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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Jones, Bj
Abertay University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (31/31 displayed)
- 2024Developing fingermarks on circulated scottish banknotes
- 2022Degradation of polymer banknotes through handling, and effect on fingermark visualisationcitations
- 2020The optimisation of fingermark enhancement by VMD and Lumicyano™ on thermal papercitations
- 2016Sticking non-stickcitations
- 2014The effect of substrate geometry and surface orientation on the film structure of DLC deposited using PECVDcitations
- 2014Determining the chronology of deposition of natural fingermarks and inks on paper using secondary ion mass spectrometrycitations
- 2014Determining the chronology of deposition of natural fingermarks and inks on paper using secondary ion mass spectrometrycitations
- 2013The effects of polymer pigmentation on fingermark development techniquescitations
- 2012Substrate and material transfer effects on the surface chemistry and texture of diamond-like carbon deposited by plasma-enhanced chemical vapour depositioncitations
- 2011Argon plasma treatment techniques on steel and effects on diamond-like carbon structure and delaminationcitations
- 2010University challengecitations
- 2010Diamond-like carbon coating of alternative metal alloys for medical and surgical applicationscitations
- 2010Nano-scale composition of commercial white powders for development of latent fingerprints on adhesivescitations
- 2009Diamond-like carbon / epoxy low-friction coatings to replace electroplated chromiumcitations
- 2009Diamond-like carbon/epoxy low-friction coatings to replace electroplated chromiumcitations
- 2009Structure and tribological performance of diamond-like carbon based coatings for aerospace component processingcitations
- 2009Electronic properties of SnO2-based ceramics with double function of varistor and humidity sensor
- 2008In diamond health
- 2008Nano-scale analysis of titanium dioxide fingerprint-development powderscitations
- 2008Energy efficiency improvements in dry drilling with optimised diamond-like carbon coatingscitations
- 2008Sparkling touchdown
- 2008Effect of sintering temperature and heat treatment on electrical properties of indium oxide based ceramics
- 2007Energy Efficiency Improvements in Dry Drilling with Optimised Diamond-Like Carbon Coatingcitations
- 2005Electron paramagnetic resonance evaluation of defects at the (100)Si/Al2O3 interfacecitations
- 2005Analysis of defects at the interface between high-k thin films and (1 0 0) siliconcitations
- 2003An EPR study at X- and W-band of defects in a-Ccitations
- 2003An EPR study at X- and W-band of defects in a-C:H films in the temperature range 5-300K
- 2002Electronic properties of amorphous carbon nitride a-C1-xNxcitations
- 2001Electron delocalization in amorphous carbon by ion implantation
- 2001Electron paramagnetic resonance study of ion implantation induced defects in amorphous hydrogenated carbon
- 2001Electron paramagnetic resonance study of ion implantation induced defects in amorphous hydrogenated carboncitations
Places of action
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article
Nano-scale analysis of titanium dioxide fingerprint-development powders
Abstract
<p>Titanium dioxide based powders are regularly used in the development of latent fingerprints on dark surfaces. For analysis of prints on adhesive tapes, the titanium dioxide is suspended in a surfactant and used in the form of a small particle reagent (SPR). Analysis of commercially available products shows varying levels of effectiveness of print development, with some powders adhering to the background as well as the print. Scanning electron microscopy (SEM) images of prints developed with different powders show a range of levels of aggregation of particles. Analytical transmission electron microscopy (TEM) of the fingerprint powder shows TiO<sub>2</sub> particles with a surrounding coating, tens of nanometres thick, consisting of Al and Si rich material. X ray photoelectron spectroscopy (XPS) is used to determine the composition and chemical state of the surface of the powders; with a penetration depth of approximately 10nm, this technique demonstrates differing Ti: Al: Si ratios and oxidation states between the surfaces of different powders. Levels of titanium detected with this technique demonstrate variation in the integrity of the surface coating. The thickness, integrity and composition of the Al/Si-based coating is related to the level of aggregation of TiO<sub>2</sub> particles and efficacy of print development.</p>