Dielectrophoretic measurement of bacterial motor characteristics

Masao Washizu, Yuichi Kurahashi, Hirokazu Iochi, Osamu Kurosawa, Sin ichi Aizawa, Seishi Kudo, Yukio Magariyama, Hirokazu Hotani

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Novel methods of the bacterial motor characteristic measurement using AC field effects in microfabricated electrode system are presented. Two method are developed in this paper. One is the measurement of the external force-to-velocity (F-v) characteristics of swimming bacteria. Electrostatic orientation of bacteria parallel to the field lines is used to guide the bacterial locomotion along a line. Dielectrophoresis is used to apply external force both forward or backward to the swimming bacteria, and by measuring the velocity of the locomotion, the F-v curve is obtained. The other is the measurement of torque-to-speed (T-ω) characteristics of the motor. Electrorotation is used to apply external torque to the tethered cells, and by changing the applied torque to the tethered cells, and by changing the applied torque and measuring the rotation speed, T-ω curves obtained.

Original languageEnglish
Title of host publication91 IEEE Ind Appl Soc Annu Meet
PublisherPubl by IEEE
Pages665-673
Number of pages9
ISBN (Print)0780304535
Publication statusPublished - 1992 Jan 1
Event1991 IEEE Industry Applications Society Annual Meeting Part 1 (of 2) - Dearborn, MI, USA
Duration: 1991 Sep 281991 Oct 4

Publication series

Name91 IEEE Ind Appl Soc Annu Meet

Other

Other1991 IEEE Industry Applications Society Annual Meeting Part 1 (of 2)
CityDearborn, MI, USA
Period91/9/2891/10/4

ASJC Scopus subject areas

  • Engineering(all)

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