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Photothermal conversion of all testing samples (a) Temperature profile and (b) IR thermal images of different samples under 808 nm laser irradiation (1.0 W) from 0 to 3 min. (c) Temperature profile of CS/RB-AgNPs/GO-1.5 irradiated by laser with different powers. (d) Photothermal conversion stability of CS/RB-AgNPs/GO-1.5 irradiated by 808 nm laser (power: 1.0, 1.4, and 2.0 W). The sample was irradiated for 3 min and then cooled down to 23 °C with three repeating cycles.
