Ústav fyzikální a spotřební chemie
Procházet dle
Poslední příspěvky
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The utilization of biochar as a conditioner for soil enrichment
(Copernicus, 2021-04-28)The contribution describe cultivation process of Zea mays. The effect of soil and biochar on plant growth is discussed. -
The study of the hydrogel systems with micellar nanodomains and the effect of the pH changes on their properties
(TANGER Ltd., 2021-01-01)Interaction between polyelectrolyte and oppositely charged surfactant leads to a formation of a hydrogel with micellar nanodomains. The main focus of this work was to monitor and study how pH and its changes affect mainly ... -
Controlling the internal microstructure and properties of physically cross-linked PVA hydrogels by the rate of freezing
(TANGER Ltd., 2021-01-01)PVA hydrogels can be formed via physical crosslinking (e.g. by cyclic freezing/thawing of aqueous polyvinyl alcohol solutions) or with a chemical cross-linker. Physical crosslinking is more useful for biomedical applications ... -
Thermodynamic Analysis of the Landolt-Type Autocatalytic System
(MDPI, 2021-10-28)A recent work demonstrated on the example of the Landolt-type reaction system how the simplest autocatalytic loop is described by the kinetic mass action law and proper parametrization of direct and autocatalytic pathways. ... -
Study of Optical and Electrical Properties of Organic Thin Films for Photovoltaic Applications
(Kaunas University of Technology, 2015-09-02)The paper deals with the study of optical, electrical and dielectric properties of thin film organic materials suitable for the preparation of optoelectronic devices (e.g. photodiodes, phototransistors, photovoltaic cells). ... -
Simulation and Diagnostics of Plasma Chemical Processes during Microwave Plasma Synthesis of Graphene Nanosheets form Ethanol
(Tanger, 2021-02-01)Plasma synthesis by ethanol decomposition in microwave atmospheric torch is a simple, efficient, single-step scalable method suitable for volume production of graphene nanosheets. In our work, we studied influence of ... -
New possibility for characterization of dissociation behaviour of supramolecular electrolytes: results obtained for the International Humic Substances Society standard and reference samples by coulometry
(Springer, 2021-06-24)Background: Humic substances can be considered as polyelectrolytes with supramolecular character and complicated behaviour in water environment. The fractions of humic substances dissolved in water are the most active ones ... -
Preparation, characterization and in vitro bioactivity of polyvinyl alcohol-hydroxyapatite biphasique membranes
(Slovak University of Technology in Bratislava, 2013-05-22)Paper focused on preparation, characterisation of polyvinyl alcohol-hydroxyapatite membranes with various content of hydroxyapatite filler in polyvinyl alcohol matrix and hydroxyapatite amount influence on composite in ... -
Polarity-Based Sequential Extraction as a Simple Tool to Reveal the Structural Complexity of Humic Acids
(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
(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
(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
(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.)
(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
(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
(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
(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
(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
(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
(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)
(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 ...
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