Fig. 4From: Gold nanoparticle clusters for the investigation of therapeutic efficiency against prostate cancer under near-infrared irradiationPhotothermal efficiency of each sample in four different conditions. Histogram (a) shows cell viability when using the samples immediately after fabrication. Histogram (b) cells cultured in PBS for 7 days. Cells were subjected to 808 nm wavelength NIR irradiation after being cultured in PBS, AuNP, AuNC, and AuNC@SiO2. All measurements were done in triplicateBack to article page