TY - JOUR
T1 - On the autofluorescence of fingermarks
AU - Lambrechts, S. A. G.
AU - van Dam, A. [=Annemieke]
AU - de Vos, J.
AU - van Weert, A.
AU - Sijen, T.
AU - Aalders, M. C. G.
PY - 2012
Y1 - 2012
N2 - The autofluorescence of fingermarks is used for their detection. The components responsible for this autofluorescence are largely unknown. Thin layer chromatography and fluorescence spectroscopy were used to identify autofluorescent components and evaluate their forensic value. Based on our results, tryptophan is hypothesized to be a major contributor to the autofluorescence when part of peptides or proteins, id est, not in its free form. Part of the autofluorescence could be assigned to a kynurenine derivative. Pheophorbide A, a metabolite of chlorophyll, is inferred as a red fluorescent fingermark component. Chlorophyll is a plant pigment which implies that dietary information can potentially be retrieved from fingermarks. (C) 2012 Elsevier Ireland Ltd. All rights reserved
AB - The autofluorescence of fingermarks is used for their detection. The components responsible for this autofluorescence are largely unknown. Thin layer chromatography and fluorescence spectroscopy were used to identify autofluorescent components and evaluate their forensic value. Based on our results, tryptophan is hypothesized to be a major contributor to the autofluorescence when part of peptides or proteins, id est, not in its free form. Part of the autofluorescence could be assigned to a kynurenine derivative. Pheophorbide A, a metabolite of chlorophyll, is inferred as a red fluorescent fingermark component. Chlorophyll is a plant pigment which implies that dietary information can potentially be retrieved from fingermarks. (C) 2012 Elsevier Ireland Ltd. All rights reserved
U2 - https://doi.org/10.1016/j.forsciint.2012.05.004
DO - https://doi.org/10.1016/j.forsciint.2012.05.004
M3 - Article
C2 - 22658744
SN - 0379-0738
VL - 222
SP - 89
EP - 93
JO - Forensic Science International
JF - Forensic Science International
IS - 1-3
ER -