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Are reproduction impairments of free spawning marine invertebrates exposed to zero-valent nano-iron associated with dissolution of nanoparticles? Kádár, E.; Dyson, O.; Handy, R.D.; Al-Subiai, S.N. (2013). Are reproduction impairments of free spawning marine invertebrates exposed to zero-valent nano-iron associated with dissolution of nanoparticles? Nanotoxicology 7(2): 135-143. https://dx.doi.org/10.3109/17435390.2011.647927 In: Nanotoxicology. TAYLOR & FRANCIS LTD: Abingdon. ISSN 1743-5390; e-ISSN 1743-5404

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Beschikbaar in	Auteurs
VLIZ: Non-open access 321000 [ aanvragen ]

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Trefwoorden

Aquaculture > Quality/Health & Welfare Environmental Management > Environmental Impact Assessment Marine Sciences Scientific Community Scientific Publication Marien/Kust

Author keywords

Zero-valent nano-iron; nanoparticles; Mytilus galloprovincialis;Psammechinus milliaris; Ciona intestinalis; embryo development assay;nanoremediation

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Project	Top | Auteurs
Association of European marine biological laboratories

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Auteurs		Top
Kádár, E. Dyson, O. Handy, R.D. Al-Subiai, S.N.

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Abstract

Studies were carried out to assess the effects of coating applied to zero-valent nano-iron (nZVI) on early life stage development of three key marine invertebrate species Mytilus galloprovincialis, Ciona intestinalis and Psammechinus milliaris. Embryo development was assessed following a 2-h exposure of the sperm to concentrations of two nZVIs of up to 10 mg l-1 followed by in vitro fertilisation. Disruption of embryo development was most severe in sea squirts followed by mussel, while the urchin embryos were not significantly affected as compared with controls. An over twofold decrease in fertilisation success alongside significant delay in the embryo development was observed, and the effect was more severe with the coated form, possibly owing to its better colloidal stability. We provide in vitro evidence for the rapid dissolution (within 2 h) of nZVI in seawater to a degree that concentration of total solute Fe released from the coated ZVI particles exceeds safe limits of NOECs established for dissolved Fe.

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