Recent Submissions

  • Polarity-Based Sequential Extraction as a Simple Tool to Reveal the Structural Complexity of Humic Acids 

    Enev, Vojtěch; Sedláček, Petr; Kubíková, Leona; Sovová, Šárka; Doskočil, Leoš; Klučáková, Martina; Pekař, Miloslav (MDPI, 2021-03-19)
    A sequential chemical extraction with a defined series of eluotropic organic solvents with an increasing polarity (trichloromethane < ethyl acetate < acetone < acetonitrile < n-propanol < methanol) was performed on peat-bog ...
  • Non-Equilibrium Thermodynamics View on Kinetics of Autocatalytic Reactions—Two Illustrative Examples 

    Pekař, Miloslav (MDPI, 2021-01-22)
    Autocatalytic reactions are in certain contrast with the linear algebra of reaction stoichiometry, on which rate equations respecting the permanence of atoms are constructed. These mathematical models of chemical reactions ...
  • Low-Temperature Mineralisation of Titania-Siloxane Composite Layers 

    Svoboda, Tomáš; Veselý, Michal; Bartoš, Radim; Homola, Tomáš; Dzik, Petr (MDPI, 2021-01-01)
    This paper deals with low-temperature mineralisation of coatings made with titania-siloxane compositions (TSC). Methyltriethoxysilane has been adopted as the precursor for the siloxane, and during its synthesis, an oligomeric ...
  • Influence of Solution Properties and Gas Addition on Hydrogen Peroxide Production by a Pin-hole Based Plasma Source 

    Kozáková, Zdenka; Krčma, František; Možíšová, Aneta; Dürrová, Anastasia (Czech Technical University in Prague, 2021-02-25)
    The paper evaluates concentration of hydrogen peroxide produced by a novel pin-hole plasma source in electrolyte solutions with or without gas addition. An effective production rate of hydrogen peroxide is decreased by the ...
  • Effect of Plasma Activated Water Foliar Application on Selected Growth Parameters of Maize (Zea mays L.) 

    Škarpa, Petr; Klofáč, Daniel; Krčma, František; Šimečková, Jana; Kozáková, Zdenka (MDPI, 2020-12-17)
    Utilization of plasma activated water (PAW) for plant growing is mainly connected with the treatment of seeds and subsequent stimulation of their germination. A potential of PAW isits relatively simple and low-cost preparation ...
  • How the Supramolecular Nature of Lignohumate Affects Its Diffusion in Agarose Hydrogel 

    Klučáková, Martina; Kalina, Michal; Enev, Vojtěch (MDPI, 2020-12-10)
    Lignohumate, as an industrially produced analog of natural humic substances, is studied from the point of view of its diffusion properties. This work focuses on its permeation ability, important in agricultural and ...
  • Atmospheric Pressure Plasma Polymerized 2-Ethyl-2-oxazoline Based Thin Films for Biomedical Purposes 

    Mazánková, Věra; Sťahel, Pavel; Matoušková, Petra; Brablec, Antonín; Čech, Jan; Prokeš, Lubomír; Buršíková, Vilma; Stupavská, Monika; Lehocký, Marián; Ozaltin, Kadir; Humpolíček, Petr; Trunec, David (MDPI, 2020-11-13)
    Polyoxazoline thin coatings were deposited on glass substrates using atmospheric pressure plasma polymerization from 2-ethyl-2-oxazoline vapours. The plasma polymerization was performed in dielectric barrier discharge ...
  • Multiscale experimental evaluation of agarose-based semi-interpenetrating polymer network hydrogels as materials with tunable rheological and transport performance 

    Trudičová, Monika; Smilek, Jiří; Kalina, Michal; Smilková, Marcela; Adámková, Kateřina; Hrubanová, Kamila; Krzyžánek, Vladislav; Sedláček, Petr (MDPI, 2020-10-31)
    This study introduces an original concept in the development of hydrogel materials for controlled release of charged organic compounds based on semi-interpenetrating polymer networks composed by an inert gel-forming polymer ...
  • Influence of Plasma-Activated Water on Physical and Physical–Chemical Soil Properties 

    Šimečková, Jana; Krčma, František; Klofáč, Daniel; Dostál, Lukáš; Kozáková, Zdenka (MDPI, 2020-08-22)
    Recently, the bactericidal and fungicidal effects of plasma-activated water (PAW) have been confirmed for its application in agriculture. Although the PAW application is beneficial in plant growth, no information is available ...
  • 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 ...
  • Impact of Microwave Plasma Torch on the Yeast Candida glabrata 

    Trebulová, Kristína; Krčma, František; Kozáková, Zdenka; Matoušková, Petra (MDPI, 2020-08-11)
    Recently, various cold plasma sources have been tested for their bactericidal and fungicidal effects with respect to their application in medicine and agriculture. The purpose of this work is to study the effects of a 2.45 ...
  • Properties of scaffolds prepared by fused deposition modeling of poly(hydroxyalkanoates) 

    Kovalčík, Adriána; Sangroniz, Leire; Kalina, Michal; Skopalova, Katerina; Humpolíček, Petr; Omastová, Mária; Mundigler, Norbert; Müller, Alejandro J. (Elsevier, 2020-10-15)
    Poly(hydroxyalkanoates) are biodegradable and biocompatible polymers suitable for tissue engineering. Fused depositon modeling (FDM) belongs to modern rapid prototyping techniques for the fabrication of scaffolds. In this ...
  • Hyaluronan-Arginine Interactions-An Ultrasound and ITC Study 

    Jugl, Adam; Pekař, Miloslav (MDPI, 2020-09-12)
    High-resolution ultrasound spectroscopy and isothermal titration calorimetry were used to characterize interactions between hyaluronan and arginine oligomers. The molecular weight of arginine oligomer plays an important ...
  • UV-Induced Nanoparticles-Formation, Properties and Their Potential Role in Origin of Life 

    Nejdl, Lukáš; Zemánková, Kristýna; Havlíková, Martina; Burešová, Michaela; Hynek, David; Xhaxhiu, Kledi; Mravec, Filip; Matoušková, Martina; Adam, Vojtěch; Ferus, Martin; Kapuš, Jakub; Vaculovičová, Markéta (MDPI, 2020-08-04)
    Inorganic nanoparticles might have played a vital role in the transition from inorganic chemistry to self-sustaining living systems. Such transition may have been triggered or controlled by processes requiring not only ...
  • Active biodegradable packaging films modified with grape seeds lignin 

    Vostrejš, Pavel; Adamcová, Dana; Vaverková, Magdalena Daria; Enev, Vojtěch; Kalina, Michal; Machovský, Michal; Šourková, Markéta; Márová, Ivana; Kovalčík, Adriána (The Royal Society of Chemistry, 2020-08-07)
    Biodegradable packaging materials represent one possible solution for how to reduce the negative environmental impact of plastics. The main idea of this work was to investigate the possibility of utilizing grape seed lignin ...
  • Enzymatic Hydrolysis of Poly(3-hydroxybutyrate-co-Hydroxyvalerate) Scaffolds 

    Kovalčík, Adriána; Obruča, Stanislav; Kalina, Michal; Machovský, Michal; Enev, Vojtěch; Jakešová, Michaela; Sobková, Markéta; Márová, Ivana (MDPI, 2020-07-05)
    Polyhydroxyalkanoates (PHAs) are hydrolyzable bio-polyesters. The possibility of utilizing lignocellulosic waste by-products and grape pomace as carbon sources for PHA biosynthesis was investigated. PHAs were biosynthesized ...
  • Research of transport and deposition of aerosol in human airway replica 

    Lízal, František; Jedelský, Jan; Elcner, Jakub; Ďurdina, Lukáš; Venerová, Tereza; Mravec, Filip; Jícha, Miroslav (EDP Sciences, 2010-11-24)
    Growing concern about knowledge of aerosol transport in human lungs is caused by great potential of use of inhaled pharmaceuticals. Second substantial motive for the research is an effort to minimize adverse effects of ...
  • Comparison of methods for evaluation of aerosol deposition in the model of human lungs 

    Bělka, Miloslav; Lippay, Josef; Lízal, František; Jedelský, Jan; Jícha, Miroslav (EDP Sciences, 2014-03-25)
    It seems to be very convenient to receive a medicine by inhalation instead of injection. Unfortunately transport of particles and targeted delivery of a drug in human respiratory airways is very complicated task. Therefore ...
  • 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. ...
  • 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. ...

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