Fig. 2From: Toxicity of nano- and ionic silver to embryonic stem cells: a comparative toxicogenomic studyDose response of AgNP and Ag+ exposure. Differentiating mESCs in adherent culture (a) or in EB state (b) were exposed to different concentrations of AgNPs and Ag+ for 24 h, and cell viability was measured by MTS assay. The data were normalized to the control (100%) and expressed as mean ± SD. *p < 0.05Back to article page