Difference between revisions of "Elektrowetting"
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(Created page with " - 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 diff...") |
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| − | + | == 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) | |
| − | What you need: | + | * Digital Microfluidic Circuits |
| − | + | <br> | |
| − | + | What you need:<br> | |
| − | + | * insulating dielectric and hydrophobic layers | |
| − | + | * immiscible fluids | |
| − | + | * DC or RF power | |
| − | + | * mass arrays of miniature interleaved electrodes (Indium tin oxide (ITO)) | |
| − | + | * digital control | |
| − | what you can do: | + | * nano droplets |
| − | + | <br> | |
| − | + | what you can do:<br> | |
| − | + | * 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 | ||
| + | <br> | ||
source: http://en.wikipedia.org/wiki/Electrowetting | source: http://en.wikipedia.org/wiki/Electrowetting | ||
| − | DIY experiment | + | == DIY experiment == |
What you need: | What you need: | ||
| − | + | * ribbon cable | |
| − | + | * water, oil | |
| − | + | * high voltage | |
| − | + | <br> | |
| − | What you can do: | + | What you can do:<br> |
| − | + | {{#widget:Iframe | |
| + | |url=http://www.youtube.com/watch?v=eD0h2jBZXCI | ||
| + | |width=400 | ||
| + | |height=300 | ||
| + | |border=0 | ||
| + | }} | ||
Revision as of 11:25, 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:
