書誌事項
- タイトル別名
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- Sensitivity Improvement of Dielectrophoretic Impedance Measurement by Bacteria Concentration using Negative Dielectrophoresis
- マケ ノ ユウデン エイドウリョク ニ ヨル サイキン ノウシュク オ リヨウ シタ ユウデン エイドウ インピーダンス ケイソクホウ ノ コウカンドカ
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Dielectrophoretic impedance measurement (DEPIM) is a method to detect bacteria in an aqueous solution. DEPIM consists of two simultaneous processes: dielectrophoretic trapping of the target bacteria onto a microelectrode and measurement of impedance change caused by trapping bacteria. In this study, a new bacterial concentration process was combined with DEPIM to improve its sensitivity. The concentration process was based on negative dielectrophoresis of bacteria caused by specific configuration of parallel electrodes. A ditched dielectric thin layer deposited on one of the parallel electrodes causes non-uniform electric field resulting in occurring negative dielectrophoresis. Two electrode configurations, one is for the bacteria concentration and the other is for DEPIM, were fabricated in a microchannel. As a result, the detection sensitivity of DEPIM increased about 1.6 times by combining the concentration.
収録刊行物
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- 電気学会論文誌Ｅ（センサ・マイクロマシン部門誌）
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電気学会論文誌Ｅ（センサ・マイクロマシン部門誌） 136 (5), 148-152, 2016
一般社団法人 電気学会
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詳細情報 詳細情報について
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- CRID
- 1390282679439291904
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- NII論文ID
- 130005149050
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- NII書誌ID
- AN1052634X
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- ISSN
- 13475525
- 13418939
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- NDL書誌ID
- 027423677
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可