ISIS Neutron and Muon Source Data Journal

Surfactant Adsorption in Multi Metal Deposition Fingerprint Enhancement

Abstract: Multi metal deposition (MMD) is a new latent fingerprint enhancement technique that is extremely effective on plastics, including drug wraps and explosives wrapping; it is also a potential reagent for the newly introduced polymer banknotes. Traditional Physical Developer involves deposition of a single metal (Ag) while MMD involves prior deposition of Au nanoparticles that act as nucleation sites for Ag deposition, resulting in enhanced visual contrast & greater recovery quality. MMD formulations include a non-ionic surfactant, whose presence is critical to stability and efficacy, but the means by which this is accomplished is not known: elucidating this is the key objective. We have recently demonstrated the capability of reflectivity to characterise the role of the surfactants on Ag. Here, we extend this capability to determine the structure and role of the surfactant (on Au) in MMD.

Public release date: 20 November 2021

Principal Investigator: Professor Robert Hillman
Experimenter: Dr Rob Barker
Local Contact: Dr Nina-Juliane Steinke
Experimenter: Miss Chloe Reeder
Experimenter: Dr Jodie Coulston
Experimenter: Ms Mariyam Ula
Experimenter: Dr Emma Smith
Experimenter: Professor Karl Ryder
Experimenter: Miss Emma Palin

DOI: 10.5286/ISIS.E.99688521

Parent DOI: 10.5286/ISIS.E.RB1820554

ISIS Experiment Number: RB1820554

Part Number: 1

Date of Experiment: 15 November 2018

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
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Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Professor Robert Hillman et al; (2018): Surfactant Adsorption in Multi Metal Deposition Fingerprint Enhancement, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.99688521