Electroactuation of fluid using topographical wetting transitions

The complex morphologies of liquids on topographically structured substrates are exploited for liquid actuation in open microchannels. The liquid is either confined in prefabricated grooves, thus forming elongated filaments, or gathers in macroscopic drops without invading the grooves, depending on...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 21(2005), 26 vom: 20. Dez., Seite 12218-21
1. Verfasser: Baret, Jean-Christophe (VerfasserIn)
Weitere Verfasser: Decré, Michel, Herminghaus, Stephan, Seemann, Ralf
Format: Aufsatz
Sprache:English
Veröffentlicht: 2005
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article
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520 |a The complex morphologies of liquids on topographically structured substrates are exploited for liquid actuation in open microchannels. The liquid is either confined in prefabricated grooves, thus forming elongated filaments, or gathers in macroscopic drops without invading the grooves, depending on conditions. Using the electrowetting effect, we can reversibly switch between these two states. The length of the filaments is sensitive to the ionic content of the liquid and can be described quantitatively with an electrical model considering the voltage drop along the groove 
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700 1 |a Herminghaus, Stephan  |e verfasserin  |4 aut 
700 1 |a Seemann, Ralf  |e verfasserin  |4 aut 
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