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BPN649: Magnetic Particle Flow Cytometer

Project ID BPN649
Website
Start Date Thu 2011-Aug-18 11:17:59
Last Updated Thu 2015-Feb-12 14:02:04
Abstract The complex susceptibility of magnetic materials show a frequency dependent behavior. The goal of the work over the last six months has been to measure the susceptibility for diff erent magnetic materials. A coplanar waveguide is designed on a Duroid substrate. The waveguide is connected to a spiral inductor of nominal value 4.5 nH. These devices are wire bonded to the CPW and measurements are carried out using a network analyzer. The susceptibility is extracted from the measured S-parameters. Measurement results show a clear difference between the susceptibility curves of ferrites of cobalt, manganese and nickel. These measurements corroborate the design of a CMOS chip for detection of magnetically labelled cells enabling a point of care cytometer.
Status Continuing
Funding Source BSAC Member Fees
IAB Research Area BioMEMS
Researcher(s) Pramod Murali, Vikram Iyer
Advisor(s) Bernhard E. Boser
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