Magnetic microbead detection using the planar Hall effect

被引：66

作者：

Ejsing, L

Hansen, MF

Menon, AK

Ferreira, HA

Graham, DL

Freitas, PP

机构：

[1] Tech Univ Denmark, Dept Micro & Nanotechnol, DK-2800 Lyngby, Denmark

[2] INESC, MN, P-1000029 Lisbon, Portugal

来源：

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

关键词：

Hall effect (planar); micromer-M; magnetic sensor; biosensor; permalloy (Ni80Fe20); MnIr (Mn76Ir24); detection of microspheres;

D O I：

10.1016/j.jmmm.2005.02.071

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Magnetic sensors based on the planar Hall effect of exchanged-biased permalloy have been fabricated and characterized. It is demonstrated that the sensors are feasible for detecting just a few commercial 2.0 mu m magnetic beads commonly used for bioseparation (Micromer-M, Micromod, Germany) and that the sensor sense current is sufficient to generate a signal from the beads. (c) 2005 Elsevier B.V. All rights reserved.

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页码：677 / 684

页数：8

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