Method and apparatus for non-contact electrostatic actuation...

Details Method and apparatus for non-contact electrostatic actuation... Method and apparatus for non-contact electrostatic actuation...

2006-01-24

2006-01-24

Forman, BJ (Department: 1634)

Chemistry: molecular biology and microbiology

Measuring or testing process involving enzymes or...

Involving nucleic acid

C435S007100, C435S174000, C435S283100, C435S287200, C435S288200, C435S288500, C422S068100, C422S105000

Reexamination Certificate

active

06989234

ABSTRACT:
An apparatus for actuating a droplet comprises a first conductive layer, a second conductive layer, a conductive elongate element, and a voltage source. The first conductive layer comprises a first hydrophobic surface. The second conductive layer comprises a hydrophilic surface facing the first hydrophobic surface. The second conductive layer is axially spaced from the first conductive layer to define a gap therebetween. The conductive medial element is disposed in the gap between the first and second conductive layers, and comprises a second hydrophobic surface. The voltage source communicates with the second conductive layer and the elongate element. By applying a voltage potential between the elongate element and the second conductive layer, droplets can be electrostatically actuated so as to move from the first conductive layer into contact with the second conductive layer. The apparatus is particularly useful in the synthesis of microarrays of biological, chemical, or biochemical samples.

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