Browsing Ústav fyzikální a spotřební chemie by Title
Now showing items 1-20 of 77
-
Active biodegradable packaging films modified with grape seeds lignin
(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 ... -
Aerosol Flow Homogenization in the Spray Polyphenylene Vinylene Thin Film Deposition
(IOP Publishing, 2014-05-15)Two different spray deposition (SD) techniques were compared on polyvinylene (MDMO-PPV) used as a model material. SD and homogenized (h-SD) techniques were compared. Films of about 1 micron thickness were prepared by SD ... -
Agarose Hydrogels Enriched by Humic Acids as the Complexation Agent
(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 ... -
Aggregation behavior of novel hyaluronan derivatives-a fluorescence probe study
(Springer-Verlag, 2008-11-01)Aggregation properties of hydrophobized hyaluronan (hHA) in different molecular weights and degree of substitution were studied by pyrene and perylene fluorescence method. The critical aggregation concentration (cac) was ... -
Application of low temperature plasmas for restoration/conservation of archaeological objects
(IOP Publishing, 2014-12-18)Nízkoteplotní vodíkové plazma buzené za sníženého tlaku bylo používáno ke studiu vlivu průběhu a podmínek na odstraňování korozních produktů. Plasma bylo buzeno RF zdrojem v pulsním i kontinuálním režimu při tlacích 100-200 ... -
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 ... -
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 ... -
Atmospheric Pressure Plasma Polymerized Oxazoline-Based Thin Films-Antibacterial Properties and Cytocompatibility Performance
(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, ... -
Atomic force microscopy analysis of nanoparticles in non-ideal conditions
(Springer Open, 2011-08-30)Nanoparticles are often measured using atomic force microscopy or other scanning probe microscopy methods. For isolated nanoparticles on flat substrates, this is a relatively easy task. However, in real situations, we often ... -
Barrier SiO2-like coatings for archaeological artefacts preservation
(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 ... -
Biochar Texture – A Parameter Influencing Physicochemical Properties, Morphology, and Agronomical Potential
(MDPI, 2022-07-28)Biochar represents a stable form of carbon-rich organic material produced by the pyrolysis of various biomass residues. It has the potential to stabilize organic carbon in the soil and improve soil fertility, water retention, ... -
Cold-setting Inkjet Printed Titania Patterns Reinforced by Organosilicate Binder
(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. -
Combination of Hypotonic Lysis and Application of Detergent for Isolation of Polyhydroxyalkanoates from Extremophiles
(MDPI, 2022-04-26)Production of polyhydroxyalkanoates (PHA), microbial biopolyesters, employing extremophilic microorganisms is a very promising concept relying on robustness of such organisms against microbial contamination, which provides ... -
Comparative Study of Binding Behaviour of Cu(II) with Humic Acid and Simple Organic Compounds by Ultrasound Spectrometry
(Bentham Science Publihers, 2011-11-12)Several simple organic (hydroxy)acids as models of principal functional moieties of humic acids and the copper ion as a model ion were used to investigate the metal-humic interactions. The quantum chemical calculations ... -
Comparison of methods for evaluation of aerosol deposition in the model of human lungs
(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 ... -
Complexation of Copper(II) with Humic Acids Studied by Ultrasound Spectrometry
(Hindawi Publishing Corporation, 2012-05-14)Copper biogeochemistry is controlled by bonding to natural organic matter. The soluble forms of bonded copper can be more biologically active due to the higher migration in environmental systems and instability of some ... -
Compositional and Temperature Effects on the Rheological Properties of Polyelectrolyte–Surfactant Hydrogels
(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 ... -
Conductive Polymer PEDOT:PSS-Based Platform for Embryonic Stem-Cell Differentiation
(MDPI, 2022-01-20)Organic semiconductors are constantly gaining interest in regenerative medicine. Their tunable physico-chemical properties, including electrical conductivity, are very promising for the control of stem-cell differentiation. ... -
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 ... -
DC Underwater Capillary Discharge With Symmetrical Hole: Diagnostics and Pumping Effect
(IOP Publishing, 2014-06-03)Capillary discharge investigated by this work was created in the reactor using positive half-cycle of AC high voltage up to 2 kV. Electric field was created between two electrodes which were separated by the dielectric ...