Materials Literature
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In this paper the current status of fuel cells is described with particular emphasis on high (T > 800 o C) and intermediate (T < 800 o C) temperature solid oxide fuel cells. Also the importance of the fuel cell technology is shown. Reviewed are the fundamental features, the basic principles, types of fuel cell, fabric…
Abstract DNA encapsulated carbon nanotubes are formed using a plasma ion irradiation method in electrolyte solutions with DNA, which can be regarded as electrolyte plasmas from the view point that the electrolyte solutions consist of positive and negative ions, and neutral particles in the same way as gas phase plasma…
Interfacial polyelectrolyte complexation (PEC) fiber has been proposed as a biostructural unit and biological construct for tissue engineering applications, with its ability to incorporate proteins, drug molecules, DNA nanoparticles, and cells. In this study, we evaluated the biocompatibility and blood compatibility o…
Abstract In this study a series of melt mixed multi‐walled carbon nanotube (MWNT)/Polyethylene composites with several carbon nanotube (CNTs) concentrations were investigated. A good dispersion of the nanotubes in the matrix was seen using scanning electron microscopy. Melt rheological measurements in dynamic mode wer…
WO 3 -TeO 2 glasses have been studied by quantum-chemical simulation and Raman spectroscopy. The results have been used to develop a model for the network of tungstate-tellurite glasses. The model allows one to correlate the structure and optical properties (in particular, the position and intensity of Raman bands) of…
Calcium hydroxide forms unstable reactive nanoparticles that are stabilized when they are dispersed in ethylene glycol or 2-propanol. The aggregation behavior of these particles was investigated by contrast-variation small-angle neutron scattering (SANS), combined with small-angle X-ray scattering (SAXS). Nanoparticle…
A PANI/TiO2 composite film deposited on the glass surface was successfully prepared using sol-gel dip-coating technique and chemical oxidation method. The film was characterized using XRD, AFM, and UV. The result showed that the TiO2 film consists of both cuboid-shaped and anatase-phased TiO2 nanoparticles. The averag…
This work reports on the microwave synthesis of tetrasulfonated tin phthalocyanine and tetrasulfonated tin α,β,γ-tetrabenzcorrole. The latter was only formed at low ratios (<1:8) of 4-sulfophthalic acid to urea. Both complexes are aggregated in aqueous media, but can be partly or fully disaggregated by the addition…
Thin films of various organic materials have been created by the matrix assisted pulsed laser evaporation (MAPLE) technique. The principles, advantages, and difficulties of deposition are discussed. The focus is on target preparation, solvents, studied materials, and growth rate. Measured solvent transmissions and the…
In this work, modifications in the structural, vibrational, optical, and surface morphological properties of 2MeV N+-ion irradiated α-MoO3 thin films are studied. Nitrogen irradiation up to the fluence of 1×1015ionscm−2 does not lead to any structural phase change. The irradiation induced formation of nanoscale defect…
Abstract Poly(ethylene terephthalate) (PET) fiber was treated with 60 Co‐ γ ‐ray and grafted with acrylic acid (AA). The resulting fibers were further grafted with chitosan (CS) via esterification. Afterward collagen (COL) was immobilized onto CS‐grafting fibers. The antibacterial activity of CS against Staphylococus…
OBJECT: Magnesium has recently become a material of interest as a biocompatible and biodegradable implant metal. Authors of several reports have noted the potential bone-cell activating or bone-healing effect of high Mg ion concentrations. The classic method for achieving intertransverse process fusion involves using…
The solubility of drugs in water is investigated in a series of papers and in the current work. The free energy of solvation, DeltaG*(vl), of a drug molecule in its pure drug melt at 673.15 K (400 degrees C) has been obtained for 46 drug molecules using the free energy perturbation method. The simulations were perform…
The method of molecular dynamics is used to treat the metastable states of Lennard-Jones crystal and liquid at different temperatures and pressures, including the negative-pressure region. Analysis is made of the pattern of relative position of surfaces of the equation of state of the crystal and liquid phases in the…
Submicrometer powders of Mn−Zn and Ni−Zn ferrites have been produced by carbon combustion synthesis of oxides (CCSO). The self-propagating temperature front had a maximum temperature of a up to 1300 °C and moved at a velocity 3.5 mm/s. Solid-state interactions between the precursors and crystal growth of the crystalli…
The structure of a three-dimensional mesophase has been studied by the methods of small-angle X-ray diffraction and reconstruction of electron-density maps of the cubic lattice. In the oriented samples based on monodendrons with partially fluorinated alkyl tails, this mesophase has been shown to coexist with a two-dim…
Barium zirconium titanate [Ba(Zr0.05Ti0.95)O3, BZT] thin films were prepared by pulsed laser ablation technique and dc leakage current conduction behavior was extensively studied. The dc leakage behavior study is essential, as it leads to degradation of the data storage devices. The current-voltage (I-V) of the thin f…
Molybdenum sulphide (MoS x ) particles were prepared from Na 2 MoO 4 and CH 3 CSNH 2 by the quick homogenous precipitation method within 5 min in alcohol–water solution at 82°C and normal pressure. The prepared MoS x particles were studied by X-ray powder diffraction (XRD), X-ray photoelectron spectroscopy (XPS), tran…
The maximally localized Wannier functions (MLWFs) of 32 ${A}^{N}{B}^{8\ensuremath{-}N}$ compounds, ranging from elemental group-IV solids to I-VII compounds, have been constructed according to the method of Marzari and Vanderbilt [Phys. Rev. B 56, 12847 (1997)]. The considered systems crystallize in the diamond, zinc-…
The dielectric definition of average energy gap E g of the chemical bond has been calculated quantitatively in Eu 3+ -doped 30 lanthanide compounds based on the dielectric theory of chemical bond for complex structure crystals. The relationship between the experimental charge transfer (CT) energy of Eu 3+ and the corr…