Characterization of electrochemically visualized latent fingerprints

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00007064%3AK01__%2F24%3AN0000065" target="_blank" >RIV/00007064:K01__/24:N0000065 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22340/24:43929870 RIV/60461373:22810/24:43929870

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

20th International Students Conference "Modern Analytical Chemistry", Prague: 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. Cyclic voltammetry and chronoamperometry have been used to deposit thin polymer films that visualize fingerprints. After visualization the individual layers substrate/fingerprint/polymer film and their interfaces were characterized profilometrically, spectroscopically (FTIR) and via SEM. With the help of SEM images, it was possible to assess the quality and morphology of the applied polymer layer. Profilometry showed the homogeneity and surface roughness of the deposited layers. Based on the FTIR spectra, it can be concluded that polymer films of dyes are deposited on the surface of the substrates due to the observed changes and band intensities belonging to the mono- and polymer form of neutral red and toluidine blue, respectively. 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

20th International Students Conference "Modern Analytical Chemistry", Prague: 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. Cyclic voltammetry and chronoamperometry have been used to deposit thin polymer films that visualize fingerprints. After visualization the individual layers substrate/fingerprint/polymer film and their interfaces were characterized profilometrically, spectroscopically (FTIR) and via SEM. With the help of SEM images, it was possible to assess the quality and morphology of the applied polymer layer. Profilometry showed the homogeneity and surface roughness of the deposited layers. Based on the FTIR spectra, it can be concluded that polymer films of dyes are deposited on the surface of the substrates due to the observed changes and band intensities belonging to the mono- and polymer form of neutral red and toluidine blue, respectively. The electrochemical visualization method proved to be usable, gentle and relatively fast.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

10400 - Chemical sciences

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

Název statě ve sborníku

Proceedings of the 20th International Students Conference “Modern Analytical Chemistry”

ISBN

978-80-7444-106-6

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

16-21

Název nakladatele

Univerzita Karlova v Praze

Místo vydání

Praha

Místo konání akce

Praha

Datum konání akce

19. 9. 2024

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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