Cristin-resultat-ID: 1620142
Sist endret: 2. januar 2019, 12:25
NVI-rapporteringsår: 2018
Resultat
Vitenskapelig artikkel
2018

Route of exposure has a major impact on uptake of silver nanoparticles in Atlantic salmon (Salmo salar)

Bidragsytere:
  • Merethe Kleiven
  • Bjørn O Rosseland
  • Hans-Christian Teien
  • Erik Joner og
  • Deborah Helen Oughton

Tidsskrift

Environmental Toxicology and Chemistry
ISSN 0730-7268
e-ISSN 1552-8618
NVI-nivå 2

Om resultatet

Vitenskapelig artikkel
Publiseringsår: 2018
Volum: 37
Hefte: 11
Sider: 2895 - 2903

Importkilder

Scopus-ID: 2-s2.0-85053520409

Beskrivelse Beskrivelse

Tittel

Route of exposure has a major impact on uptake of silver nanoparticles in Atlantic salmon (Salmo salar)

Sammendrag

The potential impact of silver nanoparticles (Ag NPs) on aquatic organisms is to a large extent determined by theirbioavailability through different routes of exposure. In the present study juvenile Atlantic salmon (Salmo salar) were exposed todifferent sources of radiolabeled Ag (radiolabeled110mAg NPs and110mAgNO3). After 48 h of waterborne exposure to 3mg/Lcitrate stabilized110mAg NPs or110mAgNO3, or a dietary exposure to 0.6mg Ag/kg fish (given as citrate stabilized or uncoated110mAg NPs, or110mAgNO3), Ag had been taken up in fish regardless of route of exposure or source of Ag (Ag NPs or AgNO3).Waterborne exposure led to high Ag concentrations on the gills, and dietary exposure led to high concentrations in thegastrointestinal tract. Silver distribution to the target organs was similar for both dietary and waterborne exposure, with the liveras the main target organ. The accumulation level of Ag was 2 to 3 times higher for AgNO3than for Ag NPs when exposure wasthrough water, whereas no significant differences were seen after dietary exposure. The transfer (Bq/g liver/g food or water)from exposure through water was 4 orders of magnitude higher than from feed using the smallest, citrate-stabilized Ag NPs(4 nm). The smallest NPs had a 5 times higher bioavailability in food compared with the larger and uncoated Ag NPs (20 nm).Despite the relatively low transfer of Ag from diet to fish, the short lifetime of Ag NPs in water and their transfer to sediment,feed, or sediment-dwelling food sources such as larvae and worms could make diet a significant long-term exposure route.

Tittel

Route of exposure has a major impact on uptake of silver nanoparticles in Atlantic salmon (Salmo salar)

Bidragsytere

Merethe Kleiven

  • Tilknyttet:
    Forfatter
    ved Miljøvitenskap og naturforvaltning ved Norges miljø- og biovitenskapelige universitet

Bjørn Olav Rosseland

Bidragsyterens navn vises på dette resultatet som Bjørn O Rosseland
  • Tilknyttet:
    Forfatter
    ved Miljøvitenskap og naturforvaltning ved Norges miljø- og biovitenskapelige universitet

Hans-Christian Teien

  • Tilknyttet:
    Forfatter
    ved Miljøvitenskap og naturforvaltning ved Norges miljø- og biovitenskapelige universitet
Aktiv cristin-person

Erik Joner

  • Tilknyttet:
    Forfatter
    ved Divisjon for miljø og naturressurser ved Norsk institutt for bioøkonomi

Deborah H Oughton

Bidragsyterens navn vises på dette resultatet som Deborah Helen Oughton
  • Tilknyttet:
    Forfatter
    ved Miljøvitenskap og naturforvaltning ved Norges miljø- og biovitenskapelige universitet
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