Magnetoresistive Biosensors for Direct Detection of Magnetic Nanoparticle Conjugated Biomarkers on a Chip

H. T. Huang, P. Garu, C. H. Li, W. C. Chang, B. W. Chen, S. Y. Sung, C. M. Lee, J. Y. Chen, T. F. Hsieh, W. J. Sheu, H. Ouyang, W. C. Wang, C. R. Chang, C. L. Wang, M. S. Hsu, Z. H. Wei

Research output: Contribution to journalReview articlepeer-review

37 Citations (Scopus)

Abstract

In this review, we introduce various magnetic biosensors that have been developed. We first explain the advantages of magnetic biosensing and their general operating principles as well as the biolabeling technique for magnetic nanoparticles. Next, we focus on magnetoresistive biosensing technologies because magnetoresistive biosensors will be an essential development direction due to the demand for miniaturization and portable lab-on-a-chip devices. The magnetoresistive effects employed in biosensing include anisotropic magnetoresistance, giant magnetoresistance and tunneling magnetoresistance. In addition to magnetoresistive sensors, the advantages and disadvantages of some nonmagnetoresistive magnetic biosensors are discussed and compared. Finally, we introduce research on integrating magnetic biosensors into the microfluidic laboratory-on-a-chip systems and comment on future development trends.

Original languageEnglish
Article number1940002
JournalSPIN
Volume9
Issue number2
DOIs
Publication statusPublished - Jun 1 2019

Keywords

  • magnetic nanoparticles
  • Magnetoresistive biosensors
  • microfluidic laboratory-on-chip system

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

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