Highly-Sensitive Magnetic Tunnel Junction Based Flow Cytometer

Selma Amara, Ride Bu, Meshal Alawein, Nouf Alsharif, Mohammed Asadullah Khan, Yan Wen, Xixiang Zhang, Jürgen Kosel, Hossein Fariborzi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Flow cytometers are important instruments for biological and biomedical analyses. These instruments are large and expensive, and researchers are continuously striving to come up with smaller, cheaper, and more energy-efficient flow cytometers. In this work, we present a highly-sensitive magnetic tunnel junction (MTJ) based flow cytometer. An externally magnetized magnetic beads labeling cells were placed above an MTJ sensor that can measure the stray field surrounding the beads. It was found that each time labeled cells pass through the sensitive area of the sensor, a peak of signal was observed. The results demonstrate a novel MTJ based flow cytometer design approach for accurate detection of magnetically labeled cells.
Original languageEnglish (US)
Title of host publication2018 IEEE International Symposium on Medical Measurements and Applications (MeMeA)
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
ISBN (Print)9781538633922
DOIs
StatePublished - Aug 20 2018

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