Fig. 5From: Synthesis and In Vitro Performance of Polypyrrole-Coated Iron–Platinum Nanoparticles for Photothermal Therapy and Photoacoustic Imaging a UV-Vis-NIR spectra of different concentrations of FePt@PPy NPs. b The photothermal decay of FePt@PPy NPs with different concentrations. c The corresponding NIR thermographic images of irradiated samples. All solutions were irradiated with a 1-W/cm2 808-nm laser for 5 minBack to article page