ArticleScientific reports2026
Aging analysis of latent fingerprint residues by tracking carotenoid and lipid degradation by Raman spectroscopy.
Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Fingermarks have been crucial in forensic investigations for centuries, aiding in both individual identification and crime scene reconstruction. However, a reliable method for dating fingerprints found at crime scenes remains elusive. This study explores the use of Raman spectroscopy to analyze the chemical composition of latent fingermarks residues and track changes over time, specifically within 90 days of deposition. Fingermarks from three male donors were collected and aged under controlled conditions. Raman spectra revealed several chemical markers, with carotenoids showing a significantly faster degradation rate than lipids, following first-order kinetics and varying among donors. Both carotenoids and lipids underwent molecular changes, with carotenoids shifting from trans to cis-isomers, and lipids from cis to trans. These transformations led to oxidation processes and the generation of by-products. Lipid degradation showed a gradual decrease in unsaturated bonds during the first 40 days, followed by a more rapid decline. Raman data also indicated continuous lipid hydrolysis over time. The study provides insights into the chemical aging of fingermarks and suggests that Raman spectroscopy could become a useful non-destructive method for estimating the age of fingermarks in forensic applications.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.