Fast Electrically Switchable Capillary Effects

Through the application of a potential between a water droplet on a hydrophobic coating and the underlying conductive substrate, we have shown control over the contact angle of the droplet. The same phenomenon can be used to control capillary rise of a liquid in a coated capillary over several centi...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Langmuir 1998-03, Vol.14 (7), p.1535-1538
Hauptverfasser: Welters, Wim J. J, Fokkink, Lambertus G. J
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Through the application of a potential between a water droplet on a hydrophobic coating and the underlying conductive substrate, we have shown control over the contact angle of the droplet. The same phenomenon can be used to control capillary rise of a liquid in a coated capillary over several centimeters in a short time. Interesting applications such as a temporary improvement of adhesion (drying of paint), electrical control of liquid lenses, and patternwise and dynamic filling of a capillary array are in sight.
ISSN:0743-7463
1520-5827
DOI:10.1021/la971153b