Non-marking Collection of Amino Acids from Fingerprints Using Hydrogels

Book chapter (2019)

Authors

W. van Helmond Nederlands Forensisch Instituut (NFI), Hogeschool van Amsterdam

V. O'Brien

R. de Jong Nederlands Forensisch Instituut (NFI)

J.H. van Esch ChemE/Advanced Soft Matter -

S. Oldenhof ChemE/Advanced Soft Matter - , Nederlands Forensisch Instituut (NFI)

M. de Puit OLD ChemE/Organic Materials and Interfaces , Nederlands Forensisch Instituut (NFI)

Research Group

ChemE/Advanced Soft Matter () (TU Delft)

Hydrogel Fingerprint Amino acid analysis UPLC-MS Non-marking

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Published Date

2019

Language

English

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Faculty

Applied Sciences

Department

ChemE/Chemical Engineering

Research Group

ChemE/Advanced Soft Matter

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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