A simple chemical route toward monodisperse iron carbide nanoparticles displaying tunable magnetic and unprecedented hyperthermia properties

Nano Lett. 2012 Sep 12;12(9):4722-8. doi: 10.1021/nl302160d. Epub 2012 Aug 1.

Abstract

We report a tunable organometallic synthesis of monodisperse iron carbide and core/shell iron/iron carbide nanoparticles displaying a high magnetization and good air-stability. This process based on the decomposition of Fe(CO)(5) on Fe(0) seeds allows the control of the amount of carbon diffused and therefore the tuning of nanoparticles magnetic anisotropy. This results in unprecedented hyperthermia properties at moderate magnetic fields, in the range of medical treatments.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Carbon Compounds, Inorganic / chemistry*
  • Carbon Compounds, Inorganic / radiation effects
  • Electric Impedance
  • Hyperthermia, Induced / methods*
  • Iron Compounds / chemistry*
  • Iron Compounds / radiation effects
  • Magnetic Fields
  • Materials Testing
  • Metal Nanoparticles / chemistry*
  • Metal Nanoparticles / radiation effects*
  • Particle Size

Substances

  • Carbon Compounds, Inorganic
  • Iron Compounds
  • iron carbide