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Biosensor Based on Giant Magnetoresistance Material
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Author(s): Mitra Djamal (Institut Teknologi Bandung, Indonesia), Ramli (RamliInstitut Teknologi Bandung & Universitas Negeri Padang, Indonesia), Yulkifli (YulkifliInstitut Teknologi Bandung & Universitas Negeri Padang, Indonesia), Suprijadi (SuprijadiInstitut Teknologi Bandung, Indonesia)and Khairurrijal (KhairurrijalInstitut Teknologi Bandung, Indonesia)
Copyright: 2012
Pages: 16
Source title:
Emerging Communication Technologies for E-Health and Medicine
Source Author(s)/Editor(s): Joel J.P.C. Rodrigues (Senac Faculty of Ceará, Fortaleza-CE, Brazil; Instituto de Telecomunicações, Portugal)
DOI: 10.4018/978-1-4666-0909-9.ch008
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Abstract
In recent years, giant magnetoresistance (GMR) sensors have shown a great potential as sensing elements for biomolecule detection. The resistance of a GMR sensor changes with the magnetic field applied to the sensor, so that a magnetically labeled biomolecule can induce a signal. Compared with the traditional optical detection that is widely used in biomedicine, GMR sensors are more sensitive, portable, and give a fully electronic readout. In addition, GMR sensors are inexpensive and the fabrication is compatible with the current VLSI (Very Large Scale Integration) technology. In this regard, GMR sensors can be easily integrated with electronics and microfluidics to detect many different analytes on a single chip. In this article, the authors demonstrate a comprehensive review on a novel approach in biosensors based on GMR material.
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