BioMed Research International

Research Article

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

Table 2

Dose-dependent and time-dependent GO aqueous suspensions toxicity in bacterial bioluminescence inhibition assay characterized by EC50 value (mg/L content) at varying bacterial cell number in the sample.
E. coli K12 TG1 lac::lux, CFU per 1 mLTime measurement
60 min120 min180 min
3.70 × 1081.13 ± 0.05 × 10−41.04 ± 0.03 × 10−47.92 ± 0.24 × 10−5
1.85 × 1088.81 ± 0.26 × 10−58.20 ± 0.33 × 10−55.67 ± 0.17 × 10−5
9.25 × 1075.57 ± 0.22 × 10−55.04 ± 0.23 × 10−53.88 ± 0.12 × 10−5
4.62 × 1072.55 ± 0.10 × 10−52.49 ± 0.10 × 10−52.28 ± 0.09 × 10−5