标题：Highly-Sensitive Magnetic Tunnel Junction Based Flow Cytometer
作者：Amara, Selma ;Bu, Ride ;Alawein, Meshal ;Alsharif, Nouf ;Khan, Mohammed Asadullah ;Wen, Yan ;Zhang, Xixiang ;Kosel, Jurgen ;Fariborzi, Hossein
作者机构：[Amara, Selma ;Bu, Ride ;Alawein, Meshal ;Alsharif, Nouf ;Khan, Mohammed Asadullah ;Wen, Yan ;Zhang, Xixiang ;Kosel, Jurgen ;Fariborzi, Hossein ] King 更多
会议名称：13th IEEE International Symposium on Medical Measurements and Applications, MeMeA 2018
会议日期：11 June 2018 through 13 June 2018
来源：MeMeA 2018 - 2018 IEEE International Symposium on Medical Measurements and Applications, Proceedings
关键词：Biosensor; flow cytometer; magnetic bead; magnetic tunnel junction; PDMS microchannel
摘要：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. © 2018 IEEE.