Browsing Centrum materiálového výzkumu by Title
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Biotechnological Conversion of Grape Pomace to Poly(3-hydroxybutyrate) by Moderately Thermophilic Bacterium Tepidimonas taiwanensis
(MDPI, 2021-09-01)Polyhydroxyalkanoates (PHA) are microbial polyesters that have recently come to the forefront of interest due to their biodegradability and production from renewable sources. A potential increase in competitiveness of PHA ... -
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 ... -
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 ... -
Determination of Mercury in Fish Sauces by Thermal Decomposition Gold Amalgamation Atomic Absorption Spectroscopy after Preconcentration by Diffusive Gradients in Thin Films Technique
(MDPI, 2020-12-12)The analysis of mercury in food presents a challenge for analytical chemists. Sample pre-treatment and the preconcentration of mercury prior to measurement are required, even when highly sensitive analytical methods are ... -
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 ... -
FDM 3D Printed Composites for Bone Tissue Engineering Based on Plasticized Poly(3-hydroxybutyrate)/poly(d,l-lactide) Blends
(MDPI, 2020-11-27)Tissue engineering is a current trend in the regenerative medicine putting pressure on scientists to develop highly functional materials and methods for scaffolds’ preparation. In this paper, the calibrated filaments for ... -
The First Insight into Polyhydroxyalkanoates Accumulation in Multi-Extremophilic Rubrobacter xylanophilus and Rubrobacter spartanus
(MDPI, 2021-05-01)Actinobacteria belonging to the genus Rubrobacter are known for their multi-extremophilic growth conditions-they are highly radiation-resistant, halotolerant, thermotolerant or even thermophilic. This work demonstrates ... -
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 ... -
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 ... -
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 ... -
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 ... -
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 ... -
Introducing the Newly Isolated BacteriumAneurinibacillussp. H1 as an Auspicious Thermophilic Producer of Various Polyhydroxyalkanoates (PHA) Copolymers-1. Isolation and Characterization of the Bacterium
(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 ... -
Introducing the Newly Isolated BacteriumAneurinibacillussp. H1 as an Auspicious Thermophilic Producer of Various Polyhydroxyalkanoates (PHA) Copolymers-2. Material Study on the Produced Copolymers
(MDPI, 2020-06-05)Aneurinibacillussp. H1 is a promising, moderately thermophilic, novel Gram-positive bacterium capable of the biosynthesis of polyhydroxyalkanoates (PHA) with tunable monomer composition. In particular, the strain is able ... -
Investigation Of Electric And Thermal Properties Of Alkali-Activated Aluminosilicates With A CNT Admixture
(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, ... -
Isolation of poly(3-hydroxybutyrate) from bacterial biomass using soap made of waste cooking oil
(Elsevier, 2021-04-01)The aim of this work was to develop a soap-based method for the isolation of poly(3-hydroxybutyrate) from bacterial biomass. The method consisted of adding soap derived from waste cooking oil to a concentrated (25%) biomass ... -
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. ... -
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 ... -
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 ...