Modelling of a Piezoelectric Polymer Film System for Biosensing Applications

Paulo Inácio; J.N. Marat-Mendes; Eugen R. Neagu; C.J. Dias

doi:10.4028/www.scientific.net/MSF.636-637.1206

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HomeMaterials Science ForumMaterials Science Forum Vols. 636-637Modelling of a Piezoelectric Polymer Film System...

Modelling of a Piezoelectric Polymer Film System for Biosensing Applications

Abstract:

Most piezoelectric gravimetric biosensors are based on quartz crystal microbalances or surface acoustic wave devices. In this paper we describe a polymer film system, made of piezoelectric polyvinylidene difluoride (PVDF) and the Immobilon-P membrane (porous PVDF), for biosensing applications. In operation a film is accommodated in a flow cell and connected to an electronic circuit, constituting an oscillatory resonant device; the output signal is its resonance frequency. This device successfully detected the binding between bovine IgG and bovine anti-IgG. Work on the modelling of this film system is presented. Two different approaches are being considered: the finite element method (FEM) and the ABCD matrices. Results comparing theoretical and experimental data are presented.

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Periodical:

Materials Science Forum (Volumes 636-637)

Pages:

1206-1211

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.636-637.1206

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Online since:

January 2010

Authors:

Paulo Inácio, J.N. Marat-Mendes, Eugen R. Neagu, C.J. Dias

Keywords:

Immunosensors, Piezoelectricity, Polyvinylidene Difluoride (PVDF)

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References

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