Toxicity of Graphene Shells, Graphene Oxide, and Graphene Oxide Paper Evaluated with Escherichia coli Biotests

Figure 5

The dose-response curves described the changes in the bioluminescence inhibition indexes () caused by differing graphene oxide (GO) content and varying bacterial cell number in the sample: 1–3.70 × 10⁸ CFU per 1 mL; 2–1.85 × 10⁸ CFU per 1 mL; 3–9.25 × 10⁷ CFU per 1 mL; 4–4.62 × 10⁷ CFU per 1 mL.