The marked rise in criminal activity in society has made a difficult task for forensic scientists who aim to track any crime scene effectively, therefore visualization of latent fingerprints (LFPs) plays an increasingly vital role in forensics. In the present report, a highly sensitive solvatochromism, aggregation-induced emission-based 2-(4-nitrophenyl)-3H-benzocoumarin fluorescent dye (CFD) was fabricated using an ultrasonication protocol. The fluorescence properties of the CFD were analyzed using fluorescence spectrophotometer. The CFD produced a greenish yellow emission in solid and fluid states. An in-depth visualization of LFPs showed detailed ridge patterns under normal and ultraviolet light sources (254 and 365 nm) due to the excellent chemisorption of CFD onto the ridge patterns on the finger. All three types of ridge details were visualized without any background interference when using a simple and quick powder dusting method. Results revealed that, the present fluorescent dye can be used successfully for detection of latent fingerprints (LFPs) on various nonporous substrates surfaces, in organic light-emitting diodes applications (OLEDs), and for electrochemical sensing.
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http://dx.doi.org/10.1002/bio.4027 | DOI Listing |
J Forensic Sci
January 2025
LIMA, Instituto de Química, Universidade de Brasília-UnB, Brasília, Brazil.
Fingermarks are important forensic evidence for identifying people. In this work, luminescent MOF [Eu(BDC)(HO)] (herein referred as EuBDC) was tested as a potential latent fingermark (LF) luminescent developer powder and its acute toxicity evaluated following OECD protocol 423. The results showed that the powder can develop groomed LF on materials such as leather, plastic, metal, glass, cardboard, and aluminum.
View Article and Find Full Text PDFForensic Sci Med Pathol
January 2025
School of Biochemistry and Biotechnology, University of the Punjab, Lahore, Pakistan.
Matrix-assisted laser Desorption/Ionization Mass Spectrometry Imaging (MALDI MSI) is an analytical technique used for the spatial mapping of drugs, explosives, and organic samples, making it a game-changer in Forensic examination. It detects a wide range of biomolecules in their native state without specific tags, antibodies, labels, and dyes. This review aims to highlight the advancement of MALDI-MSI over time and its impact on Forensic Science due to high-resolution molecular imaging.
View Article and Find Full Text PDFForensic Sci Int
January 2025
King's Forensics, Department of Analytical, Environmental and Forensic Sciences, King's College London, 150 Stamford Street, London SE1 9NH, UK. Electronic address:
Wildlife forensics is a relatively underexplored field of science. It provides forensic evidence to support legal investigations involving wildlife crime, such as the trafficking and poaching of animals and/or their goods. The consequences of poaching are not just limited to a decline in animal welfare and include the spread of zoonotic disease, species, cultural and habitat loss, and injury of anti-poaching rangers.
View Article and Find Full Text PDFJ Fluoresc
January 2025
Institute of Chemical Technology, Matunga, Mumbai, India.
This study introduces an innovative approach to high-resolution latent fingerprint detection using carbon quantum dots (CQDs) biosynthesized from spent coffee grounds, enhanced with nitrogen doping. Conventional fingerprinting methods frequently use hazardous chemicals and are costly, highlighting the need for eco-friendly, affordable alternatives that preserve detection quality. The biosynthesized nitrogen-doped CQDs exhibit strong photoluminescence and high stability, offering a sustainable, effective alternative for fingerprint imaging.
View Article and Find Full Text PDFForensic Sci Int
December 2024
Biological and Environmental Sensing Research Unit, King Abdullah Institute for Nanotechnology, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; Department of Physics and Astronomy, College of Science, King Saud University, Riyadh 11451, Saudi Arabia. Electronic address:
The forensic Deoxyribonucleic Acid (DNA) fingerprinting is a tool for investigating crime scenes by identifying/tracing criminals and linking crime scenes. However, in cases where experts are unable to detect and identify any biological traces or human-derived cells at the crime scene or while testing the samples in the laboratories, all the advantages offered by forensic laboratories lose their significance. It becomes a waste of time, effort, and resources allocated to these laboratories.
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