Radiation-induced synthesis of Au/Fe oxide nanocomposite particles for magnetic separation of biomolecules

Satoshi Seino, Takuya Kinoshita, Yohei Otome, Takashi Nakagawa, Kenji Okitsu, Tadachika Nakayama, Tohru Sekino, Koichi Niihara, Takao A. Yamamoto

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

Nanocomposite particles composed of gold and iron oxide were synthesized with various ratios of gold and iron oxide in an aqueous phase using γ-rays. Iron oxide nanoparticles of γ-Fe2O3 or Fe3O4 were used as a magnetic phase on which gold nanoparticles with average diameters of 5-10 nm were supported. The efficiency of magnetic separation of biomolecules by the present nanocomposite particles was investigated using glutathione as a model compound. The amount of glutathione magnetically separated was significantly enhanced by the supported gold nanoparticles.

Original languageEnglish
Pages (from-to)136-139
Number of pages4
JournalJournal of Ceramic Processing Research
Volume5
Issue number2
Publication statusPublished - 2004 Aug 27

Keywords

  • Au
  • FeO
  • Magnetic separation
  • Nanocomposite particle
  • γ-FeO
  • γ-ray

ASJC Scopus subject areas

  • Ceramics and Composites

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