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Investigation of mass sensitivity for the piezoelectric diaphragm biosensor

  • Shaokang Li
  • , Wei Ren
  • , Xiaofeng Chen
  • , Xi Yao
  • Xi'an Jiaotong University
  • Xi'an Technological University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The mass sensitivity of a piezoelectric diaphragm biosensor has been investigated. The piezoelectric diaphragm utilizing a flexural vibration mode is an acoustic wave device which can be immobilized with a bio-molecular recognition layer on its surface. The mass sensitivity of the sensor was analyzed by the approximately theoretical and FEM methods, respectively. The sensitivity formula expressed by the structural parameters and the material parameter was educed for easy computing. The procedure utilizing Rayleigh method for the analytic solution of the sensitivity was introduced. The expression was verified by using a commercial FEM software package, ANSYS. The simulations are well consistent with the theory.

Original languageEnglish
Title of host publicationPrecision Engineering and Non-Traditional Machining, PENTM 2011
Pages245-249
Number of pages5
DOIs
StatePublished - 2012
Event2011 International Conference on Precision Engineering and Non-Traditional Machining, PENTM 2011 - Xi'an, China
Duration: 9 Dec 201111 Dec 2011

Publication series

NameAdvanced Materials Research
Volume411
ISSN (Print)1022-6680

Conference

Conference2011 International Conference on Precision Engineering and Non-Traditional Machining, PENTM 2011
Country/TerritoryChina
CityXi'an
Period9/12/1111/12/11

Keywords

  • Biosensor
  • FEM
  • MEMS
  • Mass sensitivity
  • Piezoelectric diaphragm

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