Fig. 5. (A) Photothermal imaging of mice treated with 4-Ir NPs (100 μg mL⁻¹, 100 μL) under 635 nm laser irradiation at intensity 360 J cm⁻² for 10 min; (B) harvested tumors from various groups of mice after treatment; (C) temperature of tumors monitored by the infrared thermal camera in different groups upon laser irradiation; (D) tumor volume measurement for different groups of mice; (E) body weights for different groups of mice; (F) tumor weights of six groups, representing the total weight of four samples in each group.