Patent ID: 6565727
Filing Date: 2003-05-20
Classification: B01F,B01L,F04B,F16K,G02B

Abstract:
A device comprising:a) an electrically non-conductive first solid support having an upper surface; b) a plurality of first electrodes positioned on said upper surface, each of the first electrodes having at least one edge with projections in interdigitated relationship with projections on an edge of another first electrode; c) an electrically non-conductive second solid support having a lower surface, positioned opposite to, and separated from, the upper surface of the first solid support, so that a gap is formed between said second and first solid supports; d) a second electrode positioned on said lower surface; e) a first electrically insulative, hydrophobic layer insulating said first electrodes from the gap; f) a second hydrophobic layer positioned between the second electrode and the gap; g) a droplet comprising a polar liquid positioned in the gap; and h) a non-polar fluid positioned in the gap.