Bioaccumulation and effects of different-shaped copper oxide nanoparticles in the deposit-feeding snail Potamopyrgus antipodarum

Tina Ramskov, Henriette Selck, Gary Thomas Banta, Superb K. Misra, Deborah Berhanu , Eugenia Valsami-Jones, Valery E Forbes

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Resumé

Copper oxide (CuO) nanoparticles (NPs) are among the most widely used engineered NPs and are thus likely to end up in the environment, predominantly in sediments. Copper oxide NPs have been found to be toxic to a variety of (mainly pelagic) organisms, but to differing degrees. In the present study, the influence of CuO NP shape on bioavailability and toxicity in the sediment-dwelling freshwater gastropod Potamopyrgus antipodarum was examined. In 2 separate studies, snails were exposed to either clean sediment or sediment spiked with either aqueous Cu or CuO NPs of different shapes (rods, spheres, or platelets) at 240 µg Cu/g dry weight of sediment (nominal). In neither of the studies was survival found to be related to Cu form (i.e., free ion vs particle) or shape, whereas snail growth was severely influenced by both form and shape. Reproduction was affected (by CuO NP spheres and aqueous Cu) only when estimated as the total number (live plus dead) of juveniles produced per snail per week. Both the aqueous and particulate forms of Cu were available for uptake by snails when mixed into sediment. However, Cu body burden was not directly related to observed effects. The present study stresses the need for both a better understanding of uptake mechanisms and internal distribution pathways of NPs and an assessment of long-term consequences of NP exposure
OriginalsprogEngelsk
TidsskriftEnvironmental Toxicology and Chemistry
Vol/bind33
Udgave nummer9
Sider (fra-til)1976–1987
ISSN0730-7268
DOI
StatusUdgivet - 2014

Emneord

  • Nanoparticles
  • Sediment exposure
  • Copper oxide
  • Bioavailability
  • Mollusc toxicology

Citer dette

Ramskov, Tina ; Selck, Henriette ; Banta, Gary Thomas ; K. Misra, Superb ; Berhanu , Deborah ; Valsami-Jones, Eugenia ; Forbes, Valery E. / Bioaccumulation and effects of different-shaped copper oxide nanoparticles in the deposit-feeding snail Potamopyrgus antipodarum. I: Environmental Toxicology and Chemistry. 2014 ; Bind 33, Nr. 9. s. 1976–1987.
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abstract = "Copper oxide (CuO) nanoparticles (NPs) are among the most widely used engineered NPs and are thus likely to end up in the environment, predominantly in sediments. Copper oxide NPs have been found to be toxic to a variety of (mainly pelagic) organisms, but to differing degrees. In the present study, the influence of CuO NP shape on bioavailability and toxicity in the sediment-dwelling freshwater gastropod Potamopyrgus antipodarum was examined. In 2 separate studies, snails were exposed to either clean sediment or sediment spiked with either aqueous Cu or CuO NPs of different shapes (rods, spheres, or platelets) at 240 µg Cu/g dry weight of sediment (nominal). In neither of the studies was survival found to be related to Cu form (i.e., free ion vs particle) or shape, whereas snail growth was severely influenced by both form and shape. Reproduction was affected (by CuO NP spheres and aqueous Cu) only when estimated as the total number (live plus dead) of juveniles produced per snail per week. Both the aqueous and particulate forms of Cu were available for uptake by snails when mixed into sediment. However, Cu body burden was not directly related to observed effects. The present study stresses the need for both a better understanding of uptake mechanisms and internal distribution pathways of NPs and an assessment of long-term consequences of NP exposure",
keywords = "Nanoparticles, Sediment exposure, Copper oxide, Bioavailability, Mollusc toxicology, Nanoparticles, Sediment exposure, Copper oxide, Bioavailability, Mollusc toxicology",
author = "Tina Ramskov and Henriette Selck and Banta, {Gary Thomas} and {K. Misra}, Superb and Deborah Berhanu and Eugenia Valsami-Jones and Forbes, {Valery E}",
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Bioaccumulation and effects of different-shaped copper oxide nanoparticles in the deposit-feeding snail Potamopyrgus antipodarum. / Ramskov, Tina; Selck, Henriette; Banta, Gary Thomas; K. Misra, Superb ; Berhanu , Deborah; Valsami-Jones, Eugenia; Forbes, Valery E.

I: Environmental Toxicology and Chemistry, Bind 33, Nr. 9, 2014, s. 1976–1987.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - Bioaccumulation and effects of different-shaped copper oxide nanoparticles in the deposit-feeding snail Potamopyrgus antipodarum

AU - Ramskov, Tina

AU - Selck, Henriette

AU - Banta, Gary Thomas

AU - K. Misra, Superb

AU - Berhanu , Deborah

AU - Valsami-Jones, Eugenia

AU - Forbes, Valery E

PY - 2014

Y1 - 2014

N2 - Copper oxide (CuO) nanoparticles (NPs) are among the most widely used engineered NPs and are thus likely to end up in the environment, predominantly in sediments. Copper oxide NPs have been found to be toxic to a variety of (mainly pelagic) organisms, but to differing degrees. In the present study, the influence of CuO NP shape on bioavailability and toxicity in the sediment-dwelling freshwater gastropod Potamopyrgus antipodarum was examined. In 2 separate studies, snails were exposed to either clean sediment or sediment spiked with either aqueous Cu or CuO NPs of different shapes (rods, spheres, or platelets) at 240 µg Cu/g dry weight of sediment (nominal). In neither of the studies was survival found to be related to Cu form (i.e., free ion vs particle) or shape, whereas snail growth was severely influenced by both form and shape. Reproduction was affected (by CuO NP spheres and aqueous Cu) only when estimated as the total number (live plus dead) of juveniles produced per snail per week. Both the aqueous and particulate forms of Cu were available for uptake by snails when mixed into sediment. However, Cu body burden was not directly related to observed effects. The present study stresses the need for both a better understanding of uptake mechanisms and internal distribution pathways of NPs and an assessment of long-term consequences of NP exposure

AB - Copper oxide (CuO) nanoparticles (NPs) are among the most widely used engineered NPs and are thus likely to end up in the environment, predominantly in sediments. Copper oxide NPs have been found to be toxic to a variety of (mainly pelagic) organisms, but to differing degrees. In the present study, the influence of CuO NP shape on bioavailability and toxicity in the sediment-dwelling freshwater gastropod Potamopyrgus antipodarum was examined. In 2 separate studies, snails were exposed to either clean sediment or sediment spiked with either aqueous Cu or CuO NPs of different shapes (rods, spheres, or platelets) at 240 µg Cu/g dry weight of sediment (nominal). In neither of the studies was survival found to be related to Cu form (i.e., free ion vs particle) or shape, whereas snail growth was severely influenced by both form and shape. Reproduction was affected (by CuO NP spheres and aqueous Cu) only when estimated as the total number (live plus dead) of juveniles produced per snail per week. Both the aqueous and particulate forms of Cu were available for uptake by snails when mixed into sediment. However, Cu body burden was not directly related to observed effects. The present study stresses the need for both a better understanding of uptake mechanisms and internal distribution pathways of NPs and an assessment of long-term consequences of NP exposure

KW - Nanoparticles

KW - Sediment exposure

KW - Copper oxide

KW - Bioavailability

KW - Mollusc toxicology

KW - Nanoparticles

KW - Sediment exposure

KW - Copper oxide

KW - Bioavailability

KW - Mollusc toxicology

U2 - 10.1002/etc.2639

DO - 10.1002/etc.2639

M3 - Journal article

VL - 33

SP - 1976

EP - 1987

JO - Environmental Toxicology and Chemistry

JF - Environmental Toxicology and Chemistry

SN - 0730-7268

IS - 9

ER -