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Journal of Shanghai University（Natural Science Edition）

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Nano-Thermomechanical Deformation of a Microcantilever Laminated Beam in Label-Free Biodetection

XING Jing-jing1,ZHANG Neng-hui1，2,ZHENG Jin-3   

  1. 1. Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072, China;
    2. School of Sciences, Shanghai University, Shanghai 200444, China;
    3. School of Mechatronial Engineering and Automation, Shanghai University, Shanghai 200072, China

  • Received:2005-08-31 Revised:1900-01-01 Online:2006-06-30 Published:2006-06-30
  • Contact: ZHANG Neng-hui1，2

Cited

1

Abstract:

Abandoning the uniaxial stress assumption, a continuum laminated beam model in terms of deflection induced by labelfree biodetections is set up to study nanomechanical behaviors of a biodetector subjected to hybridization surface stresses and thermal loads. Linear and uniform temperature fields are used separately to simulate transient and steady temperature distributions in biochemical reactions in order to explain the bimetallic effects in Fritz's experiments on DNA hybridizations.

Key words: hybridization surface stress, microcantilever laminated beam

, nano-thermomechanical deformation,

label-free biodetection