Characterization of electrochemically visualized latent fingerprints

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F24%3A43929869" target="_blank" >RIV/60461373:22340/24:43929869 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22810/24:43929869 RIV/00007064:K01__/24:N0000070 RIV/00007064:K01__/24:N0000071

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Characterization of electrochemically visualized latent fingerprints

Popis výsledku v původním jazyce

This work presents an electrochemical approach to the visualizationof fingerprints on brass cartridges with the aim of characterizing howvisualization using polyphenazine dyes affects latent fingerprints.Cyclic voltammetry and chronoamperometry have been used to depo-sit thin polymer films that visualize fingerprints. After visualizationthe individual layers (substrate/fingerprint/polymer film) and theirinterfaces were characterized profilometrically, spectroscopically(FTIR) and via SEM. With the help of SEM images, it was possible toassess the quality and morphology of the applied polymer layer.Profilometry showed the homogeneity and surface roughness of thedeposited layers. Based on the FTIR spectra, it can be concluded thatpolymer films of dyes are deposited on the surface of the substratesdue to the observed changes and band intensities belonging to themono- and polymer form of neutral red and toluidine blue, respec-tively. The electrochemical visualization method proved to be usable,gentle and relatively fast.

Název v anglickém jazyce

Characterization of electrochemically visualized latent fingerprints

Popis výsledku anglicky

This work presents an electrochemical approach to the visualizationof fingerprints on brass cartridges with the aim of characterizing howvisualization using polyphenazine dyes affects latent fingerprints.Cyclic voltammetry and chronoamperometry have been used to depo-sit thin polymer films that visualize fingerprints. After visualizationthe individual layers (substrate/fingerprint/polymer film) and theirinterfaces were characterized profilometrically, spectroscopically(FTIR) and via SEM. With the help of SEM images, it was possible toassess the quality and morphology of the applied polymer layer.Profilometry showed the homogeneity and surface roughness of thedeposited layers. Based on the FTIR spectra, it can be concluded thatpolymer films of dyes are deposited on the surface of the substratesdue to the observed changes and band intensities belonging to themono- and polymer form of neutral red and toluidine blue, respec-tively. The electrochemical visualization method proved to be usable,gentle and relatively fast.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Projekt

<a href="/cs/project/VK01010022" target="_blank" >VK01010022: Pokročilé metody vizualizace daktyloskopických stop</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů