Materials Literature
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The authors consider the main aspects of the rational use of the novel inotropic drug levosimendan in cardiosurgical patients on the basis of the results of the trials described in the literature and on their own findings in this review. The purpose of the analysis made was to provide a rationale for the effective use…
This study presents the determination of the transport properties of eucalyptol, which is a key aroma compound in fresh tropical herbs through different polymeric packaging materials. Packaging films used in this study were polyethylene, polypropylene, Nylon, polyethylene terephthalate and polylactide (PLA1 and PLA2).…
Silica-manganese oxides with a core-shell structure were synthesized via precipitation of manganese oxides on the <TEX>$SiO_2$</TEX> core while varying the concentration of a precipitation agent. Elemental analysis, crystalline property investigation, and morphology observations using low- and high-resolution electron…
A variety of features are thought to contribute to the oligomeric and topological specificity of coiled coils. In previous work, we examined the determinants of oligomeric state. Here, we examine the energetic basis for the tendency of six coiled-coil peptides to align their α-helices in antiparallel orientation using…
Shape memory polyurethane (SMPU), grafted with a fluorescent dye (Rhodamine, Mehylene violet, or Fluorescein) through an allophanate linking, was tested for the fluorescence and the shape recovery effect. The main chain of SMPU was composed of 4,4'-methylenebis(phenylisocyanate) (MDI), poly(tetramethyleneglycol) (PTMG…
Homo- and heteroleptic Pd(II)-macrocomplexes of different geometries and bearing 4-pyridinemethylene-end-capped polymers of l and rac-lactide were successfully obtained for the first time. The reversible macroligand coordination to Pd(II) was proved to occur in solution.
Monodispersed Ag/ core/shell nanoparticles were synthesized in solution via colloid-seeded deposition process using Ag nanoparticles as colloid seeds and as Ti-source respectively. Silver nitrate was reduced to Ag nanoparticles with in the presence of CTAB as stabilizing agent. The titania sols hydrolyzed by the solut…
Abstract A well‐defined multiarm star copolymer poly(styrene)‐ b ‐poly(ε‐caprolactone) (PSOH‐ b ‐PCL) with an average number of PCL arms per molecule of 60 has been prepared. 4‐Chloromethyl styrene (4‐CMS) was polymerized by means of atom transfer radical polymerization (ATRP) to obtain a hyperbranched poly(styrene) w…
We present the current controlled motion of dynamic soliton embedded in spin wave background in ferromagnetic nanowire. With the stronger breather character we get the novel magnetic rogue wave and clarify its formation mechanism. The generation of magnetic rogue wave is mainly arose from the accumulation of energy an…
We report on the design, fabrication, and characterization of GaN interband tunnel junction showing forward tunneling characteristics. We have achieved very high forward tunneling currents (153 mA/cm2 at 10 mV, and 17.7 A/cm2 peak current) in polarization-engineered GaN/InGaN/GaN heterojunction diodes grown by plasma…
Review of theoretical methods for description of thermoelectrical properties of two-phase macroscopically inhomogeneous media is given. Description by means of a hierarchical model of percolation structure is given, allowing a description on a qualitative and quantitative level of the basic regularities of effective t…
We investigated the microscopic and electronic structures amorphous oxide semiconductors InGaZnO$_{4}$ (a-IGZO) and the role of O-deficiency through the first-principle calculations. The structure of the amorphous oxide is complicated by the admixture of many different kinds of substructures, however it is surprisingl…
Graphene- the wonder material has attracted a great deal of attention from varied fields of condensed matter physics, materials science and chemistry in recent times. Its 2D atomic layer structure and unique electronic band structure makes it attractive for many applications. Its high carrier mobility, high electrical…
We demonstrate 16 times increase in light absorption nano-structured metal compared to the flat surface by fabricating a subwavelength grating on gold surface. This light-trapping phenomenon can be used in many areas from solar energy conversion to photovoltaics. Here, we describe application to field enhancement in p…
Introduction to XAFS. A Practical Guide to X-ray Absorption Fine Structure Spectroscopy, by Grant Bunker, Cambridge, Cambridge University Press, 2010, 268 pp., £55.00 (hardback), ISBN 9780521767750...
Since the discovery of carbon nanotubes (CNTs) in the early 1990s, there has been enormous interest in trying to synthesize and understand their growth mechanism. This is required in order to successfully integrate them into new devices and applications that exploit their remarkable physical properties, including high…
Frictional characteristics of woven fabrics can determine smoothness and softness values of textiles. In this paper, we have studied the influence of factors such as temperature, relative humidity, fabric structure, type of fiber material, and direction of motion on roughness properties of fabric surface using respons…
Abstract Computer simulations dealing with the phase transitions and phase diagrams of polymer solutions, polymer mixtures, and polymers in heterogeneous environments are still a methodological challenge, since nontrivial structure occurs from the Angstrom‐scale of covalent chemical bonds to the micrometer scale in th…
The development of electromagnetic (EM) metamaterials for perfect lensing and optical cloaking has given rise to novel multilayer bandgap structures using stacks of positive and negative index materials. Propagation of a collection of TE or TM plane waves, comprising the angular plane wave spectrum, through such struc…
Electron paramagnetic resonance spectra of homoleptic and mixed-ligand molybdenum tris(dithiolene) complex anions [Mo(tfd)(m)(bdt)(n)](-) (n + m = 3; bdt = S(2)C(6)H(4); tfd = S(2)C(2)(CF(3))(2)) reveal that the spin density has mixed metal-ligand character with more ligand-based spin for [Mo(tfd)(3)](-) and a higher…