Figure 8

Photothermal response of the NAu-rGO nanocomposite to NIR exposure. (a) Temperature increase of medium containing GO, NAuNPs, and NAu-rGO nanocomposite. MTT assay for quantifying the percent survival of MCF7 breast cancer cells after photothermal therapy for 5 min with 10 μg/mL concentrations of GO, NAuNPs, and NAu-rGO nanocomposite for (b) 2 h and (c) 24 h post-treatment for different exposure times.