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Title: System and method for measuring fluorescence of a sample

Abstract

The present disclosure provides a system and a method for measuring fluorescence of a sample. The sample may be a polymerase-chain-reaction (PCR) array, a loop-mediated-isothermal amplification array, etc. LEDs are used to excite the sample, and a photodiode is used to collect the sample's fluorescence. An electronic offset signal is used to reduce the effects of background fluorescence and the noises from the measurement system. An integrator integrates the difference between the output of the photodiode and the electronic offset signal over a given period of time. The resulting integral is then converted into digital domain for further processing and storage.

Inventors:
Issue Date:
Research Org.:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1174184
Patent Number(s):
8988684
Application Number:
13/228,361
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA)
Patent Classifications (CPCs):
C - CHEMISTRY C12 - BIOCHEMISTRY C12Q - MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
DOE Contract Number:  
AC52-07NA27344
Resource Type:
Patent
Resource Relation:
Patent File Date: 2011 Sep 08
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Riot, Vincent J. System and method for measuring fluorescence of a sample. United States: N. p., 2015. Web.
Riot, Vincent J. System and method for measuring fluorescence of a sample. United States.
Riot, Vincent J. Tue . "System and method for measuring fluorescence of a sample". United States. https://www.osti.gov/servlets/purl/1174184.
@article{osti_1174184,
title = {System and method for measuring fluorescence of a sample},
author = {Riot, Vincent J},
abstractNote = {The present disclosure provides a system and a method for measuring fluorescence of a sample. The sample may be a polymerase-chain-reaction (PCR) array, a loop-mediated-isothermal amplification array, etc. LEDs are used to excite the sample, and a photodiode is used to collect the sample's fluorescence. An electronic offset signal is used to reduce the effects of background fluorescence and the noises from the measurement system. An integrator integrates the difference between the output of the photodiode and the electronic offset signal over a given period of time. The resulting integral is then converted into digital domain for further processing and storage.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2015},
month = {3}
}

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patent-application, November 2004


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patent-application, March 2008


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patent-application, January 2010