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197 results on '"Modic, Martina"'

14. Polarization induced water molecule dissociation below the first-order electronic-phase transition temperature

Author

Arulsamy, Andrew Das, Kregar, Zlatko, Elersic, Kristina, Modic, Martina, and Subramani, Uma Shankar

Subjects
Physics - Chemical Physics, Condensed Matter - Strongly Correlated Electrons
Abstract

Hydrogen produced from the photocatalytic splitting of water is one of the reliable alternatives to replace the polluting fossil and the radioactive nuclear fuels. Here, we provide unequivocal evidence for the existence of blue- and red-shifting O$-$H covalent bonds within a single water molecule adsorbed on MgO surface as a result of asymmetric displacement polarizabilities. The adsorbed H-O-H on MgO gives rise to one weaker H-O bond, while the other O-H covalent bond from the same adsorbed water molecule compensates this effect with a stronger bond. The weaker bond (nearest to the surface), the interlayer tunneling electrons and the silver substrate are shown to be the causes for the smallest dissociative activation energy on MgO monolayer. The origin that is responsible to initiate the splitting mechanism is proven to be due to the changes in the polarizability of an adsorbed water molecule, which are further supported by the temperature-dependent static dielectric constant measurements for water below the first-order electronic-phase transition temperature., Comment: To be published in PhysChemChemPhys

Published
2011
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15. Reversible carrier-type transition in gas-sensing oxides and nanostructures

Author

Arulsamy, Andrew Das, Elersic, Kristina, Modic, Martina, Cvelbar, Uros, and Mozetic, Miran

Subjects
Condensed Matter - Strongly Correlated Electrons
Abstract

Despite many important applications of a-Fe2O3 and Fe doped SnO2 in semiconductors, catalysis, sensors, clinical diagnosis and treatments, one fundamental issue that is crucial to these applications remains theoretically equivocal- the reversible carrier-type transition between n- and p-type conductivities during gas-sensing operations. Here, we give unambiguous and rigorous theoretical analysis in order to explain why and how the oxygen vacancies affect the n-type semiconductors, a-Fe2O3 and Fe doped SnO2 in which they are both electronically and chemically transformed into a p-type semiconductor. Furthermore, this reversible transition also occurs on the oxide surfaces during gas-sensing operation due to physisorbed gas molecules (without any chemical reaction). We make use of the ionization energy theory and its renormalized ionic displacement polarizability functional to reclassify, generalize and to explain the concept of carrier-type transition in solids, and during gas-sensing operation. The origin of such a transition is associated to the change in ionic polarizability and the valence states of cations in the presence of (a) oxygen vacancies and (b) physisorped gas molecules., Comment: To be published in ChemPhysChem

Published
2010
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16. Corrigendum to “Degradation and toxicity of bisphenol A and S during cold atmospheric pressure plasma treatment” J. Hazard. Mater. 454(2023) Article no. 131478

Author

Kovačič, Ana, primary, Modic, Martina, additional, Hojnik, Nataša, additional, Štampar, Martina, additional, Gulin, Martin Rafael, additional, Nannou, Christina, additional, Koronaiou, Lelouda-Athanasia, additional, Heath, David, additional, Walsh, James L., additional, Žegura, Bojana, additional, Lambropoulou, Dimitra, additional, Cvelbar, Uroš, additional, and Heath, Ester, additional

Published
2023
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17. Plasma-Made Nanogold for DNA Sensing with SERS

Author

Shvalya, Vasyl, primary, Modic, Martina, additional, Zavašnik, Janez, additional, Vasudevan, Aswathy, additional, Skubic, Cene, additional, Abdulhalim, Ibrahim, additional, Rozman, Damjana, additional, and Cvelbar, Uros, additional

Published
2023
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22. Bacterial DNA Recognition by SERS Active Plasma-Coupled Nanogold

Author

Shvalya, Vasyl, primary, Vasudevan, Aswathy, additional, Modic, Martina, additional, Abutoama, Mohammad, additional, Skubic, Cene, additional, Nadižar, Nejc, additional, Zavašnik, Janez, additional, Vengust, Damjan, additional, Zidanšek, Aleksander, additional, Abdulhalim, Ibrahim, additional, Rozman, Damjana, additional, and Cvelbar, Uroš, additional

Published
2022
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31. Controlled antibacterial activity of polyester fabric by immobilization of silver nanoparticles in thin films

Author

Ribeiro, Ana Isabel Ferreira, Modic, Martina, Cvelbar, Uros, Dinescu, Ghorghe, Mitu, Bogdana, Nikiforov, Anton, Leys, C, Kuchakova, Irina, Vrieze, Mike, Felgueiras, Helena Prado, Souto, António Pedro Sousa Glória Valadares, Zille, Andrea, and Universidade do Minho

Subjects
Engenharia e Tecnologia::Engenharia dos Materiais
Abstract

FCT Research contract (IF/00071/2015), the project PTDC/CTM-TEX/28295/2017 financed by FCT, FEDER and POCI of Portugal 2020, the project UID/CTM/00264/2019 of 2C2T under the COMPETE and FCT/MCTES (PIDDAC) co-financed by FEDER through the PT2020 program. Ana Isabel Ribeiro acknowledges FCT the PhD scholarship SFRH/BD/137668/2018

Published
2021

32. Plasmonic Carbonaceous Nanotemplates for Microplastics Raman Detection

Author

Shvalya, Vasyl, primary, Santhosh, Neelakandan M, additional, Kosicek, Martin, additional, Vengust, Damjan, additional, Olenik, Jaka, additional, Podlogar, Mateja, additional, Zavašnik, Janez, additional, Filipič, Gregor, additional, Modic, Martina, additional, Hojnik, Nataša, additional, and Cvelbar, Uros, additional

Published
2021
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34. Cover Picture: Plasma Process. Polym. 1/2021

Author

Hojnik, Nataša, primary, Modic, Martina, additional, Žigon, Dušan, additional, Kovač, Janez, additional, Jurov, Andrea, additional, Dickenson, Aaron, additional, Walsh, James L., additional, and Cvelbar, Uroš, additional

Published
2021
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37. White paper on the future of plasma science and technology in plastics and textiles

Author

Cvelbar, Uroš, Walsh, James, Černák, Mirko, de Vries, Hindrik, Reuter, Stephan, Belmonte, Thierry, Corbella, Carles, Miron, Camelia, Hojnik, Nataša, Jurov, Andrea, Puliyalil, Harinarayanan, Gorjanc, Marija, Portal, Sabine, Laurita, Romolo, Colombo, Vittorio, Schäfer, Jan, Nikiforov, Anton, Myodic, Martina, Kylian, Ondrej, Polak, Martin, Labay, Cedric, Canal, Jose, Canal, Cristina, Gherardi, Matteo, Bazaka, Kateryna, Sonar, Prashant, Ostrikov, Kostya, Cameron, David, Thomas, Sabu, Modic, Martina, Weltmann, Klaus-Dieter, INP Greifswald, Institut Jean Lamour (IJL), Université de Lorraine (UL)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), FEMAN (FEMAN), Universitat de Barcelona (UB), Biomaterials, Biomechanics and Tissue Engineering Group, Universitat Politècnica de Catalunya [Barcelona] (UPC), School of Communication, Charles Sturt University [Australia], School of Chemical Sciences, Mahatma Gandhi University, Kottayam, Mahatma Gandhi University, Leibniz Institute for Plasma Science and Technology (INP), Leibniz Association, Cvelbar, Uroš, Walsh, James L., Černák, Mirko, de Vries, Hindrik W., Reuter, Stephan, Belmonte, Thierry, Corbella, Carle, Miron, Camelia, Hojnik, Nataša, Jurov, Andrea, Puliyalil, Harinarayanan, Gorjanc, Marija, Portal, Sabine, Laurita, Romolo, Colombo, Vittorio, Schäfer, Jan, Nikiforov, Anton, Modic, Martina, Kylian, Ondrej, Polak, Martin, Labay, Cedric, Canal, Jose M., Canal, Cristina, Gherardi, Matteo, Bazaka, Kateryna, Sonar, Prashant, Ostrikov, Kostya K., Cameron, David, Thomas, Sabu, Weltmann, Klaus-Dieter, Universitat Politècnica de Catalunya. Departament de Ciència dels Materials i Enginyeria Metal·lúrgica, Universitat Politècnica de Catalunya. TECTEX - Grup de Recerca en Tecnologia Tèxtil, Universitat Politècnica de Catalunya. BBT - Biomaterials, Biomecànica i Enginyeria de Teixits, and Inštitut 'Jožef Stefan'

Subjects
Engineering, Textile, Polymers and Plastics, Textile production, Plasma (Gasos ionitzats), Enginyeria dels materials [Àrees temàtiques de la UPC], 01 natural sciences, plasma, plastics, textile, trends, white paper, [SPI.MAT]Engineering Sciences [physics]/Materials, Plasma, White paper, 0103 physical sciences, Plasma processing, Grand Challenges, 010302 applied physics, Plasma (Ionized gases), business.industry, Plàstics, [SPI.PLASMA]Engineering Sciences [physics]/Plasmas, Condensed Matter Physics, Environmentally friendly, Manufacturing engineering, Trends, Teixits i tèxtils, business, Plastics, Textile fabrics
Abstract

This is the peer reviewed version of the following article: “Uros, C., Walsh, J., Cernák, M., Labay, C., Canal, J.M., Canal, C. (2019) White paper on the future of plasma science and technology in plastics and textiles. Plasma processes and polymers, 16 1 which has been published in final form at [doi: 10.1002/ppap.201700228]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving." This white paper considers the future of plasma science and technology related to the manufacturing and modifications of plastics and textiles, summarizing existing efforts and the current state‐of‐art for major topics related to plasma processing techniques. It draws on the frontier of plasma technologies in order to see beyond and identify the grand challenges which we face in the following 5–10 years. To progress and move the frontier forward, the paper highlights the major enabling technologies and topics related to the design of surfaces, coatings and materials with non‐equilibrium plasmas. The aim is to progress the field of plastics and textile production using advanced plasma processing as the key enabling technology which is environmentally friendly, cost efficient, and offers high‐speed processing

Published
2019
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39. Effect of Dispersion Solvent on the Deposition of PVP-Silver Nanoparticles onto DBD Plasma-Treated Polyamide 6,6 Fabric and Its Antimicrobial Efficiency

Author

Ribeiro, Ana I., primary, Modic, Martina, additional, Cvelbar, Uros, additional, Dinescu, Gheorghe, additional, Mitu, Bogdana, additional, Nikiforov, Anton, additional, Leys, Christophe, additional, Kuchakova, Iryna, additional, De Vrieze, Mike, additional, Felgueiras, Helena P., additional, Souto, António P., additional, and Zille, Andrea, additional

Published
2020
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42. Radio-frequency plasma in combination with aerosol injection for biomedical applications

Author

Sremački, Ivana, Wang, Lei, Jurov, Andrea, Modic, Martina, Cvelbar, Uroš, Leys, Christophe, and Nikiforov, Anton

Subjects
Chemistry, Technology and Engineering, Physics and Astronomy, Physics::Plasma Physics, aerosol, emission, radiofrequency plasma, gas temperature
Abstract

Radiofrequency plasma for biomedical applications generated in coaxial geometry at atmospheric pressure was investigated. The plasma was characterized by key parameters, including gas temperature and electron density. It was shown that OH rotational temperature is in agreement with the temperature estimated by Rayleigh and Raman scattering techniques. RF plasma was combined with an aerosol injection for better control of the treated skin temperature and topical drugs delivery.

Published
2019

43. Antimicrobial Efficacy of Low Concentration PVP-Silver Nanoparticles Deposited on DBD Plasma-Treated Polyamide 6,6 Fabric

Author

Ribeiro, Ana Isabel, primary, Senturk, Dilara, additional, Silva, Késia Karina, additional, Modic, Martina, additional, Cvelbar, Uros, additional, Dinescu, Gheorghe, additional, Mitu, Bogdana, additional, Nikiforov, Anton, additional, Leys, Christophe, additional, Kuchakova, Irina, additional, De Vrieze, Mike, additional, Souto, António Pedro, additional, and Zille, Andrea, additional

Published
2019
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48. Cold atmospheric pressure plasma‐assisted removal of aflatoxin B1 from contaminated corn kernels.

Author

Hojnik, Nataša, Modic, Martina, Žigon, Dušan, Kovač, Janez, Jurov, Andrea, Dickenson, Aaron, Walsh, James L., and Cvelbar, Uroš

Subjects
*ATMOSPHERIC pressure, *AFLATOXINS, *METABOLITES, *FOOD crops, *SURFACE analysis, *CORN stover
Abstract

Mycotoxins, the toxic secondary metabolites produced by filamentous fungi, are found in up to 80% of global food and feed crops. Here, we report on the complete removal of aflatoxin B1 (AFB1) from the artificially contaminated corn kernels with an indirect cold atmospheric pressure plasma (CAP) treatment generated with a surface barrier discharge system working in ambient air. Surface analysis of the corn kernels revealed the presence of minor changes in the treated samples, indicating that indirect CAP treatments induced slight oxidation of the corn kernel surface. This study not only proposes CAP as an effective food processing method for the decontamination of mycotoxins but also presents the first step towards acceptance of CAP technology as a safe food processing method. [ABSTRACT FROM AUTHOR]

Published
2021
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49. White paper on the future of plasma science and technology in plastics and textiles

Author

Cvelbar, Uroš, primary, Walsh, James L., additional, Černák, Mirko, additional, de Vries, Hindrik W., additional, Reuter, Stephan, additional, Belmonte, Thierry, additional, Corbella, Carles, additional, Miron, Camelia, additional, Hojnik, Nataša, additional, Jurov, Andrea, additional, Puliyalil, Harinarayanan, additional, Gorjanc, Marija, additional, Portal, Sabine, additional, Laurita, Romolo, additional, Colombo, Vittorio, additional, Schäfer, Jan, additional, Nikiforov, Anton, additional, Modic, Martina, additional, Kylian, Ondrej, additional, Polak, Martin, additional, Labay, Cedric, additional, Canal, Jose M., additional, Canal, Cristina, additional, Gherardi, Matteo, additional, Bazaka, Kateryna, additional, Sonar, Prashant, additional, Ostrikov, Kostya K., additional, Cameron, David, additional, Thomas, Sabu, additional, and Weltmann, Klaus‐Dieter, additional

Published
2018
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