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The electrowetting effect has been defined as "the change in solid-electrolyte contact angle due to an applied potential difference between the solid and the electrolyte". The phenomenon of electrowetting can be understood in terms of the forces that result from the applied electric field.
The photoelectrowetting effect can be interpreted by a modification of the Young-Lippmann equation. [3] The figure illustrates the principle of the photoelectrowetting effect. At zero bias (0V) the conducting droplet has a large contact angle (left image) if the insulator is hydrophobic.
Figure 9: "Petal effect" vs. "lotus effect" The intrinsic hydrophobicity of a surface can be enhanced by being textured with different length scales of roughness . The red rose takes advantage of this by using a hierarchy of micro- and nanostructures on each petal to provide sufficient roughness for superhydrophobicity.
Optoelectrowetting (OEW) is a method of liquid droplet manipulation used in microfluidics applications. This technique builds on the principle of electrowetting, which has proven useful in liquid actuation due to fast switching response times and low power consumption.
Maybe it’s parallel universes or time travel, maybe it’s just bad memory — either way, it’s fascinating.View Entire Post ›
The FDA’s recent ban on Red Dye No. 3, set to take effect by 2027 for foods and 2028 for drugs, marks a significant step in addressing safety concerns over artificial food dyes in the U.S. food ...
This refers to the phenomenon Electrowetting On Dielectric . [5] For example, when no electric field is applied to an electrode, the surface will remain hydrophobic and a liquid droplet will form a more spherical droplet with a greater contact angle. When an electric field is applied, a polarized hydrophilic surface is created.
Some other examples: If you need to book that flight for your business trip in the morning, put a paper airplane in your coffee mug. Need to pick up allergy medicine at the drugstore? Draw a ...