Fig. 3
Cell viability of MCS exposed to ca. 4 nm core diameter Au NPs. Cell viability of MSCs following exposure of Au NPs. MSCs were exposed to various concentrations cNP of Au NPs at different incubation times (24–72 h). The cell viabilities were normalized to the viability of cells, which had not been exposed to NPs (control media). Results are presented as mean value ± SD from three independent experiments using cells from different donors