Magnetic GMI sensor for detection of biomolecules

被引：108

作者：

Chiriac, H ^{[1
]}

Tibu, M ^{[1
]}

Moga, AE ^{[1
]}

Herea, DD ^{[1
]}

机构：

[1] Natl Inst Res & Dev Tech Phys, Iasi 700050, Romania

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2005年 / 293卷 / 01期

关键词：

magnetic sensor; giant magnetoimpedance; detection of biomolecules; cobalt microspheres; CoFeSiB wire; polystyrene;

D O I：

10.1016/j.jmmm.2005.02.043

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A magnetic sensor based on the giant magnetoimpedance (GMI) effect for the detection of biomolecules was made with a CoFeSiB amorphous magnetic microwire as sensing element. Using soft ferromagnetic cobalt microparticles and field sensitivities of the impedance of about 2.5%/A m(-1) in the very low field region (less than 200 A m(-1)) at frequencies close to 10MHz, a highly sensitive response was measured, appropriate for the detection of low biomolecule concentrations. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：671 / 676

页数：6

共 8 条

[1] A biosensor based on magnetoresistance technology [J].