High-Speed and High-Resolution On-Chip Pumping Utilizing Asymmetric Flow Resistors

Makoto Saito, Yusuke Kasai, Hiroki Kumon, Shinya Sakuma, Fumihito Arai

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

抄録

We present a revolutionary on-chip pumping with high-speed response, high-resolution and bidirectional continuous pumping. Generally, there is a tough challenge of on-chip pumping to break through the trade-off between response time and volumetric resolution with the function of bidirectional continuous pumping. In order to confront this challenge, we propose a concept of 'asymmetric flow resistors (AFRs)' whose flow resistance is temporally changed by utilizing the spatiotemporal vortices generated by physical interaction between ultrafast flow and uniquely designed asymmetric microstructures of microchannel. Thus, we achieved an unexplored specification of on-chip pumping with resolution of 1.4 nl with the single forward-backward actuation and response time of <50 ms with continuous flow. Furthermore, we demonstrated bidirectional pumping of picking-up and dispensing of single motile microalga by using a microfluidic pipette utilizing two proposed on-chip pumps with opposite direction.

本文言語英語
ホスト出版物のタイトル33rd IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2020
出版社Institute of Electrical and Electronics Engineers Inc.
ページ135-138
ページ数4
ISBN(電子版)9781728135809
DOI
出版ステータス出版済み - 1 2020
外部発表はい
イベント33rd IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2020 - Vancouver, カナダ
継続期間: 1 18 20201 22 2020

出版物シリーズ

名前Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)
2020-January
ISSN(印刷版)1084-6999

会議

会議33rd IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2020
国/地域カナダ
CityVancouver
Period1/18/201/22/20

All Science Journal Classification (ASJC) codes

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • 機械工学
  • 電子工学および電気工学

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