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Effects of salinity on the toxicity of ionic silver and Ag-PVP nanoparticles to Tisbe battagliai and Ceramium tenuicorne

Research output: Contribution to journal › Article › peer-review

Abstract

The toxic effects of polyvinylpyrrolidone (PVP) coated silver nanoparticles (Ag-NPPVP) and ionic Ag, to Tisbe battagliai (Tb) and Ceramium tenuicorne (Ct) were investigated and the usefulness of standardised marine guidelines for ENP risk assessment were assessed. The toxicity of Ag-NPPVP [CtEC50=26.6μg/L, TbEC50=7.9μg/L] and Ag+ [CtEC50=2312.2μg/L, Tb EC50=90.9μg/L] to both test species differed, with the silver ENPs being more toxic. In contrast to Ag+ the toxicity of Ag-NPPVP increased significantly with increasing salinity, however, after thorough characterisation it was not possible to correlate the behaviour of the particles with an increase in toxicity and salinity. The results suggest that the observed toxicity is being elicited by the free ionic silver complexing in solution and also from an unknown potential particle related effect.

Original languageEnglish
Pages (from-to)101-110
Number of pages10
JournalEcotoxicology and Environmental Safety
Volume86
DOIs
Publication statusPublished - 1 Dec 2012

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 3 - Good Health and Well-being
    SDG 3 Good Health and Well-being
  2. SDG 14 - Life Below Water
    SDG 14 Life Below Water

Keywords

  • Ceramium tenuicorne
  • Marine ecotoxicity
  • Salinity
  • Silver nanoparticles
  • Tisbe battagliai

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