Magnetic biosensors for genetic screening of cystic fibrosis

  • L. Lagae
  • , R. Wirix-Speetjens
  • , C. X. Liu
  • , W. Laureyn
  • , G. Borghs
  • , S. Harvey
  • , P. Galvin
  • , H. A. Ferreira
  • , D. L. Graham
  • , P. P. Freitas
  • , L. A. Clarke
  • , M. D. Amaral

Research output: Contribution to journalArticlepeer-review

Abstract

The paper reports on the development of a magnetic biosensing platform for genetic analysis. The sensing technique is based on the on-chip manipulation of magnetically labelled biomolecules by the magnetic field gradient force created by current-carrying conductors; on biomolecular reactions such as the binding of complementary DNA material; and on the detection of the fringe field of the magnetic label by a magnetoresistive spin valve sensor. Different experiments will demonstrate the advantages, difficulties, prospects and potential of the combination of magnetic bead manipulation and detection on a single microchip. Early detection of DNA coding for the cystic fibrosis (CF) gene is used as a model system for proof-of-concept of the magnetic DNA biosensor platform.

Original languageEnglish
Pages (from-to)393-400
Number of pages8
JournalIEE Proceedings: Circuits, Devices and Systems
Volume152
Issue number4
DOIs
Publication statusPublished - Aug 2005

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