The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 25, 2017

Filed:

Aug. 22, 2011
Applicants:

Charles R. Mace, Auburn, NY (US);

Ozge Akbulut Halatci, Allston, MA (US);

Ashok A. Kumar, Cambridge, MA (US);

Nathan D. Shapiro, Cambridge, MA (US);

George M. Whitesides, Newton, MA (US);

Inventors:

Charles R. Mace, Auburn, NY (US);

Ozge Akbulut Halatci, Allston, MA (US);

Ashok A. Kumar, Cambridge, MA (US);

Nathan D. Shapiro, Cambridge, MA (US);

George M. Whitesides, Newton, MA (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 33/00 (2006.01); G01N 33/49 (2006.01); B03B 5/28 (2006.01); B03B 5/44 (2006.01); B03D 3/00 (2006.01); G01N 33/537 (2006.01); G01N 33/574 (2006.01); G01N 33/18 (2006.01);
U.S. Cl.
CPC ...
G01N 33/491 (2013.01); B03B 5/28 (2013.01); B03B 5/442 (2013.01); B03D 3/00 (2013.01); G01N 33/18 (2013.01); G01N 33/5375 (2013.01); G01N 33/57492 (2013.01);
Abstract

A multi-phase system includes a phase-separated solution comprising at least two phases, each phase having a phase component selected from the group consisting of a polymer, a surfactant and combinations thereof, wherein at least one phase comprises a polymer, wherein the phases, taken together, represent a density gradient. Novel two-phase, three-phase, four-phase, five-phase, or six-phase systems are disclosed. Using the disclosed multi-phase polymer systems, particles, or other analyte of interest can be separated based on their different densities or affinities.


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