IP Library Granted Patent US 7,081,227
Granted Patent B2
US 7,081,227 · App. 10/862,998 · Granted Jul 25, 2006

Amphiphilic mediated sample preparation for micro-flow cytometry

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Quick Facts
Patent No.
US 7,081,227
App. No.
10/862,998
Granted
Jul 25, 2006
Kind
B2
Abstract

A flow cytometer includes a flow cell for detecting the sample, an oil phase in the flow cell, a water phase in the flow cell, an oil-water interface between the oil phase and the water phase, a detector for detecting the sample at the oil-water interface, and a hydrophobic unit operatively connected to the sample. The hydrophobic unit is attached to the sample. The sample and the hydrophobic unit are placed in an oil and water combination. The sample is detected at the interface between the oil phase and the water phase.

Claims (27)

1. A flow cytometry apparatus for detecting a target species in a sample, comprising:

a mixing chamber that receives the sample containing a target species, and a hydrophobic unit, said hydrophobic unit comprising a bead with a hydrophobic tail,

a flow cell connected to said mixing chamber,

a filter positioned between the mixing chamber and the flow cell,

an oil component in said flow cell,

a water component in said flow cell,

an oil-water interface between said oil component and said water component,

a detector that detects the target species at said oil-water interface, and wherein the hydrophobic unit operatively connected to the target species that causes said hydrophobic unit and the target species to be at said oil-water interface.

2. The flow cytometry apparatus of claim 1 wherein said hydrophobic unit includes a surfactant head.

3. The flow cytometry apparatus of claim 1 wherein specific antibodies are connected to said bead and the target species.

4. The flow cytometry apparatus of claim 1 wherein flourescently labeled antibodies are connected to said bead and the target species.

5. The flow cytometry apparatus of claim 1 wherein said detector is a laser detector.

6. The flow cytometry apparatus of claim 1 including a sample injection port connected to said mixing chamber.

7. A flow cytometry apparatus for detecting a target species in a sample, comprising:

a mixing chamber means for receiving the sample containing a target species, and a hydrophobic unit, said hydrophobic unit comprising a bead with a hydrophobictial,

flow cell means for detecting the sample, said flow cell means connected to said mixing chamber,

a filter positioned between the mixing chamber means and the flow cell means,

an oil phase in said flow cell means,

a water phase in said flow cell means,

an oil-water interface between said oil phase and said waterphase,

detector means for detecting the target species at said oil-water interface, and wherein

the hydrophobic unit means connected to the target species that causes said hydrophobic unit means and the target species to be at said oil-water interface.

8. The flow cytometry apparatus of claim 7 wherein said hydrophobic unit means includes a surfactant head.

9. The flow cytometry apparatus of claim 7 wherein specific antibodies operatively connected to said beads and the target species.

10. The flow cytometry apparatus of claim 7 wherein flourescently labeled antibodies are connected to said bead and the target species.

11. The flow cytometry apparatus of claim 7 wherein said detector means is a laser detector.

12. The flow cytometry apparatus of claim 7 including a sample injection port connected to said mixing chamber.

Assignments (3)
50% UNDIVIDED INTEREST Recorded Oct 4, 2007
From: CALIFORNIA, THE REGENTS OF THE UNIVERSITY OF
To: LAWRENCE LIVERMORE NATIONAL SECURITY, LLC
Reel/Frame 020010/0195 →
CONFIRMATORY LICENSE Recorded Sep 24, 2004
From: REGENTS OF THE UNIVERSITY OF CALIFORNIA, THE
To: ENERGY, U.S. DEPARTMENT OF
Reel/Frame 015175/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 7, 2004
From: CLAGUE, DAVID S.; WHEELER, ELIZABETH K.; LEE, ABRAHAM P.
To: REGENTS OF THE UNIVERSITY OF CALIFORNIA, THE
Reel/Frame 015457/0761 →