Materials Literature
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Complementary strategies of small-angle x-ray scattering (SAXS) and crystallographic analysis are often used to determine atomistic three-dimensional models of macromolecules and their variability in solution. This combination of techniques is particularly valuable when applied to macromolecular complexes to detect ch…
The properties of unidirectional filament-wound organoplastics based on ED-22 epoxy oligomer modified by PSK-1 polysulfone and Rusar or Armos aramid filaments were studied. It was shown that the modification of ED-22 epoxy resin with PSK-1 thermoplastic increases significantly (2.5 times) the fracture toughness of the…
The thermoelectric properties of double perovskite Sr 2 TiMoO 6 have been systematically proposed by using semi-classic Boltzmann transport theory based on the electronic structure from first principle. The transport properties for the spin-up and spin-down electrons of double perovskite Sr 2 TiMoO 6 compounds have be…
It is shown in terms of the phenomenological Landau theory of phase transitions that a phase transition to an inhomogeneous polar phase preceding in temperature a phase transition to a homogeneous polar state is possible. As a result of solving a boundary eigenvalue problem for the polarization equilibrium equation an…
Abstract
Currently available bioprosthetic heart valves have been successfully used clinically; however, they have several limitations. Alternatively, tissue-engineering techniques can be used. However, there are limited data concerning the impact of storage conditions of scaffolds on their biomechanics and morphology. The aim…
Three Schiff base compounds, N 1 ,N 2 -bis(3-nitrobenzylidene)phenylene diamine (NBBA), 2-methyl- N -(3-nitrobenzylidene)aniline (MNBA) and N -(2-chlorobenzylidene)-4-nitroaniline (CBNA) were synthesized, characterised and applied for the first time as potential mild steel (MS) corrosion inhibitors in 1 M HCl at 30 °C…
Investigation on band gap energy and effect of various surface plasma treatments on nano structured SnO2 semiconductor
In this paper, a plasmonic cloak is designed at 1.55 μm in an epsilon-near-zero (ENZ) comprised of alternating layers of a graphene-silica stack. Because the inclusion is covered by Au and moreover, the ENZ's boundaries are sealed by this material with optimized thicknesses, such a cloak can only work for TM incidence…
A long wavelength infrared metamaterial absorber using electric field driven LC (ELC) resonating structure is reported in this paper. The structure shows an absorption peak of 96.2% at 30 THz (10.00 µm), The structure is studied for oblique incidences under TE and TM polarizations. The structure behaves as an absorber…
The goal of this research is to evaluate the impact of different parameters on corticosteroids entrapment in biocompatible poly-ε-caprolactone nanoparticles. These findings provide better insight on the designing carriers for drugs. Nanocapsules were synthesized by interfacial deposition and their morphology was deter…
Dynamic light scattering (DLS) is a versatile tool for sizing nanoparticles (NPs) suspended in fluids. In this paper, we apply and discuss modulated 3D cross-correlation DLS and UV-vis-NIR transmittance spectroscopy for the study of commercial iron oxide NP aqueous suspensions (Fe3O4and Fe2O3, with nominal average siz…
The problem of heat distribution in semiconductor materials irradiated with sharply focused lowenergy electron beams in the absence of heat exchange between the target and external medium is considered by methods of mathematical modeling. The model is based on solving a multidimensional steady-state heatconduction equ…
Structural aspects of powders containing magnetic nanoparticles Fe 3 O 4 /CoFe 2 O 4 with the anticipated “core-shell” structure are considered by means of comparative analysis with individual particles of Fe 3 O 4 , CoFe 2 O 4 in accordance of data obtained from X-ray powder diffraction and small-angle scattering of…
The paper presents the results of studies on silicon nanotubes production in an arc discharge. The features of the experiments, the description of the experimental setup are given. A description of the obtained nanostructures studied on an electron microscope is presented. It is unequivocal to assert that the obtained…
Aim: Polyether pores were designed and tetracycline-loaded mesoporous silica materials, with their surface decorated by silver ions, were prepared, with the aim of reaching high antibacterial activity. Meanwhile, mammalian cell cytotoxicity and hemolytic effects were not observed using material concentrations tenfold…
It is shown that the maximum superconducting transition temperature, T c for ZrP 1.25 Se 0.75 is increased from 5.8 K to 7.2 K by partially substituting a non-magnetic rare earth atom Lu for Zr and on the other hand is decreased by substituting other non-magnetic rare earth atoms Y and La. Obviously, T c is raised whe…
‘Green rust’ intercalated with aromatic sulfonates can potentially be effective materials for the treatment of soil and groundwater polluted with chlorinated benzenes. We investigated the potential intercalation of benzene sulfonate (BzS) and 1,3-benzene disulfonate (BzDS) into green rust sulfate (GRSO4) via ion excha…
The decomposition of tetrachloromethane and tetrafluoromethane by air plasma in the presence of methane has been studied using an ac plasma torch of up to 500 kW power with rail electrodes. Methane reacts with air in the partial oxidation mode to form hydrogen, which reacts with a halogen to produce the hydrogen halid…
We experimentally examine foam dynamics and foamability using a thermoresponsive polymer, Poly(n-isopropylacrylamide) or PNIPAM. Under a constant gas injection, our results show that temperature significantly affects the foam height produced. A stable foam was observed at room temperature while unstable at temperature…