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This phenomenon is called electrowetting on dielectric (EWOD).
It is an inert, electrically and mechanically resistant, hydrophobic, and transparent material with high dielectric strength and thus is well suited for EWOD applications especially in optics.
A proof of concept for the actuation of a droplet array has been presented, where a two-dimensional array of droplets can simultaneously be moved to four different positions using electrowetting on dielectrics (EWOD) as the actuation principle.
The cell is standing upright and is operated by the actuation of the droplet via EWOD forces.
For the same voltage the EWOD response time of <20 ms of our device is significantly smaller.
As a matter of fact we employed two gold structures, one in front of and one behind the droplet in order to get a symmetric set-up and EWOD forces symmetrically distributed over the front and rear of the droplet.
We get a small EWOD response time of <20 ms for 2-90 V peak-to-peak operation voltage.
We have presented a double capacitor design for liquid droplet actuation via electrowetting-on-dielectrics (EWOD), within the context of a movable optical shutter (the droplet) with a constant opening diameter of about 0.5 mm.
The concept results in a small EWOD response time of less than 20 ms for actuation voltages of 2-90 V.
For EWOD experiments reported here, we employ droplets of aqueous solutions of Au nanoparticles (AuNPs).
"Effect of submicron particles on electrowetting on dielectrics (EWOD) of sessile droplets," Journal of Colloid and Interface Science, vol.
The company recently released a statement saying that the Cefn Croes development would be unaffected by the Enron Corporation's recent bankruptcy, as EWOD is a separate company with positive cash flows and which continues to trade as a viable entity.
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