Magnetic iron oxide nanoparticles: Synthesis and applications

Document Type

Article

Publication Date

1-1-2012

Abstract

Magnetic iron oxide nanoparticles are attracting increased attention due to their interesting properties that can be applied in a large number of applications such as catalysis and biomedicine. This paper focuses on the synthesis, characteristics, and biomedical applications of iron oxide nanoparticles. The two most common iron oxides, including magnetite and maghemite, are discussed in this study. For most of their applications, the magnetic behavior of iron oxide nanoparticles in a fluid is very important - especially, the high-gradient magnetic separation of the particles from a non-magnetic liquid medium such as blood in the human body. A two-dimensional model, which represents a slice through the center of a spherical particle in a fluid, is proposed in this study, and only the magnetic force and the drag force are taken into consideration. The magnetization of the particles is calculated by using the Langevin function, and the fluid drag force is calculated by using the Navier-Stokes equation. The trajectory function for this model is calculated and the trajectories are drawn for specific cases.

Identifier

84894552637 (Scopus)

Publication Title

Bioinspired Biomimetic and Nanobiomaterials

External Full Text Location

https://doi.org/10.1680/bbn.12.00014

e-ISSN

20459866

ISSN

20459858

First Page

229

Last Page

244

Issue

4

Volume

1

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