Ecotoxicity of selected carbon-based nanomaterials

Abstract The widespread use of the nanomaterials increases emission nano-pollutants into water. Carbon are particularly interesting. They characterized by relatively stable structure, which makes them able to migrate and accumulate in environment. Therefore, aim this study was determine potential toxicity at different trophic levels four selected carbon nanostructures: graphene oxide (GO), reduced (rGO), multi-walled nanotubes (MWCNTs) oxidized (f-MWCNTs) on indicators three levels. Producers represented Lemna minor growth inhibition test. ecotoxicological effect for consumers estimated acute tests Artemia franciscana , Brachionus calyciflorus Thamnocephalus platyurus while decomposers studied bacteria Escherichia coli . Results show that short-term exposure MWCNTs, f-MWCNTs, GO rGO can be toxic influence tested materials much higher consumers, than producers. lowest from all researched carbon-based presented GO. Moreover, generation high reactive form oxygen, mechanical damage cell wall membrane is one main mechanism; thus, depends heavily dose shape nanomaterials.