Title :

Microfluidic microsystem for magnetic sensing of nanoparticles with giant magneto-impedance technology

Author(s) :

Denoual, Matthieu [Auteur]
Equipe Electronique - Laboratoire GREYC - UMR6072
Harnois, M. [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Saez, Sébastien [Auteur]
Equipe Electronique - Laboratoire GREYC - UMR6072
Dolabdjian, Christophe [Auteur]
Equipe Electronique - Laboratoire GREYC - UMR6072
Senez, V. [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]

Conference title :

16th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS'11

City :

Beijing

Country :

Chine

Start date of the conference :

2011

Publication date :

2011

HAL domain(s) :

Sciences de l'ingénieur [physics]/Electromagnétisme

English abstract : [en]

We have fabricated a microfluidic microsystem integrating a Giant Magneto-Impedance wire sensor that successfully detected the passage of magnetic nanoparticules in liquid medium. Giant Magneto-Impedance microwire sensors ...
Show more >We have fabricated a microfluidic microsystem integrating a Giant Magneto-Impedance wire sensor that successfully detected the passage of magnetic nanoparticules in liquid medium. Giant Magneto-Impedance microwire sensors consisted in CoFeSiBNb alloy, 40 μm diameter and 1 cm long wires. By magnetizing the magnetic nanoparticles in the liquid perpendicularly to the sensitive axis of the Giant Magneto-Impedance microwire sensor, we have observed magneto-impedance signal variations induced by the magnetic dipole field from the magnetic nanoparticles. A peak detector was used to measure the voltage signal due to the magneto-impedance variations. The voltage signal was subsequently demodulated by a lock-in amplifier.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

Collections :

• Institut d'Électronique, de Microélectronique et de Nanotechnologie (IEMN) - UMR 8520

Source :

Harvested from HAL