Figure 8.

Photodynamic and photothermal anticancer effect. U87 cells were treated with various concentrations of CPC on rGO and irradiated at two wavelengths (660 nm and 808 nm). After 24 h, live cells were stained with calcein and the cell viability was measured using fluorometry (A). U87 cells, either treated or untreated with rGO, PC/rGO, or CPC/rGO, were irradiated at 808 nm or two wavelengths. After 24 h, live cells were stained with calcein and the percentage of viable cells was measured using fluorometry (B) and observed by fluorescence microscopy (C). Results are reported as the mean±SD of three independent experiments. The scale bar indicates 100 μm. ^***P<0.005 (ANOVA and Student-Newman-Keuls test, n=3).