Characterization of electrochemically visualized latent fingerprints

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F25%3A43932261" target="_blank" >RIV/60461373:22340/25:43932261 - isvavai.cz</a>
Alternative codes found
RIV/60461373:22810/25:43932261
Result on the web
<a href="https://doi.org/10.1007/s00706-025-03355-z" target="_blank" >https://doi.org/10.1007/s00706-025-03355-z</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s00706-025-03355-z" target="_blank" >10.1007/s00706-025-03355-z</a>

Result language
angličtina
Original language name
Characterization of electrochemically visualized latent fingerprints
Original language description
This work presents an electrochemical approach to the visualization of fingerprints on brass cartridges with the aim of characterizing how visualization using polyphenazine dyes affects latent fingerprints. After visualization using cyclic voltammetry and chronoamperometry, the individual layers (substrate/fingerprint/polymer film) and their interfaces were characterized profilometrically, spectroscopically by Fourier transform infrared spectroscopy (FT-IR) and via scanning electron microscopy (SEM). The morphology and surface quality observed by SEM revealed the size of the particles formed from both electrochemically deposited polymer films. Profilometry showed the homogeneity and surface roughness of the deposited layers. It was found that poly(toluidine blue) forms a thinner homogeneous layer with better adhesion to the brass substrate than the poly(neutral red) film. Based on the FT-IR spectra, it can be concluded that the polymer films of the dyes were deposited on the surface of the substrates as a result of the observed changes and band intensities belonging to the mono- and polymer forms of neutral red and toluidine blue, respectively. The electrochemical visualization method proved to be effective, gentle, and relatively fast.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Project
<a href="/en/project/VK01010022" target="_blank" >VK01010022: Advanced techniques of visualization of dactyloscopic traces</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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