Navigation of Droplets through Micropillars using an AC Electric Field
Author(s)
Teo, AJT
Ho, CMB
Gao, Y
Nguyen, NT
Tan, SH
Year published
2018
Metadata
Show full item recordAbstract
We propose a new active mechanism to navigate droplets through a micropillar using an AC electric field. This mechanism enables on-demand droplet merging after head-on collision with a micropillar. In the absence of the electric field, droplets will split into two daughter droplets after collision with the micropillar. By passing an AC electric field across the micropillar, we observed that the electric field allows the split droplets to merge and revert back to become a single droplet. This new phenomenon opens up various exciting new possibilities such as digital signal encoding, generation of droplets of various sizes ...
View more >We propose a new active mechanism to navigate droplets through a micropillar using an AC electric field. This mechanism enables on-demand droplet merging after head-on collision with a micropillar. In the absence of the electric field, droplets will split into two daughter droplets after collision with the micropillar. By passing an AC electric field across the micropillar, we observed that the electric field allows the split droplets to merge and revert back to become a single droplet. This new phenomenon opens up various exciting new possibilities such as digital signal encoding, generation of droplets of various sizes and droplet barcoding. We present here the preliminary experimental results obtained by varying both the applied voltages and frequencies.
View less >
View more >We propose a new active mechanism to navigate droplets through a micropillar using an AC electric field. This mechanism enables on-demand droplet merging after head-on collision with a micropillar. In the absence of the electric field, droplets will split into two daughter droplets after collision with the micropillar. By passing an AC electric field across the micropillar, we observed that the electric field allows the split droplets to merge and revert back to become a single droplet. This new phenomenon opens up various exciting new possibilities such as digital signal encoding, generation of droplets of various sizes and droplet barcoding. We present here the preliminary experimental results obtained by varying both the applied voltages and frequencies.
View less >
Conference Title
22nd International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2018
Volume
1
Publisher URI
Subject
Microelectromechanical systems (MEMS)