High-magnetic-moment multifunctional nanoparticles for nanomedicine applications

Yun Hao Xu, Jianmin Bai, Jian Ping Wang

Research output: Contribution to journalArticlepeer-review

51 Scopus citations


Multifunctional FeCo nanoparticles with narrow size distribution (less than 8% standard deviation) were fabricated by a novel physical vapor nanoparticle-deposition technique. The size of magnetic nanoparticles was controlled in the range from 3 to 100 nm. The shape of nanoparticles was controlled to be either spherical or cubic. The particles had a high specific magnetization of 226 emu/g at low saturation field, which is much higher than the currently commercialized iron oxide nanoparticles. Core-shell-type Co(Fe)-Au nanoparticles were produced by the same technique. They combined the high moment of the Co(Fe) core with the plasmonic feature of a Au shell.

Original languageEnglish (US)
Pages (from-to)131-134
Number of pages4
JournalJournal of Magnetism and Magnetic Materials
Issue number1 SPEC. ISS.
StatePublished - Apr 2007


  • Co-Au particle
  • Core-shell nanoparticle
  • FeCo
  • High moment
  • Hyperthermia
  • MRI imaging
  • Magnetic particle
  • Multifunction
  • Nano-shell
  • Nanomedicine
  • Nanoparticle
  • Plasmonic

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