Synthesis of functionalized fluorescent silver nanoparticles and their toxicological effect in aquatic environments (Goldfish) and HEPG2 cells

Elisabete Oliveira, Hugo M. Santos, Javier Garcia-Pardo, Mário Diniz, Julia Lorenzo, Benito Rodríguez-González, José L. Capelo, Carlos Lodeiro

Research output: Contribution to journalArticleResearchpeer-review

13 Citations (Scopus)

Abstract

© 2013 Oliveira, Santos, Garcia-Pardo, Diniz, Lorenzo, Rodríguez-González, Capelo and Lodeiro. Silver nanoparticles, AgNPs, are widely used in our daily life, mostly due to their antibacterial, antiviral, and antifungal properties. However, their potential toxicity remains unclear. In order to unravel this issue, emissive AgNPs were first synthetized using an inexpensive photochemical method, and then their permeation was assessed in vivo in goldfish and in vitro in human hepatoma cells (HepG2). In addition, the oxidative stress caused by AgNPs was assessed in enzymes such as glutathione-S-transferase (GST), catalase (CAT), and in lipid peroxidation (LPO). This study demonstrates that the smallest sized AgNPs@3 promote the largest changes in gold fish livers, whereas AgNPs@1 were found to be toxic in HEPG2 cells depending on both the size and functionalized/stabilizer ligand.
Original languageEnglish
Article number29
JournalFrontiers in Chemistry
Volume1
DOIs
Publication statusPublished - 5 Dec 2013

Keywords

  • Cytotoxicity
  • Fluorescence
  • Goldfish
  • Human hepatoma cells
  • Silver nanoparticles

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