Magnetic biosensor system to detect biological targets

Fuquan Li, Chinthaka Pasan Gooneratne, Jürgen Kosel

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

3 Scopus citations

Abstract

Magneto-resistive sensors in combination with magnetic beads provide sensing platforms, which are small in size and highly sensitive. These platforms can be fully integrated with microchannels and electronics to enable devices capable of performing complex tasks. Commonly, a sandwich method is used that requires a specific coating of the sensor's surface to immobilize magnetic beads and biological targets on top of the sensor. This paper concerns a micro device to detect biological targets using magnetic concentration, magnetic as well as mechanical trapping and magnetic sensing. Target detection is based on the size difference between bare magnetic beads and magnetic beads with targets attached. This method remedies the need for a coating layer and reduces the number of steps required to run an experiment. © 2012 IEEE.
Original languageEnglish (US)
Title of host publication2012 International Conference on Electromagnetics in Advanced Applications
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages1238-1241
Number of pages4
ISBN (Print)9781467303354
DOIs
StatePublished - Sep 2012

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