Droplet Velocity in an Electrowetting on Dielectric Digital Microfluidic Device

DSpace/Manakin Repository

Droplet Velocity in an Electrowetting on Dielectric Digital Microfluidic Device

Show full item record

Title: Droplet Velocity in an Electrowetting on Dielectric Digital Microfluidic Device
Author(s):
Nahar, M. M.;
Nikapitiya, J. B.;
You, Seung M.;
Moon, H.
Item Type: article
Keywords: Show Keywords
Description: Includes supplementary material
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 particular scheme of activating the array of rectangular electrodes enhances the droplet speed up to 100% in comparison to the droplet speed in a conventional device with square shaped electrodes.
Publisher: MDPI AG
ISSN: 2072-666X
Link to Related Resource: http://dx.doi.org/10.3390/mi7040071
Persistent Link: http://dx.doi.org/10.3390/mi7040071
http://hdl.handle.net/10735.1/5617
Bibliographic Citation: Nahar, M. M., J. B. Nikapitiya, S. M. You, and H. Moon. 2016. "Droplet velocity in an electrowetting on dielectric digital microfluidic device." Micromachines 7(4), doi:10.3390/mi7040071
Terms of Use: CC BY 4.0 (Attribution)
©2016 The Authors. All Rights Reserved.
Sponsors: Defense Advanced Research Projects Agency/Microsystems Technology Office (DARPA/MTO) (grant no. W31P4Q-11-1-0012) and National Science Foundation (grant no. ECCS-1254602)

Files in this item

Files Size Format View
JECS-5616-7054.40.pdf 15.61Mb PDF View/Open Article
JECS-5616-7054.40_S1.mp4 5.473Mb application/Windows Media Player, VLC Media Player View/Open Suppl Video 1
JECS-5616-7054.40_S2.mp4 1.774Mb application/Windows Media Player, VLC Media Player View/Open Suppl Video 2
JECS-5616-7054.40_S3.mp4 5.467Mb application/Windows Media Player, VLC Media Player View/Open Suppl Video 3
JECS-5616-7054.40_S4.mp4 5.016Mb application/Windows Media Player, VLC Media Player View/Open Suppl Video 4
JECS-5616-7054.40_S5.mp4 5.671Mb application/Windows Media Player, VLC Media Player View/Open Suppl Video 5
JECS-5616-7054.40_S6.mp4 4.830Mb application/Windows Media Player, VLC Media Player View/Open Suppl Video 6
JECS-5616-7054.40_S7.mp4 4.772Mb application/Windows Media Player, VLC Media Player View/Open Suppl Video 7
JECS-5616-7054.40_S8.mp4 3.455Mb application/Windows Media Player, VLC Media Player View/Open Suppl Video 8

This item appears in the following Collection(s)


Show full item record

CC BY 4.0 (Attribution) Except where otherwise noted, this item's license is described as CC BY 4.0 (Attribution)