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Ferromagnetism

Ferromagnetism

Materials like iron, nickel, and cobalt consist of magnetic domains, within which the magnetic dipoles are arranged parallel to each other. The magnetic dipoles are rigidly aligned in the same direction within a domain by quantum mechanical coupling among the atoms. This coupling is so strong that even thermal agitation at room temperature cannot break it. The result is that each domain has a net dipole moment. However, some materials have weaker coupling, and are ferromagnetic at lower...

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Updated: May 10, 2026

Biofunctionalization of Magnetic Nanomaterials

Biofunctionalization of Magnetic Nanomaterials

Published on: July 16, 2020

Multifunctional ferromagnetic disks for modulating cell function.

Elina A Vitol¹, Valentyn Novosad, Elena A Rozhkova

¹Materials Science Division, Argonne National Laboratory, Argonne, IL, 60439, USA ; The Center for Nanoscale Materials, Argonne National Laboratory, Argonne, IL, 60439, USA.

IEEE Transactions on Magnetics

|June 15, 2013

Summary

This summary is machine-generated.

Ferromagnetic microdisks control cell function. Applications include cancer apoptosis induction, drug delivery, hyperthermia, and MRI imaging, advancing magnetic biomedical applications.

Keywords:

MRI biomagnetics ferromagnetic disks hyperthermia magneto-mechanical cell actuation

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Last Updated: May 10, 2026

Biofunctionalization of Magnetic Nanomaterials

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Cell Labeling and Targeting with Superparamagnetic Iron Oxide Nanoparticles

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Published on: October 19, 2015

Area of Science:

Biophysics
Materials Science
Biomedical Engineering

Background:

Magnetic particles have a history of modulating cell behavior.
They are used to study the physical properties of cells.
Ferromagnetic microdisks offer precise control over cellular functions.

Purpose of the Study:

To review methods for controlling cell function using ferromagnetic disk-shaped particles.
To explore historical and current applications of magnetic particles in cell studies.
To detail biological applications of microdisks in medicine.

Main Methods:

Review of magnetically assisted modulation techniques for cell behavior.
Analysis of magnetic particle applications in cell physical property studies.
Examination of microdisk-based biological applications.

Main Results:

Ferromagnetic microdisks enable controlled modulation of cell function.
Established applications include cancer apoptosis induction and controlled drug release.
Emerging applications encompass hyperthermia treatment and MRI imaging.

Conclusions:

Ferromagnetic microdisks are versatile tools for precise cell function control.
These particles have significant potential in cancer therapy and diagnostics.
Further research can expand their role in advanced biomedical applications.