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Team:Alberta/References/Publications/Microelectromagnet for magnetic manipulation in lab-on-a-chip systems
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| - | Authors | + | Authors:Kristian Smistrupa, Peter T. Tangb, Ole Hansena and Mikkel F. Hansen |
| - | Journal | + | Journal of Magnetism and Magnetic Materials Volume 300, Issue 2, May 2006, Pages 418-426 |
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| + | <b>Abstract:</b> We demonstrate a simple scheme for fabrication of microelectromagnets consisting of planar spiral coils semi-encapsulated in soft magnetic yokes using conventional microfabrication techniques. The microelectromagnets are suitable for applications operating at frequencies below 250 kHz. Conventional fabrication schemes for planar microelectromagnets typically rely on five mask steps. We allow the current to flow in the soft magnetic yoke and thereby two mask steps are eliminated. We have characterized the electromagnets electrically, the results agree well with theory, and the implications arising from current flowing in the magnetic yoke are discussed. We have integrated the microelectromagnets with microfluidic channels, and demonstrated separation of commercially available magnetic beads from a fluid in a microfluidic system, i.e. a lab-on-a-chip system. | ||
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| - | '''Link:''' [http:// | + | '''Link:''' [http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TJJ-4GFN3YH-6&_user=1067472&_rdoc=1&_fmt=&_orig=search&_sort=d&_docanchor=&view=c&_searchStrId=1058191490&_rerunOrigin=google&_acct=C000051251&_version=1&_urlVersion=0&_userid=1067472&md5=a8edb9d14d3de834edac7c070f0b3cbf Science Direct] |
Latest revision as of 17:18, 21 October 2009
Authors:Kristian Smistrupa, Peter T. Tangb, Ole Hansena and Mikkel F. Hansen
Journal of Magnetism and Magnetic Materials Volume 300, Issue 2, May 2006, Pages 418-426
Abstract: We demonstrate a simple scheme for fabrication of microelectromagnets consisting of planar spiral coils semi-encapsulated in soft magnetic yokes using conventional microfabrication techniques. The microelectromagnets are suitable for applications operating at frequencies below 250 kHz. Conventional fabrication schemes for planar microelectromagnets typically rely on five mask steps. We allow the current to flow in the soft magnetic yoke and thereby two mask steps are eliminated. We have characterized the electromagnets electrically, the results agree well with theory, and the implications arising from current flowing in the magnetic yoke are discussed. We have integrated the microelectromagnets with microfluidic channels, and demonstrated separation of commercially available magnetic beads from a fluid in a microfluidic system, i.e. a lab-on-a-chip system.
Link: Science Direct
