ABSTRACT

The different probable means of toxic effects of photo catalytic titania nanoparticles (NPs) towards the dominant freshwater and waste water isolate have been looked at in freshwater and waste water matrix, respectively. Due to high demand for TiO2 NPs, and the associated escalating usage and risk to environmental exposure, a detailed study was done which focused on the influence of TiO2 NPs on the water ecosystem. Bacterial strains were chosen to perform antagonistic/synergistic analyses for ternary consortium development. Cell viability assessment was done with single strains and consortium to find out the toxic cause of TiO2 NPs. Superoxide dismutase production was measured in dark conditions for single strains and consortium. SOD concentration increase after TiO2 NPs treatment was calculated for all strains and consortium. The generation of reactive oxygen species under dark condition may be due to the presence of carbon centered free radicals on the bacterial cell membrane.