Optimization of electric field frequency on dielectrophoretic impedance measurement method for oral bacteria detection

Ryo Hamada, Junya Suehiro

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

抄録

A simple and rapid bacteria detection device for on-site evaluation of oral hygiene in hospitals and clinics was demonstrated. The developed device utilizes dielectrophoretic impedance measurement (DEPIM) method. We integrated a micro electrode chip on which bacteria were captured by dielectrophoresis (DEP), an AC voltage source to induce DEP force, and an impedance measurement circuit to a portable instrument that enables rapid and automated oral bacterial inspection in hospitals and clinics. Special considerations have been made on effects of high electrical conductivity of oral samples on DEP force and DEPIM results. It was shown experimentally and theoretically that using a higher electric field frequency for the DEP bacteria trap and the impedance measurement could realize DEPIM application to bacteria inspection from oral samples with higher conductivity. Based on these investigations, we optimized the frequency condition of the DEPIM suitable for inspecting an oral sample along with the design and development of a portable DEPIM apparatus for on-site inspection of oral bacteria.

本文言語英語
ホスト出版物のタイトルBIODEVICES 2011 - Proceedings of the International Conference on Biomedical Electronics and Devices
ページ125-129
ページ数5
出版ステータス出版済み - 7 15 2011
イベントInternational Conference on Biomedical Electronics and Devices, BIODEVICES 2011 - Rome, イタリア
継続期間: 1 26 20111 29 2011

出版物シリーズ

名前BIODEVICES 2011 - Proceedings of the International Conference on Biomedical Electronics and Devices

その他

その他International Conference on Biomedical Electronics and Devices, BIODEVICES 2011
国/地域イタリア
CityRome
Period1/26/111/29/11

All Science Journal Classification (ASJC) codes

  • 生体医工学

フィンガープリント

「Optimization of electric field frequency on dielectrophoretic impedance measurement method for oral bacteria detection」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル