The effect of ligands on FePt-Fe3O4 core-shell magnetic nanoparticles

Dong Hyun Kim, Yoshinori Tamada, Teruo Ono, Samuel D. Bader, Elena A. Rozhkova*, Valentyn Novosad

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

FePt-Fe3O4 core-shell nanoparticles functionalized with 3,4-dihydroxyphenylacetic acid (DOPAC) and dimercaptosuccinic acid (DMSA) ligands were synthesized and characterized. We found that the DOPAC ligand enhances the magnetic properties of the FePt-Fe3O4 particles, in comparison with the DMSA ligand, which induces the oxidation of the shell layer that causes a significant reduction of the saturation magnetization. The synthesized magnetic nanoparticles were evaluated for applications in magnetic hyperthermia and magnetic resonance imaging contrast enhancement.

Original languageEnglish (US)
Pages (from-to)2648-2652
Number of pages5
JournalJournal of Nanoscience and Nanotechnology
Volume14
Issue number3
DOIs
StatePublished - Mar 2014

Keywords

  • 3,4-dihydroxyphenylacetic acid (DOPAC)
  • Dimercaptosuccinic acid (DMSA)
  • FeO
  • FePt
  • Magnetic nanoparticles
  • Surface functionalization

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Biomedical Engineering
  • Materials Science(all)
  • Condensed Matter Physics

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