Role of dipole-dipole interactions for hyperthermia heating of magnetic nanoparticle ensembles

Haase, Christian; Nowak, Ulrich

Role of dipole-dipole interactions for hyperthermia heating of magnetic nanoparticle ensembles

Files

Nowak_role.pdf(2.64 MB)

Date

2012

Authors

Haase, Christian

Nowak, Ulrich

Publication type

Journal article

Published in

Physical Review B ; 85 (2012), 4. - ISSN 1098-0121

Abstract

For clinical hyperthermia treatment the heating efficiency of magnetic nanoparticle ensembles is a crucial element. Using efficient algorithms, this heating is studied numerically with a focus on the effects of dipole-dipole interparticle interactions. For the time evolution of realistically modeled systems an approach based on the Landau-Lifschitz-Gilbert equation of motion with Langevin dynamics is taken. Our results suggest a widely negative influence of dipole-dipole interactions on the heating power of nanoparticles. However, considering ensembles within a fixed, given sample volume an optimal particle density exists. The presented results may have important implications for the medical use of magnetic hyperthermia treatment.

Subject (DDC)

530 Physics

Keywords

dipole-dipole interactions,hyperthermia heating,magnetic nanoparticle ensembles

Cite This

ISO 690

HAASE, Christian, Ulrich NOWAK, 2012. Role of dipole-dipole interactions for hyperthermia heating of magnetic nanoparticle ensembles. In: Physical Review B. 85(4). ISSN 1098-0121. Available under: doi: 10.1103/PhysRevB.85.045435

BibTex

@article{Haase2012dipol-18540,
  year={2012},
  doi={10.1103/PhysRevB.85.045435},
  title={Role of dipole-dipole interactions for hyperthermia heating of magnetic nanoparticle ensembles},
  number={4},
  volume={85},
  issn={1098-0121},
  journal={Physical Review B},
  author={Haase, Christian and Nowak, Ulrich}
}

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