Jump to main content
Jump to site search


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

Author affiliations

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

Back to tab navigation
Please wait while Download options loads

Supplementary files

Publication details

The article was received on 09 Mar 2017, accepted on 20 Apr 2017 and first published on 21 Apr 2017


Article type: Paper
DOI: 10.1039/C7SM00488E
Citation: Soft Matter, 2017, Advance Article
  •   Request permissions

    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, Advance Article , DOI: 10.1039/C7SM00488E

Search articles by author