On-chip detection and separation of micro-particles using magnetized microtools driven by focused magnetic field

Shinya Sakuma, Kazuhisa Onda, Yoko Yamanishi, Fumihito Arai

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

We succeeded in powerful noncontact actuation of magnetically driven microtool (MMT) by magnetizing it and focusing magnetic field in a microfluidic chip. Novelty of this paper is summarized as follows. (1) We employed neodium powder as the main component of MMT. The density of magnetic flux was improved about 100 times larger after magnetization. (2) We fabricated a pair of magnetic sharp needles in the chip by electroplating. MMT was placed between the needles and the density of magnetic flux was improved about 3 times larger. As a result, we succeeded in powerful actuation of MMT in a chip. Drive frequency was improved about 10 times faster (up to 180 Hz). We applied it for sorting of copolymer beads in a chip. MMT is put in the microchannel. The size of the bead was measured by image processing (15 Hz). Moving frequency of the MMT was made higher than the sampling frequency of measurement and secure sorting was achieved.

本文言語English
ホスト出版物のタイトル2009 IEEE International Conference on Robotics and Automation, ICRA '09
ページ1820-1825
ページ数6
DOI
出版ステータスPublished - 2009
イベント2009 IEEE International Conference on Robotics and Automation, ICRA '09 - Kobe, Japan
継続期間: 2009 5 122009 5 17

出版物シリーズ

名前Proceedings - IEEE International Conference on Robotics and Automation
ISSN(印刷版)1050-4729

Conference

Conference2009 IEEE International Conference on Robotics and Automation, ICRA '09
国/地域Japan
CityKobe
Period09/5/1209/5/17

ASJC Scopus subject areas

  • ソフトウェア
  • 制御およびシステム工学
  • 人工知能
  • 電子工学および電気工学

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