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Design of Microcantilever for a Biosensor

[+] Author Affiliations
Ji-Yoon Kang, Hyung-Jun Kim, Tae-Song Kim

Korea Institute of Science and Technology, Seoul, Korea

Paper No. IMECE2002-32809, pp. 595-598; 4 pages
doi:10.1115/IMECE2002-32809
From:
  • ASME 2002 International Mechanical Engineering Congress and Exposition
  • Microelectromechanical Systems
  • New Orleans, Louisiana, USA, November 17–22, 2002
  • Conference Sponsors: Microelectromechanical Systems
  • ISBN: 0-7918-3642-8 | eISBN: 0-7918-1691-5, 0-7918-1692-3, 0-7918-1693-1
  • Copyright © 2002 by ASME

abstract

We analyzed the dynamic characteristics of cantilever biosensor for the detection of disease using antibody-antigen reaction. We suggested a design guide to detect the mass of protein. The length of cantilever is the major factor among shape dimensions to affect the mass resolution and it should get smaller for the better accuracy. However this mass detection model does not explain all the experimental results, therefore we adopted the beam equation with tension. Adding the effect of tension on the shift of resonance frequency, the experimental results could be explained.

Copyright © 2002 by ASME
Topics: Design , Biosensors

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