PĎ

Pavol Ďurina

Comenius University Bratislava

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ТР

Т. Роч

Comenius University Bratislava

A. Plecenı́k

Comenius University Bratislava

P. Kúš

Comenius University Bratislava

T. Pleceník

Comenius University Bratislava

Martin Truchlý

Comenius University Bratislava

M. Gregor

Comenius University Bratislava

Branislav Grančič

Comenius University Bratislava

Marián Mikula

Comenius University Bratislava

Leonid Satrapinskyy

Comenius University Bratislava

Azhar Ali Haidry

Nanjing University of Aeronautics and Astronautics

Cooperative Institutions

Comenius University Bratislava

Slovak Academy of Sciences

Slovak University of Technology in Bratislava

University Hospital Bratislava

Masaryk University

Institute of Electrical Engineering of the Slovak Academy of Sciences

Institute of Physics of the Slovak Academy of Sciences

Institute of Chemistry of the Slovak Academy of Sciences

University of Rochester

Institute of Informatics of the Slovak Academy of Sciences

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Atmospheric pressure plasma etching of silicon dioxide using diffuse coplanar surface barrier discharge generated in pure hydrogen

Surface and Coatings Technology (2016)

Richard Krumpolec Ján Čech Jana Jurmanová Pavol Ďurina Mirko Černák

Dry etching

Plasma Etching

Plasma cleaning

Silicon dioxide

10.1016/j.surfcoat.2016.11.036

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Citations (17)

Depth profiling of W Ta based fusion-relevant samples using picosecond laser ablation

Spectrochimica Acta Part B Atomic Spectroscopy (2024)

Shweta Soni Sahithya Atikukke Matej Veis Nima Bolouki Pavol Ďurina

This study presents a detailed picosecond LIBS analysis of WTa coatings on Molybdenum substrate with varying layer thicknesses using ps-LIBS for fusion relevant applications. Ps-LIBS is performed on three WTa layers; two with deuterium (∼7μm thickness) and one without deuterium (∼1μm thickness). The LIBS measurements are conducted under argon gas flow at 5±0.2 mbar pressure with different laser pulse energies (1 mJ, 3 mJ) and 100 spectra are recorded consecutively at one spot on the sample for different set of gate delay/gate width (200/200 ns, 300/300 ns, 450/450 ns). The obtained LIBS and Glow-Discharge Optical Emission Spectroscopy (GDOES) depth profiles are compared with the confocal microscopic measurements showing good agreement. Additionally, the ablation rate and layer thickness are calculated for different experimental conditions. The Calibration-Free LIBS approach is used for elemental analysis and the results are compared with GDOES results. The capability of ps-LIBS to quantify Ta in WTa alloy is explored for 2 at.% of Ta. However, due to higher ablation rate of laser and thin coating in WTaD sample, the layer is irradiated in few laser pulse and therefore, CF-LIBS analysis is not performed for it.

Picosecond

Laser Ablation

Laser-induced breakdown spectroscopy

10.1016/j.sab.2024.106930

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Structural properties of Pt/TiO2/Pt heterostructure grown on sapphire substrate—Influence of annealing processes

Applied Surface Science (2014)

Т. Роч Pavol Ďurina Branislav Grančič M. Gregor T. Pleceník

Rutile

10.1016/j.apsusc.2014.04.136

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Citations (9)

Non-thermal plasma induces changes in aflatoxin production, devitalization, and surface chemistry of Aspergillus parasiticus

Applied Microbiology and Biotechnology (2022)

Lucia Hoppanová Juliana Dylíková Dušan Kováčik Veronika Medvecká Pavol Ďurina

Ergosterol

Nonthermal plasma

10.1007/s00253-022-11828-y

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Citations (6)

Properties of Metal Oxide Gas Sensors with Electrodes Placed below the Sensing Layer

Key engineering materials (2014)

Pavol Ďurina T. Pleceník Martin Moško Azhar Ali Haidry Martin Truchlý

In this work, we investigate the influence of position of electrodes on the sensitivity of hydrogen gas sensors based on TiO 2 thin films. We have prepared two types of sensors with platinum comb-like electrodes deposited on top and under the TiO 2 layer. Response of these sensors to hydrogen gas in the concentration range of 0 10 000 ppm at temperature of 350 °C has been studied. The sensors with electrodes placed under the TiO 2 layer showed two orders of magnitude lower sensitivity for 10 000 ppm compared to sensors with electrodes on top of the layer, but it was considerably increased when thickness of the TiO 2 layer was lowered. This gives a possibility to improve the sensitivity of gas sensors in which the electrodes must be placed below the sensing layer for their protection from harsh environment.

10.4028/www.scientific.net/kem.605.527

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Citations (2)

Cold atmospheric pressure ambient air plasma inhibition of pathogenic bacteria on the surface of black pepper

Food Research International (2018)

Silvia Mošovská Veronika Medvecká Noémi Halászová Pavol Ďurina Ľubomír Valík

Salmonella enteritidis

10.1016/j.foodres.2018.01.066

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Citations (66)

Phelan-McDermid syndrome in adult patient with atypical bipolar psychosis repeatedly triggered by febrility

Neurocase (2018)

Petra Jungová Andrea Čumová Veronika Kramarová Jana Lisyová Pavol Ďurina

Phelan-McDermid syndrome (PMD) is a rare genetic condition with only a few cases describing patients diagnosed as adults. We describe a long diagnostic odyssey of a 30-year-old woman who was diagnosed with Phelan-McDermid syndrom. Array comparative genomic hybridization analysis confirmed a 22q13.33 deletion, encompassing exon 9–23 of the SHANK3 gene and exon 1 of the ACR gene. We provide an uncommon feature of the disease, where psychotic alteration is repeatedly triggered by the same physical factor in our patient – mild fever episodes.

10.1080/13554794.2018.1542007

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Citations (10)

Highly sensitive hydrogen gas sensor based on a capacitor-like Pt/TiO2/Pt structure with large-scale nanoporous top electrode

International Journal of Hydrogen Energy (2024)

Michal Patrnčiak Marek Vidiš Ľubomír Staňo I. Shpetnyy Т. Роч

Nanoporous

10.1016/j.ijhydene.2024.12.142

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Citations (0)

Effect of reflected Ar neutrals on tantalum diboride coatings prepared by direct current magnetron sputtering

Surface and Coatings Technology (2021)

Katarína Viskupová Branislav Grančič Т. Роч Leonid Satrapinskyy Martin Truchlý

Cavity magnetron

Ductility (Earth science)

10.1016/j.surfcoat.2021.127463

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Citations (8)

Hydrogen gas sensors based on nanocrystalline TiO2 thin films

Open Physics (2011)

Azhar Ali Haidry Peter J. Schlosser Pavol Ďurina Marián Mikula Milan Tomášek

Abstract Titanium dioxide thin films are extensively studied for applications in solid state gas sensor devices. Their gas sensing properties are strongly dependent on deposition technique, annealing temperature, film thickness and consequent properties like crystalline structure, grain size or amount of defects and impurities. In this work we report the gas sensing properties of TiO2 thin films prepared by reactive magnetron sputtering technique and subsequently annealed at temperatures 600°C and 900°C. The films were exposed to different concentrations of H2 gas up to 10 000 ppm. Their sensitivity to gas at various operating temperatures, ranging from 250°C to 450°C, was obtained by measuring their resistance.

Nanocrystalline material

Titanium Dioxide

Forming gas

10.2478/s11534-011-0042-3

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Citations (59)