The Resource Plasmonic-enhanced fluorescent conjugated polymer chemosensor for ultra-sensitive detection of nitroaromatic vapors, by Charles Matthew Darr

Plasmonic-enhanced fluorescent conjugated polymer chemosensor for ultra-sensitive detection of nitroaromatic vapors, by Charles Matthew Darr

Label
Plasmonic-enhanced fluorescent conjugated polymer chemosensor for ultra-sensitive detection of nitroaromatic vapors
Title
Plasmonic-enhanced fluorescent conjugated polymer chemosensor for ultra-sensitive detection of nitroaromatic vapors
Statement of responsibility
by Charles Matthew Darr
Creator
Contributor
Author
Thesis advisor
Subject
Genre
Language
eng
Summary
Rapid degradation of fluorescent conjugated polymers in ambient conditions imposes severe restrictions on their utility for long-term, portable sensing applications. This dissertation discusses the combined use of low-density, ultra-thin oxide capping layers and plasmonic silver gratings as a means of improving the utility of fluorescent conjugated polymer ultra-thin films (<50 nm) for long-term, portable chem/bio sensing applications. Silver gratings produced by a low-cost micro-contact printing method enhanced emission of poly-[2-methoxy-5-(2-ethylhexyloxy)-p-phenylenevinylene] (MEH-PPV) by as much as 12-fold with respect to films on flat silver through a mechanism of surface plasmoncoupled emission, which directs specific emitted wavelengths toward the detection window of the fluorescence microscope. Addition of a low-density, ultra-thin silica capping layer (d = 5.07 nm, n = 1.38) improved MEH-PPV photostability significantly with respect to uncapped films under both short-term continuous illumination as well as long-term storage in dark, ambient air, while retaining a rapid quenching response to nitroaromatic vapors. Capped, plasmonic-enhanced MEH-PPV film showed a response to 2,4-dinitrotoluene vapor at a rate more than 7-fold faster than capped films on SiO2-coated silicon, attributed to a combination of sensitization effects of the silver on the conjugated polymer molecules in close proximity to the metal. Lateral diffusion of nitroaromatic vapor into the film is tracked by monitoring growth of quenched regions through fluorescence imaging. Most importantly, the devices recover fluorescence spontaneously on removal from the xvii nitroaromatic vapor source, suggesting they could be used for long-term, real-time measurements of nitroaromatic vapors
Cataloging source
MUU
http://library.link/vocab/creatorDate
1984-
http://library.link/vocab/creatorName
Darr, Charles Matthew
Degree
Ph.D.
Dissertation note
Dissertation
Dissertation year
2014.
Government publication
government publication of a state province territory dependency etc
Granting institution
University of Missouri--Columbia
Illustrations
illustrations
Index
no index present
Literary form
non fiction
Nature of contents
  • dictionaries
  • bibliography
  • theses
http://library.link/vocab/relatedWorkOrContributorName
  • Gangopadhyay, Shubhra
  • Polo-Parada, Luis
Label
Plasmonic-enhanced fluorescent conjugated polymer chemosensor for ultra-sensitive detection of nitroaromatic vapors, by Charles Matthew Darr
Instantiates
Publication
Copyright
Note
  • "December 2014."
  • "A Dissertation presented to the Faculty of the Graduate School at the University of Missouri--Columbia In Partial Fulfillment of the Requirements for the Degree Doctor of Philosophy."
  • Dissertation Supervisors: Dr. Shubhra Gangopadhyay and Dr. Luis Polo-Parada
  • Includes vita
Bibliography note
Includes bibliographical references (pages 98-117)
Carrier category
online resource
Carrier category code
  • cr
Carrier MARC source
rdacarrier.
Content category
text
Content type code
  • txt
Content type MARC source
rdacontent.
Control code
917609034
Extent
1 online resource (3 files)
Form of item
online
Media category
computer
Media MARC source
rdamedia.
Media type code
  • c
Other physical details
illustrations (some color)
Specific material designation
remote
System control number
(OCoLC)917609034
Label
Plasmonic-enhanced fluorescent conjugated polymer chemosensor for ultra-sensitive detection of nitroaromatic vapors, by Charles Matthew Darr
Publication
Copyright
Note
  • "December 2014."
  • "A Dissertation presented to the Faculty of the Graduate School at the University of Missouri--Columbia In Partial Fulfillment of the Requirements for the Degree Doctor of Philosophy."
  • Dissertation Supervisors: Dr. Shubhra Gangopadhyay and Dr. Luis Polo-Parada
  • Includes vita
Bibliography note
Includes bibliographical references (pages 98-117)
Carrier category
online resource
Carrier category code
  • cr
Carrier MARC source
rdacarrier.
Content category
text
Content type code
  • txt
Content type MARC source
rdacontent.
Control code
917609034
Extent
1 online resource (3 files)
Form of item
online
Media category
computer
Media MARC source
rdamedia.
Media type code
  • c
Other physical details
illustrations (some color)
Specific material designation
remote
System control number
(OCoLC)917609034

Library Locations

  • Health Sciences LibraryBorrow it
    2411 Holmes St, Kansas City, Kansas City, MO, 64108, US
    39.083418 -94.575323
  • LaBudde Special CollectionsBorrow it
    800 E 51st St, Kansas City, MO, 64110, US
    39.034642 -94.576835
  • Leon E. Bloch Law LibraryBorrow it
    500 E. 52nd Street, Kansas City, MO, 64110, US
    39.032488 -94.581967
  • Marr Sound ArchivesBorrow it
    800 E 51st St, Kansas City, MO, 64110, US
    39.034642 -94.576835
  • Miller Nichols LibraryBorrow it
    800 E 51st St, Kansas City, MO, 64110, US
    39.035061 -94.576518
  • UMKCBorrow it
    800 E 51st St, Kansas City, MO, 64110, US
    39.035061 -94.576518
  • UMKCBorrow it
    800 E 51st St, Kansas City, MO, 64110, US
Processing Feedback ...