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Figure 6 | Particle and Fibre Toxicology

Figure 6

From: Internalization and cytotoxicity of graphene oxide and carboxyl graphene nanoplatelets in the human hepatocellular carcinoma cell line Hep G2

Figure 6

Mitochondrial membrane potential upon exposure to GO and CXYG. Hep G2 cells were exposed to increasing concentrations of GO (grey bars) or CXYG (dark grey bars) for 72 h. GO and CXYG suspensions were prepared by diluting aqueous stock suspensions in medium supplemented with 10% FBS. The vehicle control (VC) consisted of 10% (v/v) Milli-Q water in medium. Cells incubated with only medium served as negative control (NC) (black bars). FCCP (20 Î¼M, 10 min) was used as positive control (PC) (white bar). Bars represent the mean and standard error of the mean (SEM) of three independent repetitions. Statistically significant differences with respect to the vehicle control (one-way rmANOVA, Dunnett´s Post-hoc test) are indicated as followed: ☆ p < 0.05, ☆☆ p < 0.01.

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