Figure 4: Effect of FLG and GOs on HaCaT cells plasma membrane integrity evaluated by PI uptake assay.
From: Differential cytotoxic effects of graphene and graphene oxide on skin keratinocytes

Comparison between the less (FLG) and most (GO3) oxidized GBMs after 24 h (A), 48 h (B) and 72 h (C) exposure. Comparison between similarly oxidized GBMs differing by average lateral dimension (GO1, GO2, GO3) after 24 h (D), 48 h (E) and 72 h (F) exposure. Data are the mean ± SE of 3 independent experiments performed in triplicate. Statistical differences: *p < 0.05; **p < 0.01; ***p < 0.001 (Two-way ANOVA and Bonferroni’s post test).