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Microwire array for giant magneto-impedance detection of magnetic particles for biosensor prototype

被引：70
作者：
Chiriac, Horia
Herea, Dumitru-Daniel
Corodeanu, Sorin
机构：
[1] Natl Inst Res & Dev Tech Phys IFT, Iasi, Romania
[2] Alexandru Ioan Cuza Univ, Iasi 700506, Romania
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2007年 / 311卷 / 01期
关键词：
biosensor; magneto-impedance; microwires array; magnetic microparticle; magnetic bead;
D O I：
10.1016/j.jmmm.2006.11.207
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A new giant magneto-impedance (GMI) biosensor prototype based on a glass-coated microwires array is reported. The optimal measurement conditions and the influence of a liquid suspension of commercially available polymer-based magnetic microparticles on the magneto-impedance (MI) response of the array were studied. The relative change in MI response enlarges as the number of the active microwires increases. The highest variation of 35% was found for 10 active microwires, for a current intensity of 10 mA. Some possible applications of the biosensor prototype are outlined. (C) 2006 Elsevier B.V. All rights reserved.
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页码：425 / 428
页数：4
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