20.500.12556/DiRROS-753
The hazard assessment of nanostructured CeO [sub] 2-based mixed oxides on the zebrafish Danio rerio under environmentally relevant UV-A exposure
The effect of nanomaterials on biota under realistic environmental conditions is an important question. However, there is still a lack of knowledge on how different illumination conditions alter the toxicity of some photocatalytic nanomaterials. We have investigated how environmentally relevant UV-A exposure (intensity 8.50 ± 0.61 W/m2, exposure dose 9.0 J/cm2) affected the toxicity of cerium oxide (CeO2)-based nanostructured materials to the early-life stages of zebrafish Danio rerio. Pure cerium oxide (CeO2), copper–cerium (CuO–CeO2) (with a nominal 10, 15 and 20 mol.% CuO content), cerium–zirconium (CeO2–ZrO2) and nickel and cobalt (Ni–Co) deposited over CeO2–ZrO2 were tested. It was found that under both illumination regimes, none of the tested materials affected the normal development or induced mortality of zebrafish early-life stages up to 100 mg/L. Only in the case of CuO–CeO2, the growth of larvae was decreased (96 h LOEC values for CuCe10, CuCe15 and CuCe20 were 50, 50 and 10 mg/L, respectively). To conclude, CeO2-based nanostructured materials are not severely toxic to zebrafish and environmentally relevant UV-A exposure does not enhance their toxicity.
Nickel cobalt nanocrystalline catalysts
UV-A phototoxicity
UV-shielding
zebrafish
kemijski inženirstvo
nanostrukture
ekologija
true
false
false
Angleški jezik
Ni določen
Članek v reviji
2014-12-16 14:22:25
2014-12-16 14:43:36
2022-08-10 03:32:35
0000-00-00 00:00:00
2015
0
0
Sodelavci: Petar Djinović, Ilja Gasan Osojnik Črnivec, Albin Pintar;
str. 272-278
Vol. 506/507
Vol. 506/507
Feb. 2015
0000-00-00
NiDoloceno
Objavljeno
NiDoloceno
0000-00-00
0000-00-00
0000-00-00
66.02
0048-9697
10.1016/j.scitotenv.2014.10.120
5610010
26369024
http://ac.els-cdn.com/S0048969714015824/1-s2.0-S0048969714015824-main.pdf?_tid=4b47f882-793d-11e4-9445-00000aab0f27&acdnat=1417426669_adc9266a53bb00e5048c9aa335a14ea3
1
https://dirros.openscience.si/Dokument.php?lang=slv&id=5719
Kemijski inštitut
0
0
0