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:
Feb. 20, 2018

Filed:

May. 11, 2015
Applicant:

The Regents of the University of California, Oakland, CA (US);

Inventors:

Abraham P. Lee, Irvine, CA (US);

Javier Lopez-Prieto, Cambridge, MA (US);

Robert Lin, Berkeley, CA (US);

Melinda Simon, Irvine, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12Q 1/68 (2006.01); G01N 27/04 (2006.01); G01N 33/487 (2006.01);
U.S. Cl.
CPC ...
C12Q 1/686 (2013.01); G01N 27/04 (2013.01); G01N 33/48707 (2013.01);
Abstract

A method for detecting presence of a macromolecule of interest in a test droplet. A set of detection electrodes are provided in contact with a fluidic channel. The test droplet is provided in vicinity of the detection electrodes through the fluidic channel. An alternate current (AC) power at a first frequency is applied across the set of detection electrodes. A first measurement value that reflects electrical characteristics (e.g., impedance) of the test droplet at the first frequency is obtained. This value is compared with a corresponding reference value, wherein the corresponding reference value is obtained by measuring a reference droplet containing the macromolecule of interest or free of the macromolecule at the first frequency. The presence of the macromolecule in the test droplet is thus determined based on the comparison.


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