Search Results - "Guicheteau, Jason A."

Toward Understanding the Influence of Intermolecular Interactions and Molecular Orientation on the Chemical Enhancement of SERS by Cabalo, Jerry, Guicheteau, Jason A, Christesen, Steven

“…Implementation of SERS as an analytical technique is limited because the factors that govern the enhancement of individual vibrational modes are not well…”
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Critical Role of Adsorption Equilibria on the Determination of Surface-Enhanced Raman Enhancement by Tripathi, Ashish, Emmons, Erik D, Fountain, Augustus W, Guicheteau, Jason A, Moskovits, Martin, Christesen, Steven D

“…Surface-enhanced Raman spectroscopy (SERS) is a useful technique for probing analyte–noble metal interactions and determining thermodynamic properties such as…”
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Recent Advances and Remaining Challenges for the Spectroscopic Detection of Explosive Threats by Fountain, Augustus W., Christesen, Steven D., Moon, Raphael P., Guicheteau, Jason A., Emmons, Erik D.

“…In 2010, the U.S. Army initiated a program through the Edgewood Chemical Biological Center to identify viable spectroscopic signatures of explosives and…”
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Ultraviolet Resonance Raman Spectroscopy of Explosives in Solution and the Solid State by Emmons, Erik D, Tripathi, Ashish, Guicheteau, Jason A, Fountain, Augustus W, Christesen, Steven D

“…Resonance Raman cross sections of common explosives have been measured by use of excitation wavelengths in the deep-UV from 229 to 262 nm. These measurements…”
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Optimization of Surface-Enhanced Raman Spectroscopy Conditions for Implementation into a Microfluidic Device for Drug Detection by Kline, Neal D, Tripathi, Ashish, Mirsafavi, Rustin, Pardoe, Ian, Moskovits, Martin, Meinhart, Carl, Guicheteau, Jason A, Christesen, Steven D, Fountain, Augustus W

“…A microfluidic device is being developed by University of California–Santa Barbara as part of a joint effort with the United States Army to develop a portable,…”
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Quantitative Raman Cross-Sections and Band Assignments for Fentanyl and Fentanyl Analogs by Wilcox, Phillip G., Emmons, Erik D., Pardoe, Ian J., Kline, Neal D., Guicheteau, Jason A.

“…Raman cross sections and spectra were measured for five synthetic opioid fentanyl analogs: fentanyl citrate, sufentanil citrate, alfentanil HCl, carfentanil…”
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Foundry-based waveguide-enhanced Raman spectroscopy in the visible by Tyndall, Nathan F, Emmons, Erik D, Pruessner, Marcel W, Rabinovich, William S, Wilcox, Phillip G, Tripathi, Ashish, Guicheteau, Jason A, Stievater, Todd H

“…Waveguide-enhanced Raman spectroscopy (WERS) is an analytical technique frequently employed for chemical and biological sensing. Operation at visible…”
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Kinetics and Reaction Mechanisms of Thiophenol Adsorption on Gold Studied by Surface-Enhanced Raman Spectroscopy by Tripathi, Ashish, Emmons, Erik D, Christesen, Steven D, Fountain, Augustus W, Guicheteau, Jason A

“…Thiophenol is commonly used as a model system for surface-enhanced Raman scattering (SERS) of molecules due to the strong affinity of the −SH group toward…”
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Molecular Structure and Solvent Factors Influencing SERS on Planar Gold Substrates by Tripathi, Ashish, Emmons, Erik D, Kline, Neal D, Christesen, Steven D, Fountain, Augustus W, Guicheteau, Jason A

“…Adsorption of analytes on surface enhanced Raman scattering (SERS) active nanometallic substrates is influenced by a variety of factors, including…”
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Identification of Nucleophilic and Electrophilic Binding Sites on Gold Surface-Enhanced Raman Substrates by Tripathi, Ashish, Emmons, Erik D, Fountain, Augustus W, Christesen, Steven D, Guicheteau, Jason A

“…We have studied the binding of several nitrogen-containing aromatic chemicals to nanostructured gold surfaces from aqueous media in order to better understand…”
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Semi-Automated Detection of Trace Explosives in Fingerprints on Strongly Interfering Surfaces with Raman Chemical Imaging by Tripathi, Ashish, Emmons, Erik D., Wilcox, Phillip G., Guicheteau, Jason A., Emge, Darren K., Christesen, Steven D., Fountain, Augustus W.

“…We have previously demonstrated the use of wide-field Raman chemical imaging (RCI) to detect and identify the presence of trace explosives in contaminated…”
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Characterization of Polymorphic States in Energetic Samples of 1,3,5-Trinitro-1,3,5-Triazine (RDX) Fabricated Using Drop-on-Demand Inkjet Technology by Emmons, Erik D., Farrell, Mikella E., Holthoff, Ellen L., Tripathi, Ashish, Green, Norman, Moon, Raphael P., Guicheteau, Jason A., Christesen, Steven D., Pellegrino, Paul M., Fountain, Augustus W.

“…The United States Army and the first responder community are evaluating optical detection systems for the trace detection of hazardous energetic materials…”
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Surface-Enhanced Raman Scattering (SERS) Evaluation Protocol for Nanometallic Surfaces by Guicheteau, Jason A., Farrell, Mikella E., Christesen, Steven D., Fountain, Augustus W., Pellegrino, Paul M., Emmons, Erik D., Tripathi, Ashish, Wilcox, Phillip, Emge, Darren

“…We present the results of a three-year collaboration between the U.S. Army Edgewood Chemical Biological Center and the U.S. Army Research Laboratory-Aldelphi…”
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Bioaerosol Analysis with Raman Chemical Imaging Microspectroscopy by Tripathi, Ashish, Jabbour, Rabih E, Guicheteau, Jason A, Christesen, Steven D, Emge, Darren K, Fountain, Augustus W, Bottiger, Jerold R, Emmons, Erik D, Snyder, A. Peter

“…Raman chemical imaging microspectroscopy is evaluated as a technology for waterborne pathogen and bioaerosol detection. Raman imaging produces a…”
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Comparison of Visible and Near-Infrared Raman Cross-Sections of Explosives in Solution and in the Solid State by Emmons, Erik D., Guicheteau, Jason A., Fountai, Augustus W., Christesen, Steven D.

“…Raman cross-sections of explosives in solution and in the solid state have been measured using visible and near-infrared excitation via secondary calibration…”
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Surface-Enhanced Raman Spectroscopy for Detection of Threat Chemicals with Portable Raman Spectrometers by Emmons, Erik D., Tripathi, Ashish, Guicheteau, Jason A.

“…We are demonstrating surface-enhanced Raman spectroscopy using compact Raman spectrometers for field detection of trace-level threat materials. The goal is to…”
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Fiber-Coupled Waveguide-Enhanced Raman Spectroscopy of Trace Vapors by Tyndall, Nathan F., Butt, Jordan N., Walsh, Kyle J., Emmons, Erik D., Hung, Kevin, Roese, Erik, Wilcox, Phillip G., Guicheteau, Jason A., Pruessner, Marcel W., McGill, R. A., Striemer, Christopher C., Pennington, Graham S., Stievater, Todd H.

“…We report the first Raman detection of trace vapors with a fiber-attached photonic integrated circuit. We detected DMSO and MeS vapor with waveguide-enhanced…”
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