Materials Literature
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In the structural analysis of proteins via X-ray diffraction, a rate-limiting step is in favourable nucleation, a problematic obstacle in successful generation of protein crystals. Here graphene and graphene oxide were applied to protein crystallisation trials, offering improvements in crystalline output and nucleatio…
Glasses from the SiO2-P2O5-K2O-CaO-MgO-CuO system acting as slow release fertilizers were synthesized by the melt-quenching technique. Influence of copper addition on structure of the glasses was evaluated by XRD, SEM, FT-IR and Raman spectroscopy. Chemical activity of the glasses in 2 wt.% citric acid solutions was m…
Di-tert-butyl peroxide (DTBP) is widely used as modifier, cross-linking agent and polymerization initiator in industry although it is a reactive and exothermically unstable peroxide. So far, available thermal analyses were most based on DTBP in diluents. Thermal activities of pure DTBP (97% purity) were studied in thi…
The relationship between the electrochemical performance of an anode in a solid oxide fuel cell and the distribution of yttrium-doped barium zirconate (BZY) in the electrochemically active zone of nickel (Ni)/yttria-stabilized zirconia (YSZ) anodes was investigated to clarify the promoting effect of BZY on electrochem…
A glass of the wt% composition 6B2O3·25Al2O3·10MgO·59SiO2 was melted and annealed in order to study the influence of boron on the surface crystallisation of cordierite. The samples were annealed at 1050 °C for up to 3 h in order to crystallise indialite and analysed using XRD, AFM and SEM-based techniques, especially…
Eu‐doped ZnO nanorod ordered array thin films were synthesized on glass substrates with a ZnO seed layer via hydrothermal method. XRD reveals that the (002) diffraction peak of films annealed in hydrogen is sharper than that annealed in air. SEM reveals that the nanorods of films annealed in hydrogen are shortened and…
Aliphatic polyesters and cyclodextrins are widely used for biomedical applications, due to their biocompatible and biodegradable character, and to the possibility to host molecules of pharmaceutical interest for the latter. Cyclodextrins have been used as initiators or co-initiators for the ring-opening polymerization…
Reactions of TabHPF(6) (Tab = 4-(trimethylammonio)benzenethiolate) with three equiv. of M(OAc)(2)·2H(2)O (M = Zn, Cd) gave rise to two tetranuclear adamantane-like compounds, [M(4)(μ-Tab)(6)(Tab)(4)](PF(6))(8)·S (·S: M = Zn, S = DMF·4H(2)O; ·S: M = Cd, S = DMF·5H(2)O). The similar reactions of MCl(2) (M = Zn, Cd, Hg)…
Apart from specialized space requirements current development in applications of thermoelectric generation mainly relate to reducing harmful carbon emissions and decreasing costly fuel consumption through the recovery of exhaust heat from fossil fuel powered engines and emissions from industrial utilities. Focus on th…
Electron-induced chemistry on surfaces plays a key role in focused electron beam induced processing (FEBIP), a single-step lithography technique that has increasingly gained interest in the past decade. It is crucial for the understanding and modelling of this process to know the role of the surface in the electron-in…
Nephrogenic systemic fibrosis (NSF) is a rare fibrosing disorder of the skin and joints that occurs in patients with advanced renal insufficiency. This condition is progressive and can be seriously disabling. Gadolinium based contrast agent (GBCA) has been identified as a potential cause of this condition. A 56-years-…
We present results of an experimental study of magnetoresistance (MR) in insulating NbSi amorphous alloys sample showing Variable Range Hopping (VRH) conductivity. The MR is found to be negative in a wide range of low temperature (4.2-20 K) and in the range of moderate magnetic fields (0-4 T). We made tentative analys…
Reaction of copper(I) acetate and 4-amino-3,5-di(2-pyridyl)-1,2,4-triazole (adpt) in methanol under ambient conditions yields octanuclear [Cu(II)(8)(dpt)(4)(OH)(4)(OAc)(8)]; OAc = acetate anion, and dpt(-) = anion of deaminated adpt, 3,5-di(2-pyridyl)-1,2,4-triazolate. However, reaction of copper(ii) acetate with dptH…
This study focuses on the transport behavior of model polymeric nanoparticulate drug delivery systems (PNDDSs) across ryegrass roots to determine whether uncontrolled and accidental releases of PNDDSs may enter into the food chain. It was shown that uptake of PNDDS ranging from 46 nm to 271 nm into ryegrass roots coul…
Polypropylene layered silicate nanocomposites based on muscovite clay were prepared via melt compounding using Thermo Haake internal mixer. Muscovite was organically modified with cetyltrimethylammonium bromide (CTAB). Poly(propylene-g-maleic anhydride) copolymer (PP-g-MAH) and polypropylene-methyl polyhedral oligomer…
Abstract Simulations utilising the finite element method (FEM) have been produced in order to investigate aspects of circular extraordinary magnetoresistance (EMR) devices. The effect of three specific features on the resultant magnetoresistance were investigated: the ratio of the metallic to semiconducting conductivi…
Some new an aqueous polyurethane acrylate (waterborne binder) based on polyethylene glycol with different M. wt. mixed with polyol were carried out. Seven different polyurethane acrylate co-polymers were prepared aiming at substituting the two hydroxyl groups of polyethylene glycol (6000, 12,000 and 20,000 g/mol) and…
Based on the electromagnetic wave propagation and attenuation laws, a three-layered cement-based microwave absorber was designed, which owns an impedance-graded structure. The surface layer is made of mortar with 10% crumb rubber replacing sand,easily realizes matching to the free space. The last layer mortar comprise…
Benzyl-n-hexadecyl dimethylammonium chloride (BHDC) monolayer-stabilized gold nanoparticles were synthesized in a two-phase liquid-liquid system and found to self-assemble into varied structures under the control of temperature at the air-water interface. It has been demonstrated that the π-π stacking interactions bet…
Chitin nanofibers (CNFs) processed from second most abundant biomolecule chitin were loaded with gold metallic nanoparticles (Au NPs) to obtained hybrid organic-inorganic composite which was molded in different forms dispersion, flakes, powder, and transparent thin film. First pre-organized Au NPs were prepared in sol…