Authors
Craig Priest, Stephan Herminghaus, Ralf Seemann
Publication date
2006/9/25
Journal
Applied Physics Letters
Volume
89
Issue
13
Publisher
AIP Publishing
Description
Electrocoalescence of aqueous droplets is investigated as a tool for microfluidic processing. Where droplets are separated by only thin lamellae, coalescence can be induced on demand within a fraction of a millisecond at low potentials (few volts). The authors show that in their approach electrocoalescence proceeds through an electric-field-induced dynamic instability of the oil/water interface. When the electrode geometry and applied potential are optimized, individual lamellae can be targeted for rupture within highly ordered droplet arrangements.
Total citations
Scholar articles
C Priest, S Herminghaus, R Seemann - Applied Physics Letters, 2006