Determination of the mechanism of photoinduced toxicity of selected metal oxide nanoparticles (ZnO, CuO, Co3O4 and TiO2) to E. coli bacteria.

@article{Dasari2013DeterminationOT,
  title={Determination of the mechanism of photoinduced toxicity of selected metal oxide nanoparticles (ZnO, CuO, Co3O4 and TiO2) to E. coli bacteria.},
  author={Thabitha P Dasari and Kavitha Pathakoti and Huey-min Hwang},
  journal={Journal of environmental sciences},
  year={2013},
  volume={25 5},
  pages={882-8}
}
Cytotoxicity of selected metal oxide nanoparticles (MNPs) (ZnO, CuO, Co3O4 and TiO2) was investigated in Escherichia coli both under light and dark conditions. Cytotoxicity experiments were conducted with spread plate counting and the LC50 values were calculated. We determined the mechanism of toxicity via measurements of oxidative stress, reduced glutathione, lipid peroxidation, and metal ions. The overall ranking of the LC50 values was in the order of ZnO < CuO < Co3O4 < TiO2 under dark… CONTINUE READING
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