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Luminescent nanomaterials for developing high-contrast latent fingerprints.
Nanotechnology
October 2024
Department of Physics, Maitreyi College, University of Delhi, New Delhi 110021, India.
Fingerprint patterns (or epidermal ridges) are by far one of the most reliable techniques for individual identification. Fingerprint patterns get deposited on all kinds of solid surfaces due to human transudation or exudation process. Bodily fluids through sweat glands contain moisture, natural oils and proteins.
View Article and Find Full Text PDFOptimisation and validation of cost-effective water-based solutions of acid fuchsin for detecting fingermarks in blood.
Forensic Sci Int
October 2024
Quality Management Section, Forensic Services Group, Queensland Police Service, Brisbane, QLD 4000, Australia. Electronic address:
Fingermark impressions in blood are commonly encountered at violent crime scenes and represent a critical trace that can link an individual to the scene. A range of techniques are available for detecting and enhancing bloody impressions; however, many chemical methods involve using hazardous solvents or require alternative light sources to visualise fluorescence. This is particularly challenging for bloody impressions on dark substrates.
View Article and Find Full Text PDFA stain with all the fixing's - Enhancement of fingermarks in blood using a combined fixative and aqueous protein stain.
Forensic Sci Int
October 2024
Forensic Evidence and Technical Services Command, New South Wales Police Force, Australia. Electronic address:
The use of protein stains to enhance fingermark ridge detail in blood is a common technique used by forensic practitioners around the world. Amido Black is one of the most favoured protein stains due to its strong staining ability. The most common formulation of Amido Black is methanol based, with an ability to simultaneously fix and stain the blood impression, however methanol is toxic and can disrupt some surfaces, potentially compromising fingermark detail.
View Article and Find Full Text PDFBRCA1 gene polymorphism and finger dermatoglyphic patterns in Ghanaian breast cancer patients: a quantitative cross-sectional approach.
Pan Afr Med J
March 2023
Department of Anatomy, University of Ghana Medical School, University of Ghana, Accra, Ghana.
Introduction: breast cancer development is linked to mutant single nucleotide polymorphism of breast cancer type 1 (BRCA1) gene usually harboured within exon 11. It has also been linked to finger dermatoglyphics where certain patterns have been associated with breast cancer. This study suggests a possible relationship between finger dermatoglyphic patterns and single nucleotide polymorphism of BRCA1 gene.
View Article and Find Full Text PDFMolecular docking study on europium nanoparticles and mussel adhesive protein for effective detection of latent fingerprints.
Biomarkers
February 2023
Department of Biotechnology, Manipal Institute of Technology Bengaluru, Manipal Academy of Higher Education, Manipal, India.
Reflecting on the difficulty of finding the evidence of latent fingerprints on wet and rough surfaces, scientists need to visualise those fingermarks without any background interference and stable adhesion of visualising material over the fingermark residues. To stabilize the interaction with the fingermarks, the synthesized nanoparticles were conjugated with a highly adhesive biopolymer, Mussel Adhesive Protein (MAP) which can effectively interact with fingerprint deposits. Rare earth metal, europium oxide and nanoparticles were used as a visualisation material to get high contrast and reduced background interference-based fingerprints.
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