Now showing items 21-40 of 73

  • Cold-setting Inkjet Printed Titania Patterns Reinforced by Organosilicate Binder 

    Králová, Marcela; Dzik, Petr; Kašpárek, Vít; Veselý, Michal; Cihlář, Jaroslav (MDPI, 2015-09-11)
    Preparation of photocatalytic active layers by cold-setting inkjet printing. Comparison of printed, UV-cured and sintered layers; their physical properties, as well as, photocatalytic and electrophotocatalytic properties.
  • An Electrochemical NO2 Sensor Based on Ionic Liquid: Influence of the Morphology of the Polymer Electrolyte on Sensor Sensitivity 

    Kuberský, Petr; Altšmíd, Jakub; Hamáček, Aleš; Nešpůrek, Stanislav; Zmeškal, Oldřich (MDPI, 2015-11-11)
    A systematic study was carried out to investigate the effect of ionic liquid in solid polymer electrolyte (SPE) and its layer morphology on the characteristics of an electrochemical amperometric nitrogen dioxide sensor. ...
  • Plasmachemical Conservation of Corroded Metallic Objects 

    Sázavská, Věra; Veverková, Radka; Krčma, František; Řádková, Lucie; Miková, Petra; Přikryl, Radek; Procházka, Michal (IOP Publishing, 2016-05-17)
    Plasmachemical process for conservation of metallic objects is a new way of effective and fast treatment of corroded objects. This process consists of two main steps: corrosion removal and deposition of a protecting film. ...
  • Effect of Hydrogen Plasma on Model Corrosion Layers of Bronze 

    Miková, Petra; Sázavská, Věra; Mika, Filip; Krčma, František (IOP Publishing, 2016-05-17)
    Our work is about plasmachemical reduction of model corrosion layers. The model corrosion layers were produced on bronze samples with size of 10 x 10 x 5 mm3, containing Cu and Sn. Concentrated hydrochloric acid was used ...
  • Discharge Ignition in the Diaphragm Configuration Supplied by DC Non-Pulsing Voltage 

    Holíková, Lenka; Dřímalková, Lucie; Kozáková, Zdenka; Krčma, František (IOP Publishing, 2016-05-17)
    This work deals with the ignition of the discharge in the diaphragm configuration generated in water solutions containing supporting NaCl electrolyte. The reactor has volume of 110 ml and it is made of polycarbonate. HV ...
  • Remote operation of the GOLEM tokamak with hydrogen and helium plasmas 

    Svoboda, Vojtěch; Dvornova, Anastasiia; Dejarnac, Renaud; Procházka, Michal; Zapryanov, Stanislav; Akhmetzhanov, Ruslan; Bogdanova, Maria; Dimitrova, Miglena; Dimitrov, Zhivko; Dřímalková, Lucie; Ivanov, Krasimir; Kruglov, Kirill; Marinova, Plamena; Masherov, Pavel; Mogulkin, Andrey; Mlynář, Jan; Stockel, Jan; Volynets, Andrey (IOP Science, 2016-11-04)
    The GOLEM tokamak was operated remotely via internet connection during the 6th International Workshop and Summer School on Plasma Physics. Performances of hydrogen and helium discharges are compared in this paper. It is ...
  • Barrier SiO2-like coatings for archaeological artefacts preservation 

    Procházka, Michal; Blahová, Lucie; Krčma, František (IOP Publishing, 2016-11-04)
    Thin film chemical vapour deposition technique has been used for more than 50 years. Introducing organosilicones as precursors, e.g. hexamethyldisiloxane (HMDSO) or tetraethylorthosilicate (TEOS), brought new possibilities ...
  • Influence of diaphragm configuration on DC diaphragm discharge breakdown in electrolyte solution 

    Dřímalková, Lucie; Holíková, Lenka; Kozáková, Zdenka; Krčma, František; Guaitella, Olivier (IOP Publishing, 2016-11-04)
    This paper deals with generation of diaphragm discharge in water solutions of sodium chloride with fixed conductivity of 275 mu S. The photos were recorded by high-speed iCCD camera at defined times synchronized by the ...
  • Surface-wave-sustained plasma torch for water treatment 

    Krčma, František (IOP Publishing, 2018-03-14)
    In this study the effects of water treatment by surface-wave-sustained plasma torch at 2.45 GHz are studied. The changes of the plasma characteristics during the interaction with the water and water physical and chemical ...
  • Microwave Plasma Torch Generated in Argon for Small Berries Surface Treatment 

    Bogdanov, Todor; Tsonev, Ivan; Marinova, Plamena; Benova, Evgenia; Rusanov, Krasimir; Rusanova, Mila; Atanassov, Ivan; Kozáková, Zdenka; Krčma, František (MDPI, 2018-10-10)
    Demand for food quality and extended freshness without the use of harmful chemicals has become a major topic over the last decade. New technologies are using UV light, strong electric field, ozone and other reactive agents ...
  • How Humic Acids Affect the Rheological and Transport Properties of Hydrogels 

    Klučáková, Martina; Smilek, Jiří; Sedláček, Petr (MDPI, 2019-04-19)
    Huminové kyseliny jsou považovány za látky s tzv. supramolekulární strukturou, jež je základem jejich unikátních vlastností a fungování v přírodě. Naše studie potvrdila, že již malý přídavek těchto látek do agarozových ...
  • Compositional and Temperature Effects on the Rheological Properties of Polyelectrolyte–Surfactant Hydrogels 

    Smilek, Jiří; Jarábková, Sabína; Velcer, Tomáš; Pekař, Miloslav (MDPI, 2019-05-27)
    The rheological properties of hydrogels prepared by physical interactions between oppositely charged polyelectrolyte and surfactant in micellar form were studied. Specifically, hyaluronan was employed as a negatively charged ...
  • Drug Release Kinetics of Electrospun PHB Meshes 

    Kundrát, Vojtěch; Černeková, Nicole; Kovalčík, Adriána; Enev, Vojtěch; Márová, Ivana (MDPI, 2019-06-14)
    Microbial poly(3-hydroxybutyrate) (PHB) has several advantages including its biocompatibility and ability to degrade in vivo and in vitro without toxic substances. This paper investigates the feasibility of electrospun PHB ...
  • A simple technique for assessing the cuticular diffusion of humic acid biostimulants 

    Smilková, Marcela; Smilek, Jiří; Kalina, Michal; Klučáková, Martina; Pekař, Miloslav; Sedláček, Petr (BMC, 2019-07-31)
    Background: Experimental determination of the extent and rate of transport of liquid humates supplied to plants is critical in testing of physiological effects of such biostimulants which are often supplied as foliar sprays. ...
  • Atmospheric Pressure Plasma Polymerized Oxazoline-Based Thin Films-Antibacterial Properties and Cytocompatibility Performance 

    Sťahel, Pavel; Mazánková, Věra; Tomečková, Klára; Matoušková, Petra; Brablec, Antonín; Prokeš, Lubomír; Jurmanová, Jana; Buršíková, Vilma; Přibyl, Roman; Lehocký, Marián; Humpolíček, Petr; Ozaltin, Kadir; Trunec, David (MDPI, 2019-12-12)
    Polyoxazolines are a new promising class of polymers for biomedical applications. Antibiofouling polyoxazoline coatings can suppress bacterial colonization of medical devices, which can cause infections to patients. However, ...
  • Atmospheric Pressure Microwave Plasma Jet for Organic Thin Film Deposition 

    Narimisa, Mehrnoush; Krčma, František; Onyshchenko, Yuliia; Kozáková, Zdenka; Morent, Rino; De Geyter, Nathalie (MDPI, 2020-02-06)
    In this work, the potential of a microwave (MW)induced atmospheric pressure plasma jet (APPJ) in film deposition of styrene and methyl methacrylate (MMA) precursors is investigated. Plasma properties during the deposition ...
  • Agarose Hydrogels Enriched by Humic Acids as the Complexation Agent 

    Klučáková, Martina (MDPI, 2020-03-19)
    The transport properties of agarose hydrogels enriched by humic acids were studied. Methylene blue, rhodamine 6G and Cu(II) ions were incorporated into hydrogel as diffusion probes, and then their release into water was ...
  • Investigation Of Electric And Thermal Properties Of Alkali-Activated Aluminosilicates With A CNT Admixture 

    Zmeškal, Oldřich; Trhlíková, Lucie; Pospíšil, Jan; Fiala, Lukáš; Florián, Pavel (University of Chemistry and Technology, Prague, 2020-04-20)
    The paper is focused on measurements of electric and thermal properties of alkali-activated aluminosilicates (AAAs) with a carbon nanotube (CNT) admixture. Such composites, fabricated from blast-furnace slag, quartz sand, ...
  • Gradient Hydrogels—The State of the Art in Preparation Methods 

    Zinkovska, Natalia; Smilek, Jiří; Pekař, Miloslav (MDPI, 2020-04-21)
    Gradient hydrogels refer to hydrogel materials with a gradual or abrupt change in one or some of their properties. They represent examples of more sophisticated gel materials in comparison to simple, native gel networks. ...
  • Introducing the Newly Isolated BacteriumAneurinibacillussp. H1 as an Auspicious Thermophilic Producer of Various Polyhydroxyalkanoates (PHA) Copolymers-1. Isolation and Characterization of the Bacterium 

    Pernicová, Iva; Nováčková, Ivana; Sedláček, Petr; Kouřilová, Xenie; Kalina, Michal; Kovalčík, Adriána; Koller, Martin; Nebesářová, Jana; Krzyžánek, Vladislav; Hrubanová, Kamila; Másilko, Jiří; Slaninová, Eva; Obruča, Stanislav (MDPI, 2020-05-29)
    Extremophilic microorganisms are considered being very promising candidates for biotechnological production of various products including polyhydroxyalkanoates (PHA). The aim of this work was to evaluate the PHA production ...