TY - GEN
T1 - On-chip micro-droplet dispenser with disposable structure
AU - Mizunuma, Takehito
AU - Yamanishi, Yoko
AU - Sakuma, Shinya
AU - Maruyama, Hisataka
AU - Arai, Fumihito
PY - 2009
Y1 - 2009
N2 - We succeeded in dispensing micro-droplet by a disposable on-chip inkjet mechanism. Novelty of this paper is summarized as follows. (1) We employed a glass bonded PDMS to obtain leaf spring structure whose spring coefficient is 14 times of the conventional PDMS chip. As a result, we succeeded in dispensing of droplets by vibrating the membrane using the piezoelectric actuator attached to the PDMS disposable chip. (2) The nozzle for droplet dispensing was fabricated by SU-8 to obtain the hydrophobic surface which prevents any undesired satellite droplets produced. Consequently the accuracy of position of the droplet dispensing was achieved ±5 μm. The size of the droplet produced from the disposable nozzle (diameter = 100 μm) was in the range of 95-105 μm at the applied voltage of 105 V.
AB - We succeeded in dispensing micro-droplet by a disposable on-chip inkjet mechanism. Novelty of this paper is summarized as follows. (1) We employed a glass bonded PDMS to obtain leaf spring structure whose spring coefficient is 14 times of the conventional PDMS chip. As a result, we succeeded in dispensing of droplets by vibrating the membrane using the piezoelectric actuator attached to the PDMS disposable chip. (2) The nozzle for droplet dispensing was fabricated by SU-8 to obtain the hydrophobic surface which prevents any undesired satellite droplets produced. Consequently the accuracy of position of the droplet dispensing was achieved ±5 μm. The size of the droplet produced from the disposable nozzle (diameter = 100 μm) was in the range of 95-105 μm at the applied voltage of 105 V.
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M3 - Conference contribution
AN - SCOPUS:80052107055
SN - 9780979806421
T3 - Proceedings of Conference, MicroTAS 2009 - The 13th International Conference on Miniaturized Systems for Chemistry and Life Sciences
SP - 1778
EP - 1780
BT - Proceedings of Conference, MicroTAS 2009 - The 13th International Conference on Miniaturized Systems for Chemistry and Life Sciences
PB - Chemical and Biological Microsystems Society
T2 - 13th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2009
Y2 - 1 November 2009 through 5 November 2009
ER -