Ag nanoparticles : Size- and surface-dependent effects on model aquatic organisms and uptake evaluation with NanoSIMS

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

  • Anastasia Georgantzopoulou
  • Philipp Rosenkranz
  • Maria Dusinska
  • Anna Lankoff
  • Maria Wojewodzka
  • Marcin Kruszewski
  • Cédric Guignard
  • Jean-Nicolas Audinot
  • Shanmugam Girija
  • Lucien Hoffmann
  • Arno C. Gutleb

Detail(s)

Original languageEnglish
Pages (from-to)1168-1178
Journal / PublicationNanotoxicology
Volume7
Issue number7
Publication statusPublished - Nov 2013
Externally publishedYes

Abstract

This study aims to assess the effects of Ag particles synthesised by a chemical (Ag 20, 200 nm) and biological method (Ag 23, 27 nm) in aquatic organisms: the bacterium Vibrio fischeri, the alga Desmodesmus subspicatus and the crustacean Daphnia magna. Ag particles exerted toxic effects in all organisms studied with Ag particles 23 nm being the most potent. Although soluble Ag was released in all media, the differences between the tested Ag particles still cannot be explained solely based on soluble Ag. NanoSIMS analysis performed with D. magna showed that apart from their localisation in the gut lumen, Ag 200 nm and Ag NPs 23 nm seemed to pass through the epithelial barrier as well. Ag NPs 23 nm localised in specific areas seemed to be within the ovaries. This study strengthens the argument that size, method of synthesis as well as surface chemistry may affect the uptake and toxic effects of Ag NPs. © Informa UK, Ltd.

Research Area(s)

  • Ag nanoparticles, Daphnia magna, Desmodesmus subspicatus, NanoSIMS, Vibrio fischeri

Bibliographic Note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to lbscholars@cityu.edu.hk.

Citation Format(s)

Ag nanoparticles: Size- and surface-dependent effects on model aquatic organisms and uptake evaluation with NanoSIMS. / Georgantzopoulou, Anastasia; Balachandran, Yekkuni L.; Rosenkranz, Philipp et al.
In: Nanotoxicology, Vol. 7, No. 7, 11.2013, p. 1168-1178.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review