Characterization of electrochemically visualized latent fingerprints

Kód výsledku v 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>

Nalezeny alternativní kódy

RIV/60461373:22810/25:43932261

Výsledek na webu

<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>

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 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.

Název v anglickém jazyce

Characterization of electrochemically visualized latent fingerprints

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

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

2025

Kód důvěrnosti údajů

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

Název periodika

MONATSHEFTE FUR CHEMIE

ISSN

0026-9247

e-ISSN

1434-4475

Svazek periodika

156

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

AT - Rakouská republika

Počet stran výsledku

7

Strana od-do

1073-1079

Kód UT WoS článku

001543329000001

EID výsledku v databázi Scopus

2-s2.0-105012635851