Materials Literature
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Zinc phosphate glass is considered to be the main constituent of tribofilms generated under boundary lubrication with zinc dialkyldithiophosphate (ZDDP), a well-known antiwear additive. The reaction occurring during friction between zinc phosphate glasses and steel native iron oxide layer is investigated by both an ex…
ZnSe nanowires were grown onto Mo transmission electron microscopy (TEM) grids by MBE by suitably varying the growth parameters. In situ and high-resolution TEM studies were carried out to understand the structure, defects, and growth mechanism of this nanowire. The nanowire morphology is very sensitive to the growth…
OBJECTIVES: The aim of this study was to evaluate histologically the effect of natural anorganic bovine-derived hydroxyapatite matrix (ABM) coupled with a synthetic cell-binding peptide on the healing of critical size calvarial defects in rats. MATERIAL AND METHODS: Sixteen 4-month-old rats were used in the study. A 5…
Abstract BACKGROUND: Materials with antibacterial surface properties have attracted extensive scientific interest for research and development in the battle against microbial contamination. The application of antimicrobial polymers minimizes environmental problems and enhances the efficiency, selectivity and lifetime…
Chlorid mit Kontrollfunktion: Die Entdeckung eines molekularen Erkennungsmotivs, das auf der Koordination eines Anions an ein Palladiumzentrum beruht, wird zur effizienten Bildung eines Rotaxans und als Grundlage für ein molekulares Shuttle genutzt. Beim Austausch des Gegenions – Chlorid gegen Hexafluorophosphat – wec…
Abstract The synthesis and full characterization of new bis‐indolylmethanes containing thienyl and bithienyl moieties are reported. The sensor ability of the compounds in the presence of halide ions (F−, Cl−, Br−, and I−), NO , ClO , SO , CN−, and OH− ions was investigated in acetonitrile. The experimental results ind…
The H flux to Si growth flux ratio is experimentally determined under state-of-the-art silicon thin-film deposition conditions by employing the recently introduced etch product detection technique. Under the technologically relevant high-pressure depletion conditions and for different process parameter settings such a…
Characteristics of GaN-based photonic crystal surface emitting lasers (PCSELs) were investigated and analyzed. The GaN-based PCSEL emits a blue wavelength at 401.8 nm with a linewidth of 1.6 Å and shows a threshold energy density about 2.7 mJ/cm2 under the optical pumping at room temperature. The lasing wavelength emi…
MgB 2 samples with 3 at. % Cu addition were synthesized by means of in situ sintering at different temperatures (525, 575, and 850 °C). Based on thermal analysis, phase identification, and microstructural observation, it is first found that the Cu addition mainly concentrates at the edge of the void in the form of Mg2…
Vertically well-aligned single crystal Ni31Si12 nanowire (NW) arrays were epitaxially grown on Ni31Si12 films preferentially formed on Ni foil substrates with a simple vapor phase deposition method in one step. The Ni31Si12 NWs are several micrometers in length and 50–80 nm in diameter. The resistivities of the Ni31Si…
We calculate the Josephson current in a diffusive superconductor/ferromagnet/superconductor junction, where the ferromagnetic region contains multiple layers (or domains). In particular, we study a configuration where there are two layers with an arbitrary relative in-plane magnetization orientation and also include n…
We investigate the dynamics of a thin liquid film on an inclined planar substrate in the presence of an insoluble surfactant on its free surface. We consider both the linear and nonlinear regimes. The linear regime is examined through the Orr-Sommerfeld eigenvalue problem of the full Navier-Stokes and concentration eq…
Abstract Experimental cloud‐point data were obtained by cloud‐point titration. The phase diagram for a ternary system of water–dimethylformamide–polyacrylonitrile was determined by numerical calculation on the basis of the extended Flory–Huggins theory and was found to agree well with the cloud‐point data. To construc…
Iron-filled carbon nanotubes (Fe-CNTs) were used to prepare probes for magnetic force microscopy (MFM) by attaching them to the tips of conventional atomic force microscopy cantilevers. An optimized chemical vapor deposition process, employing a two stage furnace and ferrocene as a precursor, supplied the homogeneousl…
We report the reduction in basal-plane stacking faults (BSFs) in m-plane GaN grown on m-plane SiC. The origin of BSFs is linked to heteronucleation of m-plane GaN and the presence of N-face basal-plane sidewalls of three-dimensional islands. Graded AlGaN layers help to alleviate mismatched nucleation and the generatio…
Abstract A commercial norbornyl‐functionalized linseed oil, blended with a bicyclic norbornene‐based crosslinking agent (at loadings ranging from 0 to 50 wt %) undergoes ring‐opening metathesis polymerization with the 1st generation Grubbs' catalyst to form a biorenewable polymer network. Comonomers are characterized,…
A sharp-tipped gold nanocone and the vertically aligned metallic tip of a near-field optical microscope together form a three-dimensional optical antenna with a highly controllable gap. Confocal measurements with different laser modes show the efficient axial excitation of the cones with a longitudinally polarized fie…
BACKGROUND: Recent series suggest that magnetic resonance imaging (MRI) scanning can be performed safely in select patients with pacemakers or implantable cardioverter-defibrillators (ICDs). Limited data have been reported on cardiac biomarker release following MRI scans in patients with pacemakers. The current study…
Abstract The syntheses of several dialkyl complexes based on rare‐earth metal were described. Three β‐diimine compounds with varying N‐aryl substituents (HL1=(2‐CH3O(C6H4))NC(CH3)CHC(CH3)NH(2‐CH3O(C6H4)), HL2 = (2,4,6‐(CH3)3 (C6H2))NC(CH3)CHC(CH3)NH(2,4,6‐(CH3)3(C6H2)), HL3 = PhNC(CH3)CH(CH3) NHPh) were treated w…
Abstract Nanomagnetite thermosets were obtained by thermally activated ring opening copolymerization of benzoxazine groups coated on the surface of the nanomagnetite with bare benzoxazine. For this purpose, carboxylic acid containing 1,3‐benzoxazine was synthesized and covalently bonded on magnetite nanoparticles by p…