Journal ArticleDOI
Effect of alignment of easy axes on dynamic magnetization of immobilized magnetic nanoparticles
Takashi Yoshida,Yuki Matsugi,Naotaka Tsujimura,Teruyoshi Sasayama,Keiji Enpuku,Thilo Viereck,Meinhard Schilling,Frank Ludwig +7 more
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TLDR
In this paper, the effect of the alignment of the magnetic easy axes on the dynamic magnetization of immobilized magnetic nanoparticles under an AC excitation field was explored, and it was shown that the parallel-aligned sample has the largest hysteresis in the magnetization curve and the largest harmonic magnetization spectra.About:
This article is published in Journal of Magnetism and Magnetic Materials.The article was published on 2017-04-01. It has received 46 citations till now. The article focuses on the topics: Magnetic anisotropy & Magnetization.read more
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Facile Assembly of Aligned Magnetic Nanoparticle Chains in Polymer Nanocomposite Films by Magnetic Flow Coating.
Hongyi Yuan,Irina J. Zvonkina,Abdullah M. Al-Enizi,Ahmed A. Elzatahry,Jeffrey Pyun,Alamgir Karim +5 more
TL;DR: The Young's bending modulus of the aligned MP GNP nanocomposite films as revealed by a thin film wrinkling metrology showed that the elastic modulus along the chain axis direction was higher for the film with the cylindrical but not the spherical MPGNP chains, suggesting that PGNP chain flexural properties depend on asymmetry of the localMPGNP unit, much like the persistence length "stiffness" effect of polymer chains.
Journal ArticleDOI
Evaluation of easy-axis dynamics in a magnetic fluid by measurement and analysis of the magnetization curve in an alternating magnetic field
Satoshi Ota,Yasushi Takemura +1 more
TL;DR: In this paper, the authors measured the magnetization curves of superparamagnetic nanoparticles by subtracting the smoothness of the easy axis of the solid from that of the liquid.
Posted Content
Towards Accurate Modeling of the Multidimensional Magnetic Particle Imaging Physics.
TL;DR: In this paper, a physical model that is based on Neel rotation for large particle ensembles was proposed to describe measured 2D MPI data with much higher precision than state-of-the-art MPI models.
Journal ArticleDOI
Towards Accurate Modeling of the Multidimensional Magnetic Particle Imaging Physics
TL;DR: In this article, a physical model that is based on Neel rotation for large particle ensembles was proposed to describe measured 2D MPI data with much higher precision than state-of-the-art MPI models.
Journal ArticleDOI
Mathematical models for magnetic particle imaging
TL;DR: In this paper, a survey of deterministic and non-deterministic models for magnetic particle imaging is presented, which are based on the physical behavior including relaxation mechanisms affecting the particle magnetization.
References
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Heating magnetic fluid with alternating magnetic field
TL;DR: In this paper, the authors developed analytical relationships and computations of power dissipation in magnetic fluid (ferrofluid) subjected to alternating magnetic field and showed that the dissipation results from the orientational relaxation of particles having thermal fluctuations in a viscous medium.
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Tomographic imaging using the nonlinear response of magnetic particles
TL;DR: A method for obtaining a high-resolution image of magnetic tracers that takes advantage of the nonlinear magnetization curve of small magnetic particles and has the potential to be developed into an imaging method characterized by both high spatial resolution as well as high sensitivity.
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Progress in applications of magnetic nanoparticles in biomedicine
Quentin A. Pankhurst,Quentin A. Pankhurst,Nguyen T. K. Thanh,Nguyen T. K. Thanh,S. K. Jones,Jon Dobson +5 more
TL;DR: A progress report on the biomedical applications of magnetic nanoparticles since 2003 is presented in this paper, with a focus on magnetic actuation for in vitro non-viral transfection and tissue engineering.
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Langevin-dynamics study of the dynamical properties of small magnetic particles
TL;DR: In this paper, the Langevin-dynamics approach was used to study the dynamics of magnetic nanoparticles, and the results were compared with different analytical expressions used to model the relaxation of nanoparticle ensembles, assessing their accuracy.
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Hyperthermic effects of dissipative structures of magnetic nanoparticles in large alternating magnetic fields
TL;DR: Numerically compared the magnetic loss in rotatable nanoparticles in aqueous media with that of non-rotatable nanoparticle anchored to localised structures to shed new light on the design of targeted magnetic hyperthermia treatments.