Title: Hybrid microfluidic and nanofluidic system

Abstract

A fluid circuit includes a membrane having a first side, a second side opposite the first side, and a pore extending from the first side to the second side. The circuit also includes a first channel containing fluid extending along the first side of the membrane and a second channel containing fluid extending along the second side of the membrane and crossing the first channel. The circuit also includes an electrical source in electrical communication with at least one of the first fluid and second fluid for selectively developing an electrical potential between fluid in the first channel and fluid in the second channel. This causes at least one component of fluid to pass through the pore in the membrane from one of the first channel and the second channel to the other of the first channel and the second channel.

Inventors:

Bohn, Paul W ^[1]; Sweedler, Jonathan V ^[2]; Shannon, Mark A ^[1]; Kuo, Tzu-chi ^[3]

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+ Show Inventor Affiliations

1. Champaign, IL
2. Urbana, IL
3. Savoy, IL

Issue Date:

Tue May 22 00:00:00 EDT 2007

Research Org.:

Univ. of Illinois at Urbana-Champaign, IL (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

909413

Patent Number(s):

7220345

Application Number:

10/273,935

Assignee:

The Board of Trustees of the University of Illinois (Urbana, IL)

Patent Classifications (CPCs):

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY

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B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION

B01D57/02 - by electrophoresis

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY

B01J19/0093 - {Microreactors, e.g. miniaturised or microfabricated reactors
B01J2219/00783 - Laminate assemblies, i.e. the reactor comprising a stack of plates
B01J2219/00907 - using membranes
B01J2219/0093 - Electric or magnetic energy

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01L - CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE

B01L2200/027 - for microfluidic devices
B01L2300/0681 - Filter
B01L2300/0874 - Three dimensional network
B01L2300/0896 - Nanoscaled
B01L2400/0415 - electrical forces, e.g. electrokinetic
B01L2400/06 - Valves, specific forms thereof
B01L2400/0627 - Molecular gates forcing or inhibiting diffusion
B01L3/502707 - {characterised by the manufacture of the container or its components
B01L3/502761 - {specially adapted for handling suspended solids or molecules independently from the bulk fluid flow, e.g. for trapping or sorting beads, for physically stretching molecules

B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES

B82Y30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites

G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES

G01N27/4473 - {by electric means}
G01N27/44791 - {Microapparatus

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DOE Contract Number:  

FG02-88ER13949; FG02-99ER62797

Resource Type:

Patent

Country of Publication:

United States

Language:

English

Subject:

77 NANOSCIENCE AND NANOTECHNOLOGY