Bacterial detection using a carbon nanotube gas sensor coupled with a microheater for ammonia synthesis by aerobic oxidisation of organic components

Junya Suehiro, N. Ikeda, A. Ohtsubo, K. Imasaka

研究成果: Contribution to journalArticle査読

7 被引用数 (Scopus)

抄録

In this study, the authors propose a new bacteria detection method using a carbon nanotube (CNT) gas sensor and a microheater, which were coupled into a Bio-MEMS (microelectromechanical systems)-type device. Bacteria were heated by the microheater in air so that ammonia (NH3) gas can be generated by the oxidation reaction of organic components of bacteria. Thus generated NH 3 gas was detected by using the CNT gas sensor, which was fabricated by dielectrophoresis (DEP) and combined with the microheater to form a small chamber. Cyclic pulsed heating operation was employed so that the CNT response to elevated temperature did not mask NH3 response. It was demonstrated that the proposed device could detect and quantify 107 bacteria cells (Escherichia coli). Possible application of DEP to trap and enrich target bacteria on the microheater was also discussed.

本文言語英語
ページ(範囲)15-22
ページ数8
ジャーナルIET Nanobiotechnology
3
2
DOI
出版ステータス出版済み - 6 11 2009

All Science Journal Classification (ASJC) codes

  • 電子材料、光学材料、および磁性材料
  • バイオテクノロジー
  • 電子工学および電気工学

フィンガープリント

「Bacterial detection using a carbon nanotube gas sensor coupled with a microheater for ammonia synthesis by aerobic oxidisation of organic components」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