Abstract
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.
Original language | English |
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Title of host publication | Proceedings of Conference, MicroTAS 2009 - The 13th International Conference on Miniaturized Systems for Chemistry and Life Sciences |
Publisher | Chemical and Biological Microsystems Society |
Pages | 1778-1780 |
Number of pages | 3 |
ISBN (Print) | 9780979806421 |
Publication status | Published - 2009 |
Externally published | Yes |
Event | 13th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2009 - Jeju, Korea, Republic of Duration: Nov 1 2009 → Nov 5 2009 |
Other
Other | 13th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2009 |
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Country/Territory | Korea, Republic of |
City | Jeju |
Period | 11/1/09 → 11/5/09 |
All Science Journal Classification (ASJC) codes
- Chemical Engineering (miscellaneous)
- Bioengineering