TY - GEN
T1 - Polymer-based magnetically driven microtool for on-chip particle sorting
AU - Sakuma, Shinya
AU - Yamanishi, Yoko
AU - Arai, Fumihito
PY - 2008
Y1 - 2008
N2 - 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.
AB - 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.
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U2 - 10.1109/MHS.2008.4752455
DO - 10.1109/MHS.2008.4752455
M3 - Conference contribution
AN - SCOPUS:62449242951
SN - 9781424429196
T3 - 2008 International Symposium on Micro-NanoMechatronics and Human Science, MHS 2008
SP - 231
EP - 236
BT - 2008 International Symposium on Micro-NanoMechatronics and Human Science, MHS 2008, with Symposium on "COE for Education and Research of Micro-Nano Mechatronics"
T2 - 2008 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"
Y2 - 6 November 2008 through 9 November 2008
ER -