High-magnetic-moment multifunctional nanoparticles for nanomedicine applications

Yun Hao Xu, Jianmin Bai, Jian Ping Wang

Research output: Contribution to journalArticlepeer-review

54 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

Bibliographical note

Funding Information:
Authors acknowledge support from NSF NFC at University of Minnesota, Seagate Technology, and INSIC Tape program. The authors would also like to thank Dr. Stuart McKernan at the Characterization facility of University of Minnesota.

Copyright 2018 Elsevier B.V., All rights reserved.


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


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