Abstract
In this study, a microfluidic chip is developed where surface acoustic waves (SAWs) are used to merge multiple droplets on demand. Acoustic radiation forces induced in the liquid medium are shown to trap droplets while they are passing from a microchannel to an expansion chamber. Droplets stay immobilized until successive droplets arrive and merge. As the droplet volume increases beyond a critical value, drag forces exceed the existing acoustic radiation forces and cause the merged droplet to exit the expansion chamber. The number of successive droplets that can be merged depend on the initial droplet size and applied power for actuation.
| Original language | English |
|---|---|
| Title of host publication | 18th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2014 |
| Publisher | Chemical and Biological Microsystems Society |
| Pages | 1653-1655 |
| Number of pages | 3 |
| ISBN (Electronic) | 9780979806476 |
| Publication status | Published - 2014 |
| Event | 18th International Conference on Miniaturized Systems for Chemistry and Life Sciences 2014 - San Antonio, United States Duration: 26 Oct 2014 → 30 Oct 2014 |
Conference
| Conference | 18th International Conference on Miniaturized Systems for Chemistry and Life Sciences 2014 |
|---|---|
| Abbreviated title | MicroTAS 2014 |
| Country/Territory | United States |
| City | San Antonio |
| Period | 26/10/14 → 30/10/14 |
Keywords
- Droplet
- Merging
- Microfluidics
- Surface Acoustic Waves
ASJC Scopus subject areas
- Control and Systems Engineering