Magnetophoretic Equilibrium of a Polydisperse Ferrofluid

The equilibrium concentration distribution of magnetic nanoparticles in a nonuniform magnetic field is studied theoretically. A linear current-carrying wire is used as a source of a nonuniform field. An exact solution for the concentration profile of a dilute monodisperse suspension is obtained with...

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Autores principales:	Andrey A. Kuznetsov, Ivan A. Podlesnykh
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	magnetic nanoparticles ferrofluid magnetophoresis diffusion mass transfer polydispersity Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/dbeec4e318044c98823ba20e23c26dcc
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spelling	oai:doaj.org-article:dbeec4e318044c98823ba20e23c26dcc2021-11-25T18:30:20ZMagnetophoretic Equilibrium of a Polydisperse Ferrofluid10.3390/nano111128492079-4991https://doaj.org/article/dbeec4e318044c98823ba20e23c26dcc2021-10-01T00:00:00Zhttps://www.mdpi.com/2079-4991/11/11/2849https://doaj.org/toc/2079-4991The equilibrium concentration distribution of magnetic nanoparticles in a nonuniform magnetic field is studied theoretically. A linear current-carrying wire is used as a source of a nonuniform field. An exact solution for the concentration profile of a dilute monodisperse suspension is obtained within the framework of the continuous mass transfer theory. The applicability of this solution in a broad range of amperage values is tested using Langevin dynamics simulations. Obtained solution is also generalized for polydisperse suspensions. It is demonstrated that the particle size distribution in a polydisperse system strongly depends on the distance from the wire and in general does not coincide with the original distribution of a uniform suspension.Andrey A. KuznetsovIvan A. PodlesnykhMDPI AGarticlemagnetic nanoparticlesferrofluidmagnetophoresisdiffusionmass transferpolydispersityChemistryQD1-999ENNanomaterials, Vol 11, Iss 2849, p 2849 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	magnetic nanoparticles ferrofluid magnetophoresis diffusion mass transfer polydispersity Chemistry QD1-999
spellingShingle	magnetic nanoparticles ferrofluid magnetophoresis diffusion mass transfer polydispersity Chemistry QD1-999 Andrey A. Kuznetsov Ivan A. Podlesnykh Magnetophoretic Equilibrium of a Polydisperse Ferrofluid
description	The equilibrium concentration distribution of magnetic nanoparticles in a nonuniform magnetic field is studied theoretically. A linear current-carrying wire is used as a source of a nonuniform field. An exact solution for the concentration profile of a dilute monodisperse suspension is obtained within the framework of the continuous mass transfer theory. The applicability of this solution in a broad range of amperage values is tested using Langevin dynamics simulations. Obtained solution is also generalized for polydisperse suspensions. It is demonstrated that the particle size distribution in a polydisperse system strongly depends on the distance from the wire and in general does not coincide with the original distribution of a uniform suspension.
format	article
author	Andrey A. Kuznetsov Ivan A. Podlesnykh
author_facet	Andrey A. Kuznetsov Ivan A. Podlesnykh
author_sort	Andrey A. Kuznetsov
title	Magnetophoretic Equilibrium of a Polydisperse Ferrofluid
title_short	Magnetophoretic Equilibrium of a Polydisperse Ferrofluid
title_full	Magnetophoretic Equilibrium of a Polydisperse Ferrofluid
title_fullStr	Magnetophoretic Equilibrium of a Polydisperse Ferrofluid
title_full_unstemmed	Magnetophoretic Equilibrium of a Polydisperse Ferrofluid
title_sort	magnetophoretic equilibrium of a polydisperse ferrofluid
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/dbeec4e318044c98823ba20e23c26dcc
work_keys_str_mv	AT andreyakuznetsov magnetophoreticequilibriumofapolydisperseferrofluid AT ivanapodlesnykh magnetophoreticequilibriumofapolydisperseferrofluid
_version_	1718411107172876288

Magnetophoretic Equilibrium of a Polydisperse Ferrofluid

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