Procházení Centrum materiálového výzkumu dle data publikování
Zobrazují se záznamy 1-20 z 30
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Research of transport and deposition of aerosol in human airway replica
(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 ... -
Hydrogels with micellar hydrophobic (nano)domains
(FRONTIERS MEDIA SA, 2015-10-31)Hydrogels containing hydrophobic domains or nanodomains, especially of the micellar type, are reviewed. Examples of the reasons for introducing hydrophobic domains into hydrophilic gels are given; typology of these materials ... -
The influence of barium sulphate and barium carbonate on the Portland cement
(Elsevier Ltd., 2016-08-03)Shielding of different types of radiation should be studied these days when there is a great development in the field of nuclear science. Barium ions can shield different type of radiation, therefore, by incorporation of ... -
Preparation of ultra-low volume weight autoclaved aerated concrete
(University of Chemistry and Technology, Prague, 2017-01-31)Autoclaved aerated concrete is a modern construction material that gains its popularity especially due to its thermal insulation performance resulting from low volume weight and porous structure with sufficient mechanical ... -
Preparation and Characterisation of Highly Stable Iron Oxide Nanoparticles for Magnetic Resonance Imaging
(Hindawi Publishing Corporation, 2017-02-23)Magnetic nanoparticles produced using aqueous coprecipitation usually exhibit wide particle size distribution. Synthesis of small and uniform magnetic nanoparticles has been the subject of extensive research over recent ... -
Lignitic humic acids as environmental friendly adsorbent for heavy metals
(Hindawi, 2017-03-05)Huminové kyseliny jako součást humusu se účastní transportu prospěšných i škodlivých druhů látek v přírodě. Díky jejich struktuře a vlastnostem mohou interagovat s kovovými ionty a tvořit s nimi relativně stabilní komplexy. ... -
Production of Polyhydroxyalkanoates Using Hydrolyzates of Spruce Sawdust: Comparison of Hydrolyzates Detoxification by Application of Overliming, Active Carbon, and Lignite
(MDPI AG, 2017-05-28)Polyhydroxyalkanoates (PHAs) are bacterial polyesters which are considered biodegradable alternatives to petrochemical plastics. PHAs have a wide range of potential applications, however, the production cost of this ... -
Fluorescence study of freeze-drying as a method for support the interactions between hyaluronan and hydrophobic species
(PLOS, 2017-10-03)A freeze-drying method enabling solubilization of hydrophobic species in aqueous solutions of native hyaluronan is described. The method is based on opening the access to supposed hydrophobic patches on hyaluronan by ... -
Thermodynamic analysis of chemically reacting mixtures – comparison of first and second order models
(Frontiers, 2018-03-01)Recently, a method based on non-equilibrium continuum thermodynamics which derives thermodynamically consistent reaction rate models together with thermodynamic constraints on their parameters was analyzed using a triangular ... -
Improving cytocompatibility of CdTe quantum dots by Schiff-base-coordinated lanthanides surface doping
(BioMed Central, 2018-04-19)Background: Suitable fluorophores are the core of fluorescence imaging. Among the most exciting, yet controversial, labels are quantum dots (QDs) with their unique optical and chemical properties, but also considerable ... -
Influence of alkali ions on the efficiency of shrinkage reduction by polypropylene glycol in alkali activated systems
(ICE Publishing, 2018-06-01)Alkali-activated materials, especially when activated by water glass, exhibit substantial drying shrinkage that hinders their broader industrial application. The effect of shrinkage-reducing admixtures (SRA), based on ... -
Pilot-scale production of poly--hydroxybutyrate with the cyanobacterium Synechocytis sp. CCALA192 in a non-sterile tubular photobioreactor
(Elsevier, 2018-07-20)The biopolymer poly--hydroxybutyrate (PHB) can be used as a promising bioplastic. It has a broad range of applications and is degraded relatively rapidly by soil organisms. Like many prokaryotes, the cyanobacterium ... -
Transesterification of Lactic Acid Oligomers with Ethanol, a Way to Anhydrous Ethyl Lactate: A Kinetic Study
(MDPI, 2018-08-15)A new method for the preparation of anhydrous ethyl ester of lactic acid was studied. The selected method is based on catalytic transesterification of lactic acid oligomers, which were prepared for this purpose by autocatalytic ... -
Rates of Reactions as a Mathematical Consequence of the Permanence of Atoms and the Role of Independent Reactions in the Description of Reaction Kinetics.
(Frontiers, 2018-09-01)Linear algebra treatment of the permanence of atoms (mass conservation) naturally leads to the transformation of formation or destruction rates of components of a reaction mixture into rates of reaction steps, which are ... -
Novel Riboflavin-Inspired Conjugated Bio-Organic Semiconductors
(MDPI, 2018-09-05)Flavins are known to be extremely versatile, thus enabling routes to innumerable modifications in order to obtain desired properties. Thus, in the present paper, the group of bio-inspired conjugated materials based on the ... -
Cement Kiln By-Pass Dust: An Effective Alkaline Activator for Pozzolanic Materials
(MDPI, 2018-09-19)Cement kiln by-pass dust (CKD) is a fine-grained by-product of Portland clinker manufacturing. Its chemical composition is not suitable for returning back into feedstock and, therefore, it has to be discharged. Such an ... -
Effect of Selected Commercial Plasticizers on Mechanical, Thermal, and Morphological Properties of Poly(3-hydroxybutyrate)/ Poly(lactic acid)/Plasticizer Biodegradable Blends for Three-Dimensional (3D) Print
(MDPI, 2018-10-03)This paper explores the influence of selected commercial plasticizers structure, which are based on esters of citric acid, on mechanical and thermal properties of Poly(3-hydroxybutyrate)/Poly(lactic acid)/Plasticizer ... -
How Humic Acids Affect the Rheological and Transport Properties of Hydrogels
(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
(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 ... -
A simple technique for assessing the cuticular diffusion of humic acid biostimulants
(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. ...