Abstract
We developed an oil-in-water droplet formation method in a 3D stacked PDMS device without hydrophilic treatment using structural feature only. Three-dimensional junction shape of oil-water phase injection channels suppressed contact and spreading of oil on the wall surface which was critical problem of droplet formation for unfavourable wetting condition. Dimension of droplets formed under various flow conditions was provided and effects of each channel's shape on the droplet formation results were evaluated. The proposed structure can be used as a droplet generator and element for droplet based researches employing various materials.
| Original language | English |
|---|---|
| Title of host publication | 22nd International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2018 |
| Publisher | Chemical and Biological Microsystems Society |
| Pages | 395-397 |
| Number of pages | 3 |
| ISBN (Electronic) | 9781510897571 |
| Publication status | Published - 2018 |
| Event | 22nd International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2018 - Kaohsiung, Taiwan, Province of China Duration: 2018 Nov 11 → 2018 Nov 15 |
Publication series
| Name | 22nd International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2018 |
|---|---|
| Volume | 1 |
Conference
| Conference | 22nd International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2018 |
|---|---|
| Country | Taiwan, Province of China |
| City | Kaohsiung |
| Period | 18/11/11 → 18/11/15 |
Keywords
- 3D microfluidics
- Isolated protrusion-end
- Oil-in-water droplet
ASJC Scopus subject areas
- Chemistry(all)
- Bioengineering
- Chemical Engineering (miscellaneous)
- Control and Systems Engineering
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Cite this
Tang, C., Yoon, D. H., Sekiguchi, T., & Shoji, S. (2018). Oil-in-water droplet formation in hydrophobic PDMS device using three-dimensional protruded taper channel. In 22nd International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2018 (pp. 395-397). (22nd International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2018; Vol. 1). Chemical and Biological Microsystems Society.