Materials Literature
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The objective of this work was to review the properties of selected specialty protein fiber knit fabrics suitable for everyday wear. Selected properties (dimensional stability to laundering, mass, thickness, and stitches per centimeter) of three commercially available fabrics were measured when new and after each laun…
We propose an asymmetric bilayer structure in which the magnetic remanence (MR) is controlled by the in-plane strain of the top NiFe2O4 (NFO) layer epitaxially constrained by the bottom Pb(Mg1/3Nb2/3)O3-PbTiO3 (PMN-PT) substrate. In this asymmetric structure, an electric-field-induced giant piezoelectric strain from t…
Inducing spontaneous endothelialization of synthetic cardiovascular implant in vivo is thought to be a promising approach to solve the surface-induced thrombosis and restenosis problem. In the present study, anti-CD34 antibody, a kind of special marker of EPC, was oriented immobilized on titanium surface by means of a…
Electronic properties of two-dimensional 2D graphene superlattice made with partial hydrogenation were thoroughly studied via density functional tight binding approach which incorporates the tight-binding method into the density functional formalism. The 2D pattern of hydrogen atoms on graphene was found to have great…
The details of the rotational dynamics of borohydride ions in both the ordered and disordered crystal phases of NaBH 4 and in the disordered crystal phase of KBH 4 were determined by quasielastic neutron scattering (QNS). Model fits of the QNS data indicate that the BH 4 − tetrahedron in the ordered phase of NaBH 4 ro…
The activity of zeolite MCM-22 in trapping nitrosamines, a class of well-known carcinogenic environmental pollutants, is reported in this article for the first time. MCM-22 possesses a set of unique porous structures and morphologies, making it possible to trap both volatile nitrosamines and bulky tobacco specific nit…
Surface texturization is an effective way to enhance the absorption of light for optoelectronic devices but it also aggravates the surface recombination by enlarging the surface area. In order to evaluate the influence of texture structures on the surface recombination, an effective surface recombination velocity is d…
Quantum wells with graded barriers are demonstrated as a means to control both the transition energy and electron-hole wave function overlap for quantum wells with an intrinsic internal electric field. In the case of c-axis grown ZnO/ZnMgO quantum wells, the graded barriers are produced by stepping the magnesium compo…
A terpolymer copolymerized from hexyl methacrylate, methyl methacrylate, and poly(ethylene glycol) methacrylate (PEGMA) was synthesized. Polymers containing 0-25 mol % PEGMA were studied. As the mole fraction of PEGMA in the polymer chains increased, the material becomes more hydrophilic as observed by a decrease in t…
PURPOSE: The present study deals with evaluation of crosslinked poly vinyl alcohol (PVA) as a potential disintegrant. METHODS: Crosslinking of PVA was carried out using glutaraldehyde as a crosslinker, in presence of acidic conditions. The crosslinking reaction was optimized for a) polymer: crosslinker ratio; b) tempe…
SUMMARY: *Apoplastic ascorbate has been proposed to confer resistance to oxidative stresses, e.g. ozone. We investigated reactive oxygen species (ROS)-induced secretion and catabolism of ascorbate. *Late-growth-phase cultured cells of rose and Arabidopsis were preloaded with [(14)C]ascorbate. Radiolabelled metabolites…
The electronic structure of ${\text{SrZn}}_{2}{\text{Sb}}_{2}$ and ${\text{YbZn}}_{2}{\text{Sb}}_{2}$ is investigated using density functional theory and high-resolution x-ray photoemission spectroscopy. Both traditional Perdew-Burke-Ernzerhof and state-of-the-art hybrid Heyd-Scuseria-Ernzerhof functionals have been e…
Using electron paramagnetic resonance, we find that vacuum annealing at 200 °C leads to a significant reduction in the silicon dangling bond (Si-db) defect density in silicon nanoparticles (Si-NPs). The best improvement of the Si-db density by a factor of 10 is obtained when the vacuum annealing is combined with an et…
Tissue-engineered blood vessel is one of the most promising living substitutes for coronary and peripheral artery bypass graft surgery. However, one of the main limitations in tissue engineering is vascularization of the construct before implantation. Such a vascularization could play an important role in graft perfus…
Bulk properties of ionic liquid crystals are investigated using density functional theory. The liquid crystal molecules are represented by ellipsoidal particles with charges located in their center or at their tails. Attractive interactions are taken into account in terms of the Gay–Berne pair potential. Rich phase di…
Textured Bi-substituted Ca2Co2O5 ceramics have been prepared using a coprecipitation method combined with spark plasma sintering. The Bi substitution is effective in increasing the grain orientation of the Ca2Co2O5-based ceramics (from 0.46 to 0.85). Electrical conductivity increases obviously with partial substitutio…
We investigated and compared the photoelectric behavior of the Pt sandwiched (Bi3.7Nd0.3)Ti3O12 (BNT) and Pb(Zr0.2Ti0.8)O3 (PZT) films deposited by sol-gel method. Based on the analysis of the photocurrent and I-V characteristics, the top and bottom Pt/film interface Schottky barriers are found to be more symmetric in…
Die Schichtmorphologie von etwa 2.2 nm dicken und bis zu 4 μm breiten einkristallinen Ceroxidnanoblättern (siehe Bild) entsteht durch zweidimensionale Selbstorganisation anfänglich gebildeter CeO2-Nanokristalle und nachfolgende Umkristallisation. Die geringe Dicke der Nanoblätter führt zu Größenquantelungseffekten und…
Resistivity measurements show that SrTiO3/LaTiO3/SrTiO3 heterostructures remain metallic even for single unit cell LaTiO3 layers. Hall resistances of all heterostructures are nonlinear functions of the applied field. The Hall data is analyzed in terms of a two-layer model, indicating that a low-mobility layer exists a…
Abstract Praseodymia gives rise to a rich phase diagram with a large number of phases between the limiting stoichiometries Pr 2 O 3 and PrO 2 that differ only slightly in oxygen content (Pr n O 2 n −2 ). This chemical and crystallographic variability allows the system to release or incorporate lattice oxygen easily at…