Nanolaminate microfluidic device for mobility selection of...

Details Nanolaminate microfluidic device for mobility selection of... Nanolaminate microfluidic device for mobility selection of...

2006-10-10

2006-10-10

Olsen, Kaj K. (Department: 1753)

Chemistry: electrical and wave energy

Apparatus

Electrophoretic or electro-osmotic apparatus

C204S643000, C422S105000

Reexamination Certificate

active

07118661

ABSTRACT:
A microfluidic device made from nanolaminate materials that are capable of electrophoretic selection of particles on the basis of their mobility. Nanolaminate materials are generally alternating layers of two materials (one conducting, one insulating) that are made by sputter coating a flat substrate with a large number of layers. Specific subsets of the conducting layers are coupled together to form a single, extended electrode, interleaved with other similar electrodes. Thereby, the subsets of conducting layers may be dynamically charged to create time-dependent potential fields that can trap or transport charge colloidal particles. The addition of time-dependence is applicable to all geometries of nanolaminate electrophoretic and electrochemical designs from sinusoidal to nearly step-like.

REFERENCES:
patent: 4900414 (1990-02-01), Sibalis
patent: 5818055 (1998-10-01), Franzen
patent: 6596143 (2003-07-01), Wang et al.
patent: 2003/0129087 (2003-07-01), Barbee et al.
patent: 2004/0011652 (2004-01-01), Bressler

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