Micro-device for analysing liquid samples
AssigneesCommissariat a l'Energie Atomique, Centre National De La Recherche Scientifique, Institut Polytechnique De Grenoble
InventorsLaurent Davoust, Jérôme Boutet, Cyril Picard
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Abstract
A device for forming waves at the interface (I) of a liquid drop (F1) by electrowetting, enabling the micro-mixing and concentration of constituents at the interface (I) of the drop (F1). The device comprises at least one excitation electrode suitable for generating an oscillating and radial electric field about a first axis of symmetry, under the effect of an electric control, and a liquid drop (F1) arranged on said excitation electrode and having an axis of symmetry coinciding substantially with said first axis of symmetry, such that said electric field generates essentially axisymmetric waves at the interface (I) of said drop (F1).
Claims22
Device for forming waves at the interface (I) of a liquid drop (F1) by electrowetting, characterized in that it comprises:
- at least one excitation electrode suitable for generating an oscillating and radial electric field about a first axis of symmetry, under the effect of an electric control, so that, in the presence of a liquid drop (F1) arranged on said excitation electrode and having an axis of symmetry coinciding substantially with said first axis of symmetry, said electric field generates waves at the interface (I) of said drop (F1), said generated waves being essentially axisymmetric.
Method for forming waves at the interface of a liquid drop by electrowetting, characterized in that it comprises the following steps:
- arranging a liquid drop (F1) on at least one excitation electrode having a first axis of symmetry, such that the axis of symmetry of said drop (F1) coincides substantially with said first axis of symmetry, and
- generating an oscillating and radial electric field about said first axis of symmetry, such that essentially axisymmetric waves are formed at the interface (I) of said drop (F1).
Dependencies are inferred from the claim text.