Work

Approaches for Modeling Magnetic Nanoparticle Dynamics

Year: 2014

Type: article

Abstract: Magnetic nanoparticles are useful biological probes as well as therapeutic agents. Several approaches have been used to model nanoparticle magnetization dynamics for both Brownian as well as Neel rotation. Magnetizations are often of interest and can be compared with experimental results. Here we summarize these approaches, including the Stoner-Wohlfarth approach and stochastic approaches including thermal fluctuations. Non-equilibrium-related temperature effects can be described by a distribution function approach (Fokker-Planck equation) or a stochastic differential equation (Langevin equation). Approximate models in several regimes can be derived from these general approaches to simplify implementation.

Source: Critical Reviews in Biomedical Engineering

DOI: 10.1615/critrevbiomedeng.2014010845

Authors: Daniel B. Reeves, John B. Weaver

Institutions: Dartmouth College, Dartmouth–Hitchcock Medical Center, Dartmouth Health

Language: English

Topic: Characterization and Applications of Magnetic Nanoparticles

Subfield: Biomedical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: green

Funders: National Institutes of Health, National Cancer Institute

Awards: Dartmouth Center for Cancer Nanotechnology Excellence, Cancer Center Support Grant