Controlled electrocoalescence in microfluidics: Targeting a single lamella

作者: Craig Priest , Stephan Herminghaus , Ralf Seemann

DOI: 10.1063/1.2357039

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摘要: Electrocoalescence of aqueous droplets is investigated as a tool for microfluidic processing. Where are separated by only thin lamellae, coalescence can be induced on demand within fraction millisecond at low potentials (few volts). The authors show that in their approach electrocoalescence proceeds through an electric-field-induced dynamic instability the oil/water interface. When electrode geometry and applied potential optimized, individual lamellae targeted rupture highly ordered droplet arrangements.

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