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Magnetostrictive Microcantilever as Micro-Biosensor Platform

Published online by Cambridge University Press:  01 February 2011

Suiqiong Li
Affiliation:
Materials Research and Education Center, Auburn University, Auburn, AL 36849, U.S.A.
Zhimin Li
Affiliation:
Materials Research and Education Center, Auburn University, Auburn, AL 36849, U.S.A.
Lisa Orona
Affiliation:
Materials Research and Education Center, Auburn University, Auburn, AL 36849, U.S.A.
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Abstract

In this paper, a novel micro-biosensor platform - magnetostrictive microcantilever (MSMC) - is reported. The resonance behavior and the sensitivity of MSMC as sensor platform were characterized and compared to the theoretical calculation. The detection of yeast cells using the biosensor made of MSMC was reported. The results demonstrate the feasibility of MSMC as a high performance biosensor platform. Compare to current microcantilevers, which is widely considered as the state-of-art sensor platform, the MSMCs have following advantages: 1) remote/wireless driving and sensing; 2) easy to fabricate. More importantly, it is experimentally found that the quality merit factor (Q value) of MSMC can reach more than 250, which is much higher than other cantilevers.

Type
Research Article
Copyright
Copyright © Materials Research Society 2005

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