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Title:The hazard assessment of nanostructured CeO [sub] 2-based mixed oxides on the zebrafish Danio rerio under environmentally relevant UV-A exposure
Authors:ID Jemec, Anita (Author)
ID Djinović, Petar (Author)
ID Osojnik Črnivec, Ilja Gasan (Author)
ID Pintar, Albin (Author)
Files:URL URL - Presentation file, visit http://ac.els-cdn.com/S0048969714015824/1-s2.0-S0048969714015824-main.pdf?_tid=4b47f882-793d-11e4-9445-00000aab0f27&acdnat=1417426669_adc9266a53bb00e5048c9aa335a14ea3
 
Language:English
Typology:1.01 - Original Scientific Article
Organization:Logo KI - National Institute of Chemistry
Abstract: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.
Keywords:Nickel cobalt nanocrystalline catalysts, UV-A phototoxicity, UV-shielding, zebrafish
Year of publishing:2015
Publication status in journal:Published
Number of pages:str. 272-278
Numbering:Vol. 506/507, Vol. 506/507
PID:20.500.12556/DiRROS-753 New window
UDC:66.02
ISSN on article:0048-9697
DOI:10.1016/j.scitotenv.2014.10.120 New window
COBISS.SI-ID:5610010 New window
Note:Sodelavci: Petar Djinović, Ilja Gasan Osojnik Črnivec, Albin Pintar;
Publication date in DiRROS:16.12.2014
Views:8591
Downloads:428
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Record is a part of a journal

Title:Science of the total environment
Shortened title:Sci. total environ.
Publisher:Elsevier
ISSN:0048-9697
COBISS.SI-ID:26369024 New window

Secondary language

Language:Undetermined
Keywords:kemijski inženirstvo, nanostrukture, ekologija


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