Fig. 4: Photothermal efficiency and stability of THPG vesicles.

a Fluorescence spectra of THPGs in various THF/water solutions and 5% Triton X-100 detergent solution. b Solutions of PBS, 0.3 mg mL⁻¹ THPG micelles and 0.3 mg mL⁻¹ THPG vesicles irradiated with 635 nm laser (200 mW cm²) and imaged with a thermal camera. c Linear fitting curve of the cooling time of THPG vesicles as a function of negative logarithm of temperatures (τ_s is the time constant of the sample system). d Photothermal stability evaluation of THPG vesicles exposed under 635 nm laser (200 mW cm⁻²) in water.