POROUS POLYMERS: COMPOSITIONS AND USES THEREOF

Title:

POROUS POLYMERS: COMPOSITIONS AND USES THEREOF

Document Type and Number:

WIPO Patent Application WO2003066684

Kind Code:

A3

Abstract:

A composition, method and use is disclosed for a porous plug that functions as an electro-osmotic pump. The polymer eliminates any back pressure effects while enhancing the electro-osmotic flow in a channel. The pump is bach fabricated by surface micromachining on top of a silicon wafer. The pump device is driven by an alternating zero-average injected current signal at low frequencies producing a bubble-free electro-osmotic flow with a reversible net movement. The device is capable of an average water-air interface velocity of 1.8 µm/second at 0.8 Hz. The velocity may be increased from between 4.8 - 13.9 µm/second by necking down the channel size.

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Inventors:

MUTLU SENOL (US)
SELVAGANAPATHY PONNAMBALAM (US)
MASTRANGELO CARLOS H (US)
SVEC FRANTISEK (US)
FRECHET JEAN M J (US)
YU CONG (US)

Application Number:

PCT/US2003/001491

Publication Date:

February 26, 2004

Filing Date:

January 17, 2003

Export Citation:

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Assignee:

UNIV MICHIGAN (US)
MUTLU SENOL (US)
SELVAGANAPATHY PONNAMBALAM (US)
MASTRANGELO CARLOS H (US)
SVEC FRANTISEK (US)
FRECHET JEAN M J (US)
YU CONG (US)

International Classes:

C08F2/00; F04B19/00; (IPC1-7): B32B3/26; B32B9/00

Foreign References:

US3664899A

1972-05-23

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