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Focusing and sorting of ellipsoidal magnetic particles in microchannels
- Source :
- Phys. Rev. Lett. 119, 198002 (2017)
- Publication Year :
- 2017
-
Abstract
- We present a simple method to control the position of ellipsoidal magnetic particles in microchannel Poiseuille flow using a static uniform magnetic field. The magnetic field is utilized to pin the particle orientation, and the hydrodynamic interactions between ellipsoids and channel walls allow control of the transverse position of the particles. We employ a far-field hydrodynamic theory and simulations using the boundary element method and Brownian dynamics to show how magnetic particles can be focussed and segregated by size and shape. This is of importance for particle manipulation in lab-on-a-chip devices.
- Subjects :
- Condensed Matter - Soft Condensed Matter
Physics - Fluid Dynamics
Subjects
Details
- Database :
- arXiv
- Journal :
- Phys. Rev. Lett. 119, 198002 (2017)
- Publication Type :
- Report
- Accession number :
- edsarx.1705.03665
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevLett.119.198002