Difference between revisions of "Elektrowetting"
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− | == DigiFlux Shield == | + | == DigiFlux Shield ==file:///media/gaudi/CANON_DC/DCIM/124___03/IMG_7383.JPG |
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[[File:Electrowetting_Digiflux_ProtLayout.jpg|x250px]]<br> | [[File:Electrowetting_Digiflux_ProtLayout.jpg|x250px]]<br> | ||
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[[File:Electrowetting_Digiflux_Lab.jpg|x250px]]<br> | [[File:Electrowetting_Digiflux_Lab.jpg|x250px]]<br> | ||
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+ | == Intense fluxing (hacking session) == | ||
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+ | [[File:fluxel in a box.JPG|400px]]<br> | ||
+ | Embedding the fluxel device in a fancy German box<br> | ||
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+ | [[:File:fluxel incubated.JPG]] <br> | ||
+ | Incubating cells on the fluxel device <br> | ||
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+ | [[File:fluxel one night stand.JPG|400px]]<br> | ||
+ | Growing cells overnight <br> | ||
== References == | == References == |
Revision as of 15:24, 10 March 2015
Contents
Introduction
- Electrical charge of the surface changes the shape of water drops (before 1875)
- Electrowetting is the modification of the wetting properties of a surface by applying different electric fields (1981)
- "fluid transistor" for manipulating chemical and biological fluids (1980)
- Electrowetting on this dielectric-coated surface, EWOD (1993)
- Digital Microfluidic Circuits
What you need:
- insulating dielectric and hydrophobic layers
- immiscible fluids
- DC or RF power
- mass arrays of miniature interleaved electrodes (Indium tin oxide (ITO))
- digital control
- nano droplets
What you can do:
- move droplets in linear, circular and directed paths
- pump fluids
- mix fluids
- fill reservoirs
- move droplets over sensors or heaters
- control fluid flow electronically or optically
source: http://en.wikipedia.org/wiki/Electrowetting
DIY experiment
What you need:
- ribbon cable
- water, oil
- high voltage (how high? Amperage? will 80v do?)
What you can do:
DIY Designs
Fluxology
FluxMux-Device
Based on two crosswise flat ribbon cable the FluxMux device is an easy way to create a digital microfluidic device. An array of power leds shines through the grid to make drops visible.
The control is multiplexed.
Flux Technologies
comming soon...
Bio Device
Surface Coating
Electronic Control
[1,2,3]
Visit to DropBot @ Helsinki University
== DigiFlux Shield ==file:///media/gaudi/CANON_DC/DCIM/124___03/IMG_7383.JPG
Layouting first prototype of DigiFlux with array of fluxels
Etching some prototype shields.
Spin-coating with PDMS and teflon
Intense fluxing (hacking session)
Embedding the fluxel device in a fancy German box
File:fluxel incubated.JPG
Incubating cells on the fluxel device
References
Fast Fabricating Electrowetting
Low Cost PCB Digital Microfluidic
Videos
On chip Sample preparation utilising EWOD Concept
DNA Lab on a Chip
Sandia Digital Microfluidic Hub
The Electrowetting Display
AM-(TFT-)EWOD
Article on AM-(TFT-)EWOD
Patents
1 Toward active-matrix lab-on-a-chip: programmable electrofluidic control enabled by arrayed oxide thin film transistors†
Joo Hyon Noh, a Jiyong Noh, a Eric Kreit, b Jason Heikenfeld b and Philip D. Rack
2 Electrowetting: from basics to applications, Frieder Mugele 1,3 and Jean-Christophe Baret
3 Programmable large area digital microfluidic array with integrated droplet sensing for bioassays, B. Hadwen, a G. R. Broder, b D. Morganti, b A. Jacobs, a C. Brown, a J. R. Hector, a Y. Kubota c and H. Morgan* b