Title :
Dynamic Sensing of Magnetic Nanoparticles in Microchannel Using GMI Technology
Author :
Fodil, K. ; Denoual, M. ; Dolabdjian, C. ; Harnois, M. ; Senez, V.
Author_Institution :
ENSICAEN, Univ. de Caen Basse Normandie et ENSICAEN, Caen, France
Abstract :
This paper presents the detection of magnetic nanoparticles flowing into a microchannel using giant magnetic impedance (GMI) microwire sensor made up of CoFeSiBNb alloy (40 μm diameter and 1 cm long wire). Detection tests were performed using UltraSmall Particles of Iron Oxyde (USPIO) with diameter of 20 nm. Detection of volume of 180 nl with a concentration of 18 mmol (Fe)/l and flow rate of 260 nl/s was performed. Such type of measurement can find application in biomedical and clinical diagnosis for in vivo noninvasive detection.
Keywords :
boron alloys; chemical sensors; cobalt alloys; giant magnetoresistance; iron alloys; magnetic particles; magnetic sensors; magnetoresistive devices; microsensors; nanosensors; niobium alloys; silicon alloys; ίow rate; CoFeSiBNb; GMI technology; biomedical diagnosis; clinical diagnosis; dynamic sensing properties; giant magnetic impedance microwire sensor; in vivo noninvasive detection; magnetic nanoparticles; microchannel; size 20 nm; size 40 mum; ultrasmall particles; Iron; Magnetic resonance imaging; Magnetization; Magnetostatics; Microchannel; Nanoparticles; Saturation magnetization; Giant magnetoimpedance microwire (GMI); magnetic nanoparticles; microchannel fluidic;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2012.2218797
