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Cylindrical micro touch sensor with a piezoelectric thin film for microbial separation

Published online by Cambridge University Press:  14 June 2005

Fumihito Arai ,
Kouhei Motoo ,
Paul G. R. Kwon ,
Toshio Fukuda ,
Akihiko Ichikawa  and
Tohoru Katsuragi
Fumihito Arai
Affiliation:
Department of Micro System Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603 (Japan). http://www.mein.nagoya-u.ac.jp, E-mail: arai@mein.nagoya-u.ac.jp PRESTO, JST.
Kouhei Motoo
Affiliation:
Department of Micro System Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603 (Japan). http://www.mein.nagoya-u.ac.jp, E-mail: arai@mein.nagoya-u.ac.jp
Paul G. R. Kwon
Affiliation:
Department of Micro System Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603 (Japan). http://www.mein.nagoya-u.ac.jp, E-mail: arai@mein.nagoya-u.ac.jp
Toshio Fukuda
Affiliation:
Department of Micro System Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603 (Japan). http://www.mein.nagoya-u.ac.jp, E-mail: arai@mein.nagoya-u.ac.jp
Akihiko Ichikawa
Affiliation:
Department of Micro System Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603 (Japan). http://www.mein.nagoya-u.ac.jp, E-mail: arai@mein.nagoya-u.ac.jp
Tohoru Katsuragi
Affiliation:
Nara Institute of Science and Technology (Japan).
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Abstract

Isolation and separation of the target microbe or cell from a large heterogeneous population is quite important. We propose a new touch sensor that is used for the separation of the target microbe with a pipette. This sensor is sensitive enough to protect the fragile pipette tip from abrupt collision. Using this sensor, we developed a novel separation system for screening a target microorganisms from the randomly distributed samples in the dish with the local viscosity control of the thermosensitive hydrogel. With this system, the target yeast cell was extracted successfully.

Keywords

MicrosensorTouch sensorPiezoelectric thin filmPipetteSeparationScreeningMicroorganism
Type
Research Article
Information
Robotica , Volume 23 , Issue 4 , July 2005 , pp. 441 - 448
Copyright
© 2005 Cambridge University Press

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