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

Article

关键词: FLUID HYPERTHERMIA;    IN-VITRO;    TUMORS;    CELLS;    FIELD;    VIVO;   

DOI  :  10.1103/PhysRevB.85.045435

来源: SCIE

【 摘 要 】

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.

【 授权许可】

Free