Towards Fingermark Dating: A Raman Spectroscopy Proof‐of‐Concept Study

Abstract: Fingermarks have, for a long time, been vital in the forensic community for the identification of individuals, and a possibility to non‐destructively date the fingermarks would of course be beneficial. Raman spectroscopy is, herein, evaluated for the purpose of estimating the age of fingermarks deposits. Well‐resolved spectra were non‐destructively acquired to reveal spectral uniqueness, resembling those of epidermis, and several molecular markers were identified that showed different decay kinetics: carotenoids > squalene > unsaturated fatty acids > proteins. The degradation rates were accelerated, less pronounced for proteins, when samples were stored under ambient light conditions, likely owing to photo‐oxidation. It is hypothesized that fibrous proteins are present and that oxidation of amino acid side chains can be observed both through Raman and fluorescence spectroscopy. Clearly, Raman spectroscopy is a useful technique to non‐destructively study the aging processes of fingermarks.

Angaben zum Objekt

• Standort: Deutsche Nationalbibliothek Frankfurt am Main
• Umfang: Online-Ressource
• Sprache: Englisch

Verweise und Beziehungen

• Erschienen in: Towards Fingermark Dating: A Raman Spectroscopy Proof‐of‐Concept Study ; volume:6 ; number:6 ; year:2017 ; pages:706-709 ; extent:4 ; ChemistryOpen ; 6, Heft 6 (2017), 706-709 (gesamt 4)

Beteiligte, Orts- und Zeitangaben

• Urheber: Andersson, Per Ola ; Lejon, Christian ; Mikaelsson, Therese ; Landström, Lars

Weitere Informationen

• DOI: 10.1002/open.201700129
• URN: urn:nbn:de:101:1-2022100508084350222793
• Rechteinformation: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Letzte Aktualisierung: 22.08.2025, 12:37 MESZ