Fig. 4From: Platinum–gold nanoraspberries as effective photosensitizer in anticancer photothermal therapyFTIR spectra of SW480 (a), SW620 (b) colon cancer cell lines: control (grey spectrum); cells cultured with the PtAu NRs (black spectrum); cells cultured with the PtAu NRs and irradiated by the 650 nm laser (orange spectrum); cells cultured with the PtAu NRs and irradiated by the 808 nm laser (red spectrum)Back to article page