Polymer-based magnetically driven microtool for on-chip particle sorting

Shinya Sakuma, Yoko Yamanishi, Fumihito Arai

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

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. Figure 1 shows concept of sorting chip. MMT is put in the microchannel. Figure 2 shows principle of actuation method. 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.

Original languageEnglish
Title of host publication2008 International Symposium on Micro-NanoMechatronics and Human Science, MHS 2008, with Symposium on "COE for Education and Research of Micro-Nano Mechatronics"
Pages231-236
Number of pages6
DOIs
Publication statusPublished - 2008 Dec 1
Event2008 International Symposium on Micro-NanoMechatronics and Human Science, MHS 2008, with Symposium on "COE for Education and Research of Micro-Nano Mechatronics", Symposium on "System Cell Engineering by Multi-scale Manipulation" - Nagoya, Japan
Duration: 2008 Nov 62008 Nov 9

Publication series

Name2008 International Symposium on Micro-NanoMechatronics and Human Science, MHS 2008

Conference

Conference2008 International Symposium on Micro-NanoMechatronics and Human Science, MHS 2008, with Symposium on "COE for Education and Research of Micro-Nano Mechatronics", Symposium on "System Cell Engineering by Multi-scale Manipulation"
CountryJapan
CityNagoya
Period08/11/608/11/9

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ASJC Scopus subject areas

  • Computer Vision and Pattern Recognition
  • Human-Computer Interaction
  • Electrical and Electronic Engineering

Cite this

Sakuma, S., Yamanishi, Y., & Arai, F. (2008). Polymer-based magnetically driven microtool for on-chip particle sorting. In 2008 International Symposium on Micro-NanoMechatronics and Human Science, MHS 2008, with Symposium on "COE for Education and Research of Micro-Nano Mechatronics" (pp. 231-236). [4752455] (2008 International Symposium on Micro-NanoMechatronics and Human Science, MHS 2008). https://doi.org/10.1109/MHS.2008.4752455