Droplet Velocity in an Electrowetting on Dielectric Digital Microfluidic Device.

ABSTRACT: In many electrowetting on dielectric (EWOD) based microfluidics devices, droplet actuation speed is a crucial performance-controlling parameter. Our present study aims to characterize and study droplet speed in a typical EWOD device. First, a practical droplet speed measurement method has been methodically demonstrated and some related velocity terms have been introduced. Next, influence of electrode shape on droplet speed has been studied and a new design to enhance droplet speed has been proposed and experimentally demonstrated. Instead of using square shaped electrodes, rectangular electrodes with smaller widths are used to actuate droplets. Additionally, different schemes of activating electrodes are studied and compared for the same applied voltage. The experiments show that a particu

SUBMITTER: Nahar MM 

PROVIDER: S-EPMC6189997 | biostudies-literature | 2016 Apr

REPOSITORIES: biostudies-literature