EWOD stabilization of two liquid streams along a microchannel and EHD-induced enhancement of interfacial mass transfer

Yoshito Ishida (1) , Laurent Davoust (2) , Alain Glière (1) , Julien Gratier (1) , N. Sarrut (1)

1 CEA-LETI - Commissariat à l'énergie atomique et aux énergies alternatives - Laboratoire d'Electronique et de Technologie de l'Information
2 LEGI - Laboratoire des Écoulements Géophysiques et Industriels [Grenoble]

This paper presents a new micro-device for liquid-liquid extraction in which two immiscible liquids flow in parallel along a microchannel located after a T-junction. Two electrical phenomena, electrowetting on dielectrics (EWOD) and electrohydrodynamics (EHD), respectively allow for the stabilization of the meniscus between the two liquid streams and the enhancement of interfacial mass transfer.

Mots clés: Electrowetting; Electrohydrodynamics; Interface; Micro-extractor

Domaines: Mécanique des fluides [physics.class-ph]; Mécanique des fluides [physics.class-ph]; Génie des procédés

Yoshito Ishida, Laurent Davoust, Alain Glière, Julien Gratier, N. Sarrut. EWOD stabilization of two liquid streams along a microchannel and EHD-induced enhancement of interfacial mass transfer. microTas conference, Oct 2007, Paris, France. pp.306-308. ⟨hal-00266813⟩