Issue 20, 2017

Manipulation of magnetic nanorod clusters in liquid by non-uniform alternating magnetic fields

Abstract

It is discovered that a non-uniform alternating magnetic field can induce a translational motion of an anisotropic magnetic particle or cluster near a surface. Unlike a permanent magnet pulling a magnetic particle, the particle moves away from the magnetic source with a periodic fluctuation in its trajectory that varies with a frequency that is twice that of the field frequency. The moving speed can be tuned by varying the magnetic field strength and gradient, its alternating frequency, and the particle size. A hydrodynamic model is developed that can qualitatively explain all of the phenomena observed. Such a simple particle manipulation method has a great potential in applications such as cell biology and microfluidics.

Graphical abstract: Manipulation of magnetic nanorod clusters in liquid by non-uniform alternating magnetic fields

Supplementary files

Article information

Article type
Paper
Submitted
09 Mar 2017
Accepted
20 Apr 2017
First published
21 Apr 2017

Soft Matter, 2017,13, 3750-3759

Manipulation of magnetic nanorod clusters in liquid by non-uniform alternating magnetic fields

W. Huang, F. Yang, L. Zhu, R. Qiao and Y. Zhao, Soft Matter, 2017, 13, 3750 DOI: 10.1039/C7SM00488E

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements