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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Loureiro, J. Fermon, C. Pannetier-Lecoeur, M. Arrias, G. Ferreira, R. Cardoso, S. Freitas, P.P. |
| Copyright Year | 1965 |
| Abstract | An integrated device including microfluidic channels and incorporated magnetoresistive spin valve sensors has been developed and used to detect single magnetic bead motion at cm/s velocities. The sensitivity of the system is high enough to determine the magnetic orientation, the flowing height and the speed of each particle for velocities between 10-23 mm/s and the counting capability of the device is fully working for this range of velocities and below this limit. Sensor signals (between 3-100 muVp-p) correspond to bead moments at different directions indicating a physical rotation of the beads, and a slow response (seconds) of the bead moment to magnetizing field changes. Subsequent magnetic characterization of the micron-sized beads indicates that they are composed of strongly interacting magnetic nanoparticles. |
| Sponsorship | IEEE Magnetics Society |
| Starting Page | 4873 |
| Ending Page | 4876 |
| Page Count | 4 |
| File Size | 757288 |
| File Format | |
| ISSN | 00189464 |
| Volume Number | 45 |
| Issue Number | 10 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2009-10-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Magnetoresistance Microfluidics Magnetic separation Magnetic sensors Magnetic devices Nanoscale devices Sensor arrays Motion detection Spin valves Sensor phenomena and characterization microfluidics Chip-cytometer magnetic beads magnetoresistive sensors |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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