One-pot polyol synthesis of monosize PVP-coated sub-5 nm Fe3O4 nanoparticles for biomedical applications

Hong Ling Liu, Seung Pil Ko, Jun Hua Wu, Myung Hwa Jung, Ji Hyun Min, Ju Hun Lee, Boo Hyun An, Young Keun Kim

Research output: Contribution to journalArticle

107 Citations (Scopus)

Abstract

Polyvinylpyrrolidone (PVP)-coated sub-5 nm monosize Fe3O4 nanoparticles were synthesized by reduction of Fe(III) acetylacetonate in the presence of PVP polymer as surfactant in one-pot polyol process. Their microstructure and magnetic properties were characterized by XRD, TEM/HRTEM and VSM. It is found that the nanoparticles have high crystallinity with distinct lattices and the magnetic measurements reveal their well-defined superparamagnetic behavior at room temperature. Such Fe3O4 nanoparticles with tailorable size and tunable magnetic properties are promising for biomedical applications.

Original languageEnglish
Pages (from-to)e815-e817
JournalJournal of Magnetism and Magnetic Materials
Volume310
Issue number2 SUPPL. PART 3
DOIs
Publication statusPublished - 2007 Mar

Keywords

  • FeO
  • Magnetic
  • Magnetite
  • Nanoparticle
  • Polyol synthesis
  • Ultrasmall size

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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