Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1804221 | Journal of Magnetism and Magnetic Materials | 2007 | 7 Pages |
Abstract
A new hybrid magnetic bead separator that combines an external magnetic field with 175 μm thick current lines buried in the back side of a silicon wafer is presented. A microfluidic channel was etched into the front side of the wafer. The large cross-section of the current lines makes it possible to use larger currents and obtain forces of longer range than from thin current lines at a given power limit. Guiding of magnetic beads in the hybrid magnetic separator and the construction of a programmable microarray of magnetic beads in the microfluidic channel by hydrodynamic focusing is presented.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Kristian Smistrup, Henrik Bruus, Mikkel F. Hansen,