Jump to main content
Jump to site search
Access to RSC content Close the message box

Continue to access RSC content when you are not at your institution. Follow our step-by-step guide.


Issue 3, 2017
Previous Article Next Article

Magnetic separation of microparticles by shape

Author affiliations

Abstract

Accurate separation of microparticles by shape has diverse applications in biology and biotechnology, but is a significant challenge in separation science and engineering. We demonstrate a simple and effective mechanism that can achieve shape-based separation of magnetic particles in microscale flows. In this method, a uniform magnetic field is applied perpendicularly to the flow direction, and causes shape-dependent lateral migration of the particles. Using high-speed imaging, we studied the rotational dynamics of the ellipsoidal particles. It is found that the lateral migration is correlated with the asymmetric rotation of the particles. Different from existing techniques that use magnetic forces, our method uses shape-dependent magnetic torque but zero magnetic force.

Graphical abstract: Magnetic separation of microparticles by shape

Back to tab navigation

Supplementary files

Article information


Submitted
07 Nov 2016
Accepted
12 Dec 2016
First published
12 Dec 2016

Lab Chip, 2017,17, 401-406
Article type
Communication

Magnetic separation of microparticles by shape

R. Zhou, F. Bai and C. Wang, Lab Chip, 2017, 17, 401
DOI: 10.1039/C6LC01382A

Social activity

Search articles by author

Spotlight

Advertisements