TY - GEN
T1 - High-speed delivery of microbeads in microchannel using magnetically driven microtool
AU - Feng, L.
AU - Hagiwara, M.
AU - Uvet, Huseyin
AU - Yamanish, Y.
AU - Kawahara, T.
AU - Kosuge, K.
AU - Arai, F.
PY - 2011
Y1 - 2011
N2 - This paper presents on-demand microbeads delivery system in a microfluidic chip by magnetically driven microtool (MMT). The four of horizontally arranged permanent magnets and the piezoelectric vibrator are used to actuate the Ni based microtool precisely in the chip. The MMT injects the beads mechanically to flow and then into ejection operation part. We succeeded in transferring microbeads one by one with the required pace to the next process in order to achieve stable dispensing microbeads out from the microfluidic chip to incubation environment. We succeeded in demonstration of the delivery and ejection of polystyrene beads (100 m) with the flow velocity of from 0.02 ml/h to 0.04 ml/h and MMT frequency from 1 Hz to 6 Hz to adjust the pitch of each micro-bead. The spacing interval of microbeads could be mainly adjusted by changing of MMT frequency and the flow velocity of output stream. The proposed system shows advantages of high-speed, high success ratio and disposable of microfluidic chip having MMT.
AB - This paper presents on-demand microbeads delivery system in a microfluidic chip by magnetically driven microtool (MMT). The four of horizontally arranged permanent magnets and the piezoelectric vibrator are used to actuate the Ni based microtool precisely in the chip. The MMT injects the beads mechanically to flow and then into ejection operation part. We succeeded in transferring microbeads one by one with the required pace to the next process in order to achieve stable dispensing microbeads out from the microfluidic chip to incubation environment. We succeeded in demonstration of the delivery and ejection of polystyrene beads (100 m) with the flow velocity of from 0.02 ml/h to 0.04 ml/h and MMT frequency from 1 Hz to 6 Hz to adjust the pitch of each micro-bead. The spacing interval of microbeads could be mainly adjusted by changing of MMT frequency and the flow velocity of output stream. The proposed system shows advantages of high-speed, high success ratio and disposable of microfluidic chip having MMT.
UR - http://www.scopus.com/inward/record.url?scp=80052122477&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=80052122477&partnerID=8YFLogxK
U2 - 10.1109/TRANSDUCERS.2011.5969431
DO - 10.1109/TRANSDUCERS.2011.5969431
M3 - Conference contribution
AN - SCOPUS:80052122477
SN - 9781457701573
T3 - 2011 16th International Solid-State Sensors, Actuators and Microsystems Conference, TRANSDUCERS'11
SP - 1312
EP - 1315
BT - 2011 16th International Solid-State Sensors, Actuators and Microsystems Conference, TRANSDUCERS'11
T2 - 2011 16th International Solid-State Sensors, Actuators and Microsystems Conference, TRANSDUCERS'11
Y2 - 5 June 2011 through 9 June 2011
ER -