Portable magnetoelastic biosensors

Portable magnetoelastic biosensors

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In this chapter, an overview of the ME biosensor and the current state research on this platform is given. The origin of magnetostriction and ME coupling is reviewed. This is followed by a review of the fabrication processes for the ME resonator platform and the biorecognition element. Three common resonant frequency measurement techniques are discussed. This chapter is closed with some significant findings that have resulted from this investigation on ME biosensors.

Chapter Contents:

  • 5.1 Introduction
  • 5.1.1 Magnetostriction and magnetoelastic coupling
  • 5.1.2 Magnetostrictive ribbons
  • 5.1.3 Magnetostrictive microcantilevers
  • 5.1.4 Comparison to other AW devices
  • 5.2 ME biosensors
  • 5.2.1 Commercially available magnetostrictive ribbons
  • 5.2.2 Microfabrication
  • 5.2.3 Biomolecular recognition element
  • 5.3 Measurement techniques
  • 5.3.1 Swept frequency measurement technique
  • 5.3.2 Transient response measurement technique
  • 5.3.3 Flat coil measurement technique
  • 5.4 Additional results
  • 5.4.1 Detection in the presence of masking bacteria
  • 5.4.2 Detection in liquid foods
  • 5.5 Outlook
  • References

Inspec keywords: reviews; biosensors; portable instruments; magnetostrictive devices; magnetoelastic effects; magnetostriction

Other keywords: biorecognition element; overview; resonant frequency measurement; magnetostriction; portable magnetoelastic biosensors; magnetoelastic resonator; magnetoelastic coupling

Subjects: Reviews and tutorial papers; resource letters; Biosensors; Bench and portable instruments; Magneto-acoustic, magnetoresistive, magnetostrictive and magnetostatic wave devices; Biosensors

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