ArticleScientific reports2023
Targeting cell-derived markers to improve the detection of invisible biological traces for the purpose of genetic-based criminal identification.
Article in Scientific reports, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Impact of face-derived DNA on touch DNA deposition on cell phone screens.International journal of legal medicine · 2026Article
- A Versatile Cytochemical Labeling Technique as a Forensic Decision-Support Tool forAnalytical chemistry · 2025Article
- Epigenomic regulation of stemness contributes to the low immunogenicity of the most mutated human cancer.Cell reports · 2025Article
- Accelerated Aging of Tapes Applied to Secure Criminal Contact Traces-Effect on Physio-Mechanical and Safety Behavior.Materials (Basel, Switzerland) · 2025Article
- Detection of invisible biological traces in relation to the physicochemical properties of substrates surfaces in forensic casework.Scientific reports · 2024Article
Corrections and comments
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Authors and funding
9 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
At a crime scene, investigators are faced with a multitude of traces. Among them, biological traces are of primary interest for the rapid genetic-based identification of individuals. "Touch DNA" consists of invisible biological traces left by the simple contact of a person's skin with objects. To date, these traces remain undetectable with the current methods available in the field. This study proposes a proof-of-concept for the original detection of touch DNA by targeting cell-derived fragments in addition to DNA. More specifically, adhesive-structure proteins (laminin, keratin) as well as carbohydrate patterns (mannose, galactose) have been detected with keratinocyte cells derived from a skin and fingermark touch-DNA model over two months in outdoor conditions. Better still, this combinatory detection strategy is compatible with DNA profiling. This proof-of-concept work paves the way for the optimization of tools that can detect touch DNA, which remains a real challenge in helping investigators and the delivery of justice.
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