Materials Literature
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In this study, we have prepared PLGA (poly-D,L-lactide-co-glycolide) nanospheres loaded with biocompatible magnetic fluid and anticancer drug taxol by a modified nanoprecipitation technique and investigated their magnetic properties. A magnetic fluid, MF-PEG, with a biocompatible layer of polyethylene glycol (PEG), wa…
The effects of filler loading and immersion in water on the creep/ recovery behavior of composites made from MDF (medium density fiberboard) flour (as natural fiber) and recycled HDPE (high density polyethylene) (as resin) were studied (at 60, 70, and 80% by weight fiber loadings). Nominal density and dimensions of th…
The phase composition, the structural parameters, and the basic magnetic characteristics of a number of nanosized powders of simple spinel ferrites produced by the method of mechanochemical reactions from salt systems were studied. The influence of size and surface effects on the saturation magnetization and magnetic…
“Glass”, a frozen disordered-state, has been found in areas as diverse as amorphous solids, magnetic alloys, ferroelectrics, superconductors, and even in models of biological evolutions. In the present review we introduce a new class of glass–the “strain-glass”, which was discovered very recently. Strain glass is deri…
High-temperature and high-pressure behaviours of β-Ga 2 O 3 powder are studied by energy-dispersive x-ray diffraction in a diamond anvil cell (DAC). It is found that the phase transition from the monoclinic β-Ga 2 O 3 to the trigonal α-Ga 2 O 3 occurs at around 19.2 GPa under cold compression. By heating the powder to…
Quantitative analysis of the fission gas release characteristics during the voloxidation and oxidation and reduction of oxide fuel (OREOX) processes of spent pressurized water reactor (PWR) fuel was carried out by spent PWR fuel in a hot cell of the DUPIC Fuel Development Facility. The release characteristics of 85Kr…
Ferroelectric 1 mol.% La(3)+ and 0.5 mol.% Fe(3)+ codoped Pb[Zr0(0.54)Ti0(0.46)]O(3) ceramics were studied by means of multifrequency electron paramagnetic resonance (EPR) spectroscopy. The obtained results prove that iron is incorporated at the [Zr,Ti]-site, acting as an acceptor and building a charged Fe'(Zr,Ti) - V…
The stability of intrinsic and Al-doped single- and bilayer ZnO for thin-film CuInGaSe2solar cells, along with Al-doped Zn1−xMgxO alloy and Sn-doped In2O3(ITO) and F-doped SnO2, was evaluated by direct exposure to damp heat (DH) at 85°C and 85% relative humidity. The results show that the DH-induced degradation rates…
Abstract The electron density distribution of a light-induced molecular excited state, i.e. the high spin metastable state of [Fe(phen) 2 (NCS) 2 ], was determined from steady-state photocrystallographic measurements. We defined the experimental conditions under which the accuracy of the measured diffraction data is c…
The crystal structure of Al 4 B 2 O 9 , synthesized from Al(NO) 3 ·9H 2 O and B(OH) 3 via a sol-gel process, is studied and characterized by Rietveld refinements and grid search analyses combined with 11 B and 27 Al MAS NMR spectroscopy. The aluminum borate with a unit-cell composition of Al 32 B 16 O 72 is closely re…
The piezoelectric properties of (1 - x )(Bi 1/2 K 1/2 )TiO 3 – x BaTiO 3 ( x = 0.1) [abbreviated as BKT–BT10] ceramics prepared by ordinary solid-state reaction and reactive templated grain growth (RTGG) using platelike Bi 4 Ti 3 O 12 particles as a template were investigated. All samples showed a single-phase perovsk…
A multifactor aging framework is described that links the work of those involved in studying aging of dielectrics to the needs of those involved in asset management and network performance.
Abstract Summary: Dielectric spectroscopy in the frequency domain and thermally stimulated depolarization currents techniques, covering together a broad frequency range (10 −4 –10 9 Hz), were employed to investigate molecular dynamics in relation to structure and morphology in polymeric nanocomposites. Several systems…
A new type of polymer–liquid crystal (LC) composite with photovariable dichroism and birefringence is described. Porous stretched polyethylene (PE) films with pores size in the range 50–500 nm were used as polymer matrices. A photochromic cholesteric mixture based on a commercial nematic mixture doped with azobenzene…
The methods of galvanostatic intermittent titration, cyclic voltammetry, and electrode impedance spectroscopy are used to study the behavior of tungsten (VI) oxide film electrodes free of binding and conducting additives in the course of reversible lithium intercalation from nonaqueous electrolyte at 25°C. The studies…
Because of its apparent simplicity, diffusion of hydrogen in solids can be regarded as a general model system for diffusion. However, only rudimentary knowledge exists for the dynamics of hydrogen in complex hydrides. Insight into the specific diffusion process is given by hydrogen-deuterium exchange experiments. Ther…
Chemical Structural Analysis of Diamondlike Carbon Films with Different Electrical Resistivities by X-ray Photoelectron Spectroscopy, Takabayashi, Susumu, Okamoto, Keishi, Shimada, Kenya, Motomitsu, Kunihiko, Motoyama, Hiroaki, Nakatani, Tatsuyuki, Sakaue, Hiroyuki, Suzuki, Hitoshi, Takahagi, Takayuki
Understanding the electronic properties of quasicrystals, in particular the dependence of these properties on dimension, is among the interesting open problems in the field of quasicrystals. We investigate an off-diagonal tight-binding hamiltonian on the separable square and cubic Fibonacci quasicrystals. We use the w…
Several series of chlorine‐substituted rod‐like liquid crystalline compounds have been synthesised containing a different number of lactate units in the chiral chain. Sequences of phases and phase transition temperatures were determined by differential scanning calorimetry, polarising optical microscopy and X‐ray diff…
Pancreatic cancer is one of the most highly fatal cancers and is generally resistant to chemotherapy. Currently, gemcitabine appears to be the only effective agent for its treatment and is the preferred first-line therapy. However, the clinical impact of gemcitabine remains modest due to a high level of inherent and a…