誘電泳動デバイスにおける電極構造と捕捉粒子数の数値相関検証

カテゴリ: 論文誌(論文単位)

グループ名: 【E】センサ・マイクロマシン部門

発行日: 2014/07/01

タイトル(英語): Numerical Investigation of the Correlation between Electrode Structure and Number of Captured Particles in a Dielectrophoretic Device

著者名: 青木　玲仁（首都大学東京），白井　直機（首都大学東京），内田　諭（首都大学東京），杤久保　文嘉（首都大学東京）

著者名(英語): Ryoto Aoki (Tokyo Metropolitan University), Naoki Shirai (Tokyo Metropolitan University), Satoshi Uchida (Tokyo Metropolitan University), Fumiyoshi Tochikubo (Tokyo Metropolitan University)

キーワード: 誘電泳動，数値シミュレーション，微粒子，電極構造，捕捉粒子数，有効領域比　　dielectrophoresis，numerical simulation，micro particle，electrode structure，number of captured particles，effective region ratio

要約(英語): For strict application of food hygiene regulation such as hazard analysis - critical control point system, the development of rapid and simple measurement scheme for biological particles is essential. Recently, a hybrid method using dielectrophoretic manipulation and micro fluidic operation has attracted attention for the bioparticle detection. However, the influence of electrode structure on the dielctrophoretic force has not been fully understood. For effective design of dielectrophoretic devices, it is important to investigate quantitatively the capture characteristics. In the present work, we numerically simulated the particle dynamics in the capture region of a dielectrophoretic micro device with interdigitated electrodes. The dependence of dielctrophoretic force on the electrode width and gap length showed that there was the maximum of capture height of particles for adequate electrode structure. Furthermore, the number of captured particles was accurately evaluated in consideration of the effective region ratio. Under typical condition, the number of captured particles almost agreed with the experimental result.

本誌: 電気学会論文誌E（センサ・マイクロマシン部門誌） Vol.134 No.7 （2014） 特集：フィジカルセンサの基礎

本誌掲載ページ: 235-240 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejsmas/134/7/134_235/_article/-char/ja/