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. Author manuscript; available in PMC: 2013 Jul 16.
Published in final edited form as: Chem Res Toxicol. 2012 May 14;25(7):1402–1411. doi: 10.1021/tx200513t

Fig. 1. Cytotoxicity of Nano-Co and Nano-TiO2 on A549 cells.

Fig. 1

A549 cells were treated with different doses of Nano-Co or Nano-TiO2 for 24h, and cytotoxicity was determined by both SRB assay (A) and AlamarBlue™ assay (B). A549 cells without treatment were used as controls. Values are mean ± SE of six experiments. * Significant difference from the control, p < 0.05; # Significant difference from the same dose of Nano-TiO2-treated group, p < 0.05.