Difference between revisions of "Elektrowetting"
From Hackteria Wiki
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[[File:Electrowetting_TFT.png|x350px]]<br> | [[File:Electrowetting_TFT.png|x350px]]<br> | ||
− | Electrowetting_TFT | + | Electrowetting_TFT [1] |
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== DIY experiment == | == DIY experiment == | ||
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[http://www.youtube.com/embed/Bf1GjCaYzYg The Electrowetting Display]<br> | [http://www.youtube.com/embed/Bf1GjCaYzYg The Electrowetting Display]<br> | ||
<br> | <br> | ||
+ | 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 |
Revision as of 11:53, 1 December 2014
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
What you can do:
References
On chip Sample preparation utilising EWOD Concept
DNA Lab on a Chip
Sandia Digital Microfluidic Hub
The Electrowetting Display
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