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Published on: June 24, 2019
Non-marking Collection of Amino Acids from Fingerprints Using Hydrogels
Ward van Helmond1,2, Vincent O'Brien3, Robin de Jong2
1Department of Forensic Science, Amsterdam University of Applied Sciences, Amsterdam, The Netherlands.
Abstract:
The amino acid profile obtained from a fingerprint may provide valuable information on its donor. Unfortunately, the collection of chemicals from the fingerprint is often destructive to the fingerprint ridge detail. Herein we detail the use of cross-linkable solutions of dextran-methacrylate to form hydrogels capable of collecting amino acids from surfaces followed by extraction and quantification with UPLC-MS. This method allows for the amino acid profile analysis of fingerprints while allowing for their increased visualization at a later stage using the standard method of cyanoacrylate fuming followed by basic-yellow dyeing.
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