1. What contributions have the authors mentioned in the paper "On-chip double emulsion droplet assembly using electrowetting- on-dielectric and dielectrophoresis" ?
This thesis reports experimental results on the application of microfluidics to form double emulsion ( DE ) droplets used for fabrication of cryogenic foam targets.. Because it is electrically controlled, this scheme provides excellent flexibility and scalability.. The authors present a simple model to calculate the electric actuation forces using lumped parameter electromechanics.. The authors demonstrate that aqueous and nonaqueous liquid droplets can be dispensed from on-chip reservoirs by EWOD and DEP actuations, respectively.
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2. What future works have the authors mentioned in the paper "On-chip double emulsion droplet assembly using electrowetting- on-dielectric and dielectrophoresis" ?
Chapter 9 Conclusion and future work 133 the oleophobicity is lost.. See table 6. 2. The tether can be quite persistent and hard to Chapter 9 Conclusion and future work 134 rupture.. Further research is needed to demonstrate the underlying mechanism.. The authors have excluded the possibility that pinholes are the reason for the failure.
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3. How long does it take to drive a droplet from one electrode to another?
The droplet velocity at the threshold voltage can be as low as 5 μm/s, so it may take more than 3 minutes to drive a droplet from one electrode to another.
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4. What is the effect of having connecting lines beside the actuation electrode?
The reproducibility of on-chip dispensing depends on the following operational parameters: liquid surface tension, viscosity, dispensing frequency, length of the cutting electrode, applied voltage, mother droplet size, and the effect of having connecting lines beside the actuation electrode on single conductive layer device.
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