Research Article
Toxicity of Graphene Shells, Graphene Oxide, and Graphene Oxide Paper Evaluated with Escherichia coli Biotests
Figure 4
The time course of E. coli K12 TG1 lac::lux luminescence during contact with graphene shells (a) and graphene oxide (b) aqueous suspensions, or graphene oxide paper and control paper (c). Ordinate-luminescence level, RLU; abscissa-time measurement, min. Designations: 1: 10−3 mg/L; 2: 5 × 10−4 mg/L; 3: 2.5 × 10−4 mg/L; 4: 1.25 × 10−4 mg/L; 5: 6.25 × 10−5 mg/L; 6: 3.13 × 10−5 mg/L; 7: 1.56 × 10−5 mg/L; 8: 7.81 × 10−6 mg/L; 9: 3.91 × 10−6 mg/L; C: control; wp: white paper, bp: black paper, GO-P: graphene oxide paper.
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