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.

Patent No.:

US 6887359 B1

PDF
Full Text
Expired
Date of Patent:
May. 03, 2005

Filed:

Jun. 08, 2001
Applicant:

Anthony J. Ruggiero, Livermore, CA (US);

Inventor:

Anthony J. Ruggiero, Livermore, CA (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01N027/447 ; G01N027/453 ; G01N030/74 ;
U.S. Cl.
CPC ...
Abstract

An integrated optical capillary electrophoresis system for analyzing an analyte. A modulated optical pump beam impinges on an capillary containing the analyte/buffer solution which is separated by electrophoresis. The thermally-induced change in the index of refraction of light in said electrophoresis capillary is monitored using an integrated micro-interferometer. The interferometer includes a first interferometer arm intersecting the electrophoresis capillary proximate the excitation beam and a second, reference interferometer arm. Changes in index of refraction in the analyte measured by interrogating the interferometer state using white light interferometry and a phase-generated carrier demodulation technique. Background thermo-optical activity in the buffer solution is cancelled by splitting the pump beam and exciting pure buffer solution in a second section of capillary where it crosses the reference arm of the interferometer.


Find Patent Forward Citations

Ruggiero, Anthony. (2005). Chemical micro-sensor (U.S. Patent No. 6887359). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6887359

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