TITLE

Giant-magnetoimpedance-based sensitive element as a model for biosensors

AUTHOR(S)
Kurlyandskaya, G. V.; Sánchez, M. L.; Hernando, B.; Prida, V. M.; Gorria, P.; Tejedor, M.
PUB. DATE
May 2003
SOURCE
Applied Physics Letters;5/5/2003, Vol. 82 Issue 18, p3053
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We study the magnetoimpedance effect, using a Co[sub 67]Fe[sub 4]MO[sub 1.5]Si[sub 16.5]B[sub 11] amorphous, ribbon-based sensitive element, in the presence of a commercial Ferrofluid® liquid thin layer covering the ribbon surface. The magnetoimpedance response is clearly dependent on the presence of the magnetic ferroliquid, the value of the applied magnetic field, and the parameters of the driving current. The magnetoimpedance-based prototype is proposed as a biosensor with high sensitivity to the fringe field produced by magnetic nanoparticles. A special advantage of this sensor is its high stability to chemical aggressive media; hence, it can be used for in sim measurements during fabrication of biomaterials with a high level of affinity and specificity with nanoparticles employed as bimolecular labels.
ACCESSION #
9630221

 

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