NDLI: Design, fabrication and characterization of low cost printed circuit board based EWOD device for digital microfluidics applications

Content Provider	Springer Nature Link
Author	Jain, Vandana Raj, T. Pravin Deshmukh, Raghvendra Patrikar, Rajendra
Copyright Year	2015
Abstract	Digital microfluidics (DMF) is an emerging liquid-handling technology that enables individual control over droplets on array of electrodes. In this paper a low cost approach for development and characterization of open configured electro wetting on dielectric (EWOD) based digital microfluidic device is presented. The array of electrodes pattern with 155 μm gap is realized on copper plated printed circuit board (PCB). Biocompatible polydimethylsiloxane (PDMS) is used as dielectric as well as hydrophobic layer which is a competitive substitute of expensive materials like Teflon-AF and parylene-C. The device is tested by the in-house developed low cost droplet handling and characterization system. A contact angle is measured by curve fitting; the volume of a droplet is calculated using a novel approach based on mathematical modeling of droplet as a spherical cap. The droplet transporting and merging are successfully performed on a fabricated device and velocities for forward and reverse direction on square and interdigitated pattern are analyzed. The device is also successfully demonstrated for the mixing applications using direct statistical method.
Starting Page	389
Ending Page	397
Page Count	9
File Format	PDF
ISSN	09467076
Journal	Microsystem Technologies
Volume Number	23
Issue Number	2
e-ISSN	14321858
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2015-09-24
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Electronics and Microelectronics, Instrumentation Nanotechnology Mechanical Engineering
Content Type	Text
Resource Type	Article
Subject	Nanoscience and Nanotechnology Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering Hardware and Architecture

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