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. 2015 May 7;13:35. doi: 10.1186/s12951-015-0094-4

Figure 2.

Figure 2

NDs protect cultured cells from UVB damage. Experiment setting (A). Dose dependent (B, C) (UVI 6 for 10 min [68 mJ/cm2] at 1, 2, and 3 mg/cm2 density) and time-dependent (D, E) (UVI 6 for 5 and 10 min [34 and 68 mJ/cm2] at 2 mg/cm2 density) responses of nanomaterials in UVB protection of HaCaT (B, D) and MEF (C, E) cells were measured using the WST-1 assay. n = 6 (three experiments repeated twice). Groups without UVB exposure [UVB (−) control] was normalized to 100%. n = 6 (three experiments repeated twice); *P < 0.05, **P < 0.01, significantly better as compared with UVB (+) groups; # P < 0.05, ## P < 0.01, significantly worse as compared with Film + 100-nm NDs” groups. Data are mean ± SD. The 10-min groups in (D) and (E) are adoptive from 2 mg/cm2 groups in (B) and (C), respectively.