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Tunable, Self-curing Polymers for the Forensic Collection of Latent Signatures from Within Porous Materials

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Author
Chipuk, Joseph
Kendall, Kirby
Mazzitelli, Carolyn
Straight, Stephen
Reaves, Melissa
Chamberlin, Sara
Date
2012-05
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Abstract
"Self-curing polysiloxane polymers have been developed for the forensic collection of latent signatures of explosives, organophosphates, and chemical warfare agent (CWA) degradation products. These polymeric materials penetrate the sample substrate as viscous liquids and subsequently harden to a semi-soft solid that can be peeled away from the substrate to extract signatures via the noncovalent interaction of the newly formed polymeric material with the analytes buried within the substrate. This paper discusses experiments aimed at altering the chemical and physical properties of the polysiloxane sampling materials to optimize signature recovery from porous substrates. The utility of this approach is demonstrated by the collection of target analytes from within concrete. The recovery of these signatures using the self curing polymeric formulations is compared to current operational sampling alternatives such as adhesive fingerprint lifters and swabs. Demonstration of the preparation, extraction, and analytical methods for the detection of the target analytes is also presented."
Description
This article appeared in Homeland Security Affairs (May 2012), supplement 5, article 5
Rights
The copyright of all articles published in Homeland Security Affairs rests with the author[s] of the articles. Any commercial use of Homeland Security Affairs or the articles published herein is expressly prohibited without the written consent of the copyright holder. Anyone can copy, distribute, or reuse these articles as long as the author and original source are properly cited.
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http://hdl.handle.net/10945/25006
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  • Faculty and Researchers' Publications
  • Homeland Security Affairs (Journal)

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