Naslov
Effects of CeO2 Nanoparticles on Terrestrial Isopod Porcellio scaber : Comparison of CeO2 Biological Potential with Other Nanoparticles

Autori
Malev, Olga ; Trebše, Polonca ; Piecha, Malgorzata ; Novak, Sara ; Budič, Bojan ; Dramićanin, Miroslav ; Drobne, Damjana

Izvornik
Archives of environmental contamination and toxicology (0090-4341) 72 (2017), 2; 303-311

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
nanoparticles, toxicity, ispods, ceria

Sažetak
Nano-sized cerium dioxide (CeO2) particles are emerging as an environmental issue due to their extensive use in automobile industries as fuel additives. Limited information is available on the potential toxicity of CeO2 nanoparticles (NPs) on terrestrial invertebrates through dietary exposure. In the present study, the toxic effects of CeO2 NPs on the model soil organism Porcellio scaber were evaluated. Nanotoxicity was assessed by monitoring the lipid peroxidation (LP) level and feeding rate after 14-days exposure to food amended with nano CeO2. The exposure concentration of 1000 μg of CeO2 NPs g−1 dry weight food for 14 days significantly increased both the feeding rate and LP. Thus, this exposure dose is considered the lowest observed effect dose. At higher exposure doses of 2000 and 5000 μg of CeO2 NPs g−1 dry weight food, NPs significantly decreased the feeding rate and increased the LP level. Comparative studies showed that CeO2 NPs are more biologically potent than TiO2 NPs, ZnO NPs, CuO NPs, CoFe2O4 NPs, and Ag NPs based on feeding rate using the same model organism and experimental setup. Based on comparative metal oxide NPs toxicities, the present results contribute to the knowledge related to the ecotoxicological effects of CeO2 NPs in terrestrial invertebrates exposed through feeding.

Izvorni jezik
Engleski

Znanstvena područja
Biologija

POVEZANOST RADA