Gold nanoparticles and oxidative stress in the blue mussel, Mytilus edulis

Sara Tedesco, Hugh Doyle, Daniela Iacopino, Irene O'Donovan, Sarah Keane, David Sheehan

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

5 Scopus citations

Abstract

Relatively little is known about how gold nanoparticles (GNP) might interact in vivo with aquatic organisms. Gold nanoparticles (GNP) of defined average diameter may be synthesized and used to challenge test organisms held in aquaria. The blue mussel, Mytilus edulis, is a popular sentinel species in environmental toxicology. This chapter describes how mussels exposed to GNP (average diameter ~5 nm) may be dissected and extracts of digestive gland can be analyzed for oxidative stress. Protein thiols are labeled with 5′-iodoacetamide-fluorescein (IAF), and proteins are separated in one-dimensional electrophoresis. After scanning for IAF-associated fluorescence, gels are stained with colloidal coomassie. A ratio of fluorescence to protein stain is calculated revealing that thiol oxidation increases with GNP treatment.

Original languageBritish English
Title of host publicationOxidative Stress and Nanotechnology
Subtitle of host publicationMethods and Protocols
Pages197-203
Number of pages7
DOIs
StatePublished - 2013

Publication series

NameMethods in Molecular Biology
Volume1028
ISSN (Print)1064-3745

Keywords

  • Carbonylation
  • Digestive gland
  • Gold nanoparticle
  • Mussel
  • Mytilus
  • Oxidative stress
  • Thiol oxidation

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