm2. e The cumulative release of poly I:C from piTRL at 24, 37, 42, and 50 °C. f Schematic diagram of poly I:C release from piTRL under NIR-laser irradiation. g The concentration of released poly I:C from piTRL under NIR-laser irradiation at a power intensity of 1 W/cm2