Size-dependent particle filteration using magnetically driven microtool and centrifugal force in microchip

H. Maruyama, S. Sakuma, Y. Yamanishi, F. Arai

研究成果: Conference article査読

3 被引用数 (Scopus)

抄録

We succeeded in size-dependent filtration of microparticles by rotation of magnetically driven microtool (MMT) and centrifugal force in a microchip. Novelties of this paper are summarized as follows. (1) Filtering efficiency was improved than filtration by solely centrifugal force by MMT rotation. (2) Clogging of microparticles was avoided by swirling flow generated by rotation of3D-MMT with fins. (3) This filtration is robust against pressure fluctuation in a microchip by mechanical particle separation using internal walls. Microparticles with different sizes flow in spiral microchannels and are separated according to their sizes by pass through under each sidewall of microchannels by centrifugal force. MMT is set inside the microchamber and rotated by external magnetic force. Rotation ofMMT avoids the clogging of the microparticles and enhances the sorting efficiency. We demonstrated filtration of the microparticles in a microchip using 3D-MMT rotation and centrifugal force.

本文言語English
論文番号4805397
ページ(範囲)375-378
ページ数4
ジャーナルProceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)
DOI
出版ステータスPublished - 2009
イベント22nd IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2009 - Sorrento, Italy
継続期間: 2009 1 252009 1 29

ASJC Scopus subject areas

  • 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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