Wettability control of droplet deposition and detachment

Jean-Christophe Baret, Martin Brinkmann

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18 Citations (Scopus)

Abstract

The conditions for droplet deposition on plane substrates are studied using electrowetting to continuously modulate the surface wettability. Droplets of controlled volume attached to the tip of a pipette are brought into contact with the surface. During retraction of the pipette the droplets are deposited or detach completely depending on volume and contact angle. The experimental limit of deposition in the contact angle or volume plane is in good agreement with analytical and numerical predictions obtained within the capillary model.
Original languageEnglish
Article number146106
JournalPhysical Review Letters
Volume96
Issue number14
DOIs
Publication statusPublished - 14 Apr 2006
Externally publishedYes

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