Magnetic properties of magnetic nanoparticles for efficient hyperthermia

Ihab M. Obaidat, Bashar Issa, Yousef Haik

Research output: Contribution to journalReview article

177 Citations (Scopus)

Abstract

Localized magnetic hyperthermia using magnetic nanoparticles (MNPs) under the application of small magnetic fields is a promising tool for treating small or deep-seated tumors. For this method to be applicable, the amount of MNPs used should be minimized. Hence, it is essential to enhance the power dissipation or heating efficiency of MNPs. Several factors influence the heating efficiency of MNPs, such as the amplitude and frequency of the applied magnetic field and the structural and magnetic properties of MNPs. We discuss some of the physics principles for effective heating of MNPs focusing on the role of surface anisotropy, interface exchange anisotropy and dipolar interactions. Basic magnetic properties of MNPs such as their superparamagnetic behavior, are briefly reviewed. The influence of temperature on anisotropy and magnetization of MNPs is discussed. Recent development in self-regulated hyperthermia is briefly discussed. Some physical and practical limitations of using MNPs in magnetic hyperthermia are also briefly discussed.

Original languageEnglish
Pages (from-to)63-89
Number of pages27
JournalNanomaterials
Volume5
Issue number1
DOIs
Publication statusPublished - 9 Jan 2014
Externally publishedYes

Keywords

  • Anisotropy
  • Curie
  • Hyperthermia
  • Magnetic nanoparticles (MNPs)
  • Power dissipation
  • Temperature

ASJC Scopus subject areas

  • Materials Science(all)
  • Chemical Engineering(all)

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