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Coplanar digital microfluidics using standard printed circuit board processes

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TLDR
In this article, Coplanar electrowetting and transport and mixing in an open microfluidic substrate have been demonstrated on a printed circuit board (PCB) and a microfluide substrate.
Abstract
We report three novel demonstrations: 1 Coplanar electrowetting 2 Electrowetting on a printed circuit board (PCB) and 3 Transport and mixing in an “open” microfluidic substrate Similar to “soft” lithography which enabled many researchers to easily prototype and experiment with continuous-flow microfluidics, this work allows researchers to easily experiment with discrete-flow microfluidics (digital microfluidics) The flexibility in design afforded by this coplanar and “open” structure facilitates novel applications, particularly in areas of clinical diagnostics and reconfigurable chip cooling Furthermore, it provides digital microfluidic systems with an inexpensive and rapid turn-around process

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References
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Journal ArticleDOI

Electrowetting-based actuation of droplets for integrated microfluidics

TL;DR: In this paper, an alternative approach to microfluidics based upon the micromanipulation of discrete droplets of aqueous electrolyte by electrowetting is reported.
Journal ArticleDOI

Rapid droplet mixers for digital microfluidic systems.

TL;DR: This paper studies the effects of varying droplet aspect ratios on linear-array droplet mixers, and proposes mixing strategies applicable for both high and low aspect ratio systems, and presents a split-and-merge mixer that takes advantage of the ability to perform droplet splitting at these ratios.
Patent

Apparatus for manipulating droplets by electrowetting-based techniques

TL;DR: In this article, an apparatus is provided for manipulating droplets using electrowetting-based techniques in which electrodes contained on or embedded in the first surface are sequentially energized and de-energized in a controlled manner.
Proceedings ArticleDOI

Two-dimensional digital microfluidic system by multilayer printed circuit board

TL;DR: In this article, the authors report a true 2D (i.e., direct physical access to each electrode in a M/spl times/N grid) electrowetting-on-dielectric (EWOD) chip for the first time by adopting a multilayer printed circuit board (PCB) as the substrate.
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