Attachment Efficiency of Nanomaterials to Algae as an Important Criterion for Ecotoxicity and Grouping.

ABSTRACT: Engineered nanomaterials (ENMs) based on CeO2 and TiO2 differ in their effects on the unicellular green alga Raphidocelissubcapitata but these effects do not reflect the physicochemical parameters that characterize such materials in water and other test media. To determine whether interactions with algae can predict the ecotoxicity of ENMs, we studied the attachment of model compounds (three subtypes of CeO2 and five subtypes of TiO2) to algal cells by light microscopy and electron microscopy. We correlated our observations with EC50 values determined in growth inhibition assays carried out according to the Organisation for Economic Co-operation and Development (OECD) test guideline 201. Light microscopy revealed distinct patterns of ENM attachment to algal cells according to the type of c

SUBMITTER: Hund-Rinke K 

PROVIDER: S-EPMC7352665 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature