Microfluidic movement

Details Microfluidic movement Microfluidic movement

2006-06-20

2006-06-20

Noguerola, Alex (Department: 1753)

Chemistry: electrical and wave energy

Processes and products

Electrophoresis or electro-osmosis processes and electrolyte...

C204S643000

Reexamination Certificate

active

07063778

ABSTRACT:
An apparatus for driving small volumes of fluid. The apparatus comprises a substrate and a first array of electrically conductive electrodes formed on the substrate. A second array of electrically conductive electrodes formed on the substrate, the first and second array being interlaced and being arranged such that each of the electrodes in the second array has a width in a fluid driving direction which is greater than that of each of the electrodes in the first array and such that the first and second set electrodes are positioned so that each of the electrodes of the first set is not at a position equidistant from adjacent electrodes of the second set, wherein both of the arrays of the arrays of electrode having widths in the fluid flow direction and thickness selected such that, in use, by varying the peak value of an alternating drive voltage applied thereto the direction of flow of a fluid adjacent to the arrays of electrodes can be controlled.

REFERENCES:
patent: 4390403 (1983-06-01), Batchelder
patent: 5632876 (1997-05-01), Zanzucchi et al.
patent: 6113768 (2000-09-01), Fuhr et al.
patent: 0957576 (1999-11-01), None
patent: WO 9734689 (1997-09-01), None
Studer et al. (Fabrication of micro fluidic devices for AC electrokinetic fluid pumping, Microelectronic Engineering 61-62 (2002) 915-920).
Schnelle et al. (Adhesion Inhibitated Surfaces. Coated and Uncoated Interdigitated Electrode Arrays in the Micrometer and Submicrometer Range, Langmuir 1996, 12, 801-809).

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