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Title: Volatile chemical reagent detector

Abstract

A device for detecting volatile chemical reagents based on fluorescence quenching analysis that is capable of detecting neutral electron acceptor molecules. The device includes a fluorescent material, a contact region, a light source, and an optical detector. The fluorescent material includes at least one polymer-surfactant complex. The polymer-surfactant complex is formed by combining a fluorescent ionic conjugated polymer with an oppositely charged surfactant. The polymer-surfactant complex may be formed in a polar solvent and included in the fluorescent material as a solution. Alternatively, the complex may be included in the fluorescent material as a thin film. The use of a polymer-surfactant complex in the fluorescent material allows the device to detect both neutral and ionic acceptor molecules. The use of a polymer-surfactant complex film allows the device and the fluorescent material to be reusable after exposing the fluorescent material to a vacuum for limited time.

Inventors:
; ; ;
Issue Date:
Research Org.:
Univ. of California, Oakland, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1174991
Patent Number(s):
6780379
Application Number:
10/003,743
Assignee:
University Of California, The Regents Of
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Chen, Liaohai, McBranch, Duncan, Wang, Rong, and Whitten, David. Volatile chemical reagent detector. United States: N. p., 2004. Web.
Chen, Liaohai, McBranch, Duncan, Wang, Rong, & Whitten, David. Volatile chemical reagent detector. United States.
Chen, Liaohai, McBranch, Duncan, Wang, Rong, and Whitten, David. Tue . "Volatile chemical reagent detector". United States. https://www.osti.gov/servlets/purl/1174991.
@article{osti_1174991,
title = {Volatile chemical reagent detector},
author = {Chen, Liaohai and McBranch, Duncan and Wang, Rong and Whitten, David},
abstractNote = {A device for detecting volatile chemical reagents based on fluorescence quenching analysis that is capable of detecting neutral electron acceptor molecules. The device includes a fluorescent material, a contact region, a light source, and an optical detector. The fluorescent material includes at least one polymer-surfactant complex. The polymer-surfactant complex is formed by combining a fluorescent ionic conjugated polymer with an oppositely charged surfactant. The polymer-surfactant complex may be formed in a polar solvent and included in the fluorescent material as a solution. Alternatively, the complex may be included in the fluorescent material as a thin film. The use of a polymer-surfactant complex in the fluorescent material allows the device to detect both neutral and ionic acceptor molecules. The use of a polymer-surfactant complex film allows the device and the fluorescent material to be reusable after exposing the fluorescent material to a vacuum for limited time.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2004},
month = {8}
}

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Works referenced in this record:

Tuning the Properties of Conjugated Polyelectrolytes through Surfactant Complexation
journal, September 2000


Highly sensitive biological and chemical sensors based on reversible fluorescence quenching in a conjugated polymer
journal, October 1999


Fluorescent Porous Polymer Films as TNT Chemosensors:  Electronic and Structural Effects
journal, November 1998