Figure 2.

In vitro photothermal properties and theoretical calculations. a) Schematic diagram of photothermal heating of Cu/PMCS. b) Heating curves of under 808 nm NIR irradiation with power density of 0.7 W cm⁻² for 5 min, and c) Photothermal transition efficiencies of PMCS, Cu/PMCS‐1, Cu/PMCS‐2, and Cu/PMCS‐3 dispersed in PBS. Energy bands and density of states (DOS) of d) PMCS and i) Cu/PMCS. Dielectric constants of e) PMCS and h) Cu/PMCS. Thermal field maps of plasmons f) PMCS and g) Cu/PMCS. Absorption spectra at 808 nm of j) PMCS and k) Cu/PMCS; l) Heating curve under 808 nm NIR irradiation with power density of 1 W cm⁻² for 150 s plotted by simulation. (Cu/PMCS refers to Cu/PMCS‐2)