New synthesized nanoparticles (Fe2O3 1A, ZnO G18 and ZnFeO) - influence on Daphnia magna (Straus, 1820)
Year: 2024
Type: article
Abstract: Daphnia magna (Straus, 1820), a small species of water fleas with a short life cycle and high sensitivity to water pollution, is model used as a keystone species in eco-toxicological experiments in freshwater ecosystems to assess the biological effect of new synthesized nanoparticles on the environment.Preliminary studies were conducted with Daphnia magna (Crustacea, Cladocera) and three types of nanoparticles: Fe2O3-1A, ZnO-G18 and ZnFeO. The preliminary results showed high toxicity and mortality in daphnia treated with Fe2O3 1A and ZnO-G18 and low toxicity and mortality of daphnia treated with ZnFeO nanoparticles. The ferrite nanoparticles (Fe2O3-1A) obtained by physical means were toxic to D. magna at concentrations of 0.5 mg L-1. For ZnO-G18 a concentration of 0. 5 mg L-1 killed 90% of daphnia at 48 h and a concentration of 0.05 mg L-1 it killed 70% of daphnia. The treatment with ZnFeO nanoparticles demonstrated a weaker effect on daphnia. Survival was 100% at a concentration of 0.02 mg L-1 and 90% at a concentration of 0.2 mg L-1.
Institution: Sofia University "St. Kliment Ohridski"
Language: English
Subfield: Health, Toxicology and Mutagenesis
Field: Environmental Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7172587972