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

Kurlyandskaya, G. V.; Sánchez, M. L.; Hernando, B.; Prida, V. M.; Gorria, P.; Tejedor, M.
May 2003
Applied Physics Letters;5/5/2003, Vol. 82 Issue 18, p3053
Academic Journal
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.


Related Articles

  • Anisotropic scattering of polarized light in a ferrofluid layer. Skripal’, A. V.; Usanov, D. A. // Technical Physics Letters;Sep97, Vol. 23 Issue 9, p659 

    Previously unknown effects wherein the scattering of plane-polarized light in a ferrofluid layer depends on the orientation of the electric field of the polarized radiation relative to the direction of the applied magnetic field are found experimentally, and their physical nature is explained.

  • Magnetic field induced concentration gradients in magnetic nanoparticle suspensions: Theory and experiment. Erb, Randall M.; Sebba, David S.; Lazarides, Anne A.; Yellen, Benjamin B. // Journal of Applied Physics;Mar2008, Vol. 103 Issue 6, p063916 

    An approach for studying steady-state nanoparticle concentration gradients arising in magnetic nanoparticle suspensions in response to strong magnetic field gradient is presented. The experimental approach makes use of microscopic optical absorption measurements of ferrofluid interacting with...

  • Mo¨ssbauer spectra of ferrofluids characterized using a many state relaxation model for superparamagnets. van Lierop, J.; Ryan, D. H. // Journal of Applied Physics;5/1/2000, Vol. 87 Issue 9, p6277 

    Using a many-state relaxation formalism and combining it with an accurate expression for the relaxation time of single-domain ferromagnetic particles and a log-normal size distribution we are able to fit Mo¨ssbauer spectra which span temperatures from where a pure hyperfine field distribution...

  • Quantum tunneling of magnetization in single domain particles. Tejada, J.; Balcells, Ll.; Linderoth, S.; Perzynski, R.; Rigau, B.; Barbara, B.; Bacri, J. C. // Journal of Applied Physics;5/15/1993, Vol. 73 Issue 10, p6952 

    Presents a study of the magnetic relaxation of several ferrofluids composed of particles. Expression for the predicted relaxation law for the intensity of magnetization; Content of the ferrofluid samples used in the study; Criteria used to study time dependence of the magnetization.

  • Dynamics of self-organization in a thin layer of a magnetic fluid placed in a constant electric field. Kozhevnikov, V.; Chuenkova, I.; Danilov, M.; Yastrebov, S. // Technical Physics;Jul2006, Vol. 51 Issue 7, p946 

    Structuring in the form of rotating rings, which has not been observed previously in magnetic fluids, is revealed, and the parameters of these structures are determined. Also, the evolution of vortices in a magnetic fluid layer is traced. The electrical properties of the layer exposed to a...

  • Polarized neutron scattering of D2O-based magnetic fluids (depolarization). Taketomi, S.; Itoh, S.; Endoh, Y.; Ogawa, S.; Miyajima, H.; Chikazumi, S. // Journal of Applied Physics;11/15/1988, Vol. 64 Issue 10, p5849 

    Presents a study which investigated polarized neutron scattering of D[sub2]O-based magnetic fluids. Method of the study; Results and discussion; Conclusion.

  • Simulation Study on Slow Dynamics in Magnetic Fluids. Okada, M.; Enomoto, Y. // AIP Conference Proceedings;2004, Vol. 708 Issue 1, p781 

    We present our computer simulation results on the slow dynamics in magnetic fluids. Magnetic fluids are modeled as an ensemble of interacting ferromagnetic nanoparticles suspended in a viscous fluid. From the Brownian dynamics simulations of the model, it is found that the origin of slow...

  • Convection of a ferrofluid in an alternating magnetic field. Belyaev, A. V.; Smorodin, B. L. // Journal of Applied Mechanics & Technical Physics;Jul2009, Vol. 50 Issue 4, p558 

    Parametric convective instability of a horizontal layer of a homogeneous ferrofluid under the action of an alternating magnetic field is studied. A case with rigid boundaries is considered. Convection thresholds are found. In an alternating magnetic field with a zero mean value, perturbations...

  • Controlled patterning of aligned self-assembled peptide nanotubes. Reches, Meital; Gazit, Ehud // Nature Nanotechnology;Dec2006, Vol. 1 Issue 3, p195 

    Controlling the spatial organization of objects at the nanoscale is a key challenge in enabling their technological application. Biomolecular assemblies are attractive nanostructures owing to their biocompatibility, straightforward chemical modifiability, inherent molecular recognition...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics