Materials Literature
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A very popular ab initio scheme to calculate electronic properties in solids is the use of hybrid functionals in density functional theory (DFT) that mixes a portion of the Fock exchange with DFT functionals. In spite of its success, a major problem still remains, related to the use of one single mixing parameter for…
Graphene-based assemblies are gaining attention as a viable alternate to boost the efficiency of various catalytic and storage reactions in energy conversion applications. The use of reduced graphene oxide has already proved useful in collecting and transporting charge in photoelectrochemical solar cells, photocatalys…
Abstract In this paper experimental results obtained by both 75As NQR and EPR spectroscopy are presented for the three-component system As-Sb-Se. The 75As NQR spectra of glasses of structures (As2Se3)0.78 (Sb2Se3)0.22, (As2Se3)0.75 (Sb2Se3)0.25, (As2Se3)0.5 (Sb2Se3)0.5 have broad lines with two Sb-NQR lines (correspon…
Abstract Hexagonal titanium silicon carbide (Ti 3 SiC 2 ) crystals were prepared by vacuum sintering of Ti, Si, and C powders at 1300 °C. The microstructure and grain deformations of Ti 3 SiC 2 were examined by scanning electron microscopy and transmission electron microscopy. The tribological properties of hexagonal…
Mehrfach nützlich: YbIII-HPDO3A wurde für die Entwicklung einer Magnetresonanz-Bildgebungsmethode genutzt, die simultan und unabhängig von der Konzentration des Komplexes auf pH-Wert und Temperatur anspricht (siehe Graph). Dieses Kontrastmittel sollte sich für den klinischen Einsatz eignen, da es die gleichen Stabilit…
PURPOSE: Standard DIN EN 61 331-1 for attenuation measurements in the narrow and broad beam as well as DIN 6857-1 for the determination of shielding properties in the inverse broad-beam geometry are available for testing the attenuation of protection clothing. The attenuation measurements in the narrow beam don't cons…
This paper reports the fabrication methodology and characterization results for an electrically activated silver-polymer-based antibacterial surface with primary applications in preventing indirect contact transmission of infections. The surface consists of a micro-scale grating pattern of alternate silver electrodes…
To clarify the effect of Alumina (Al2O3) particles on the crystallization of high density polyethylene (HDPE), HDPE and Al2O3/HDPE composite using compression molding in the amount of Alumina 10 wt% was prepared. The non-isothermal crystallization of Al2O3/HDPE composite and neat HDPE have been studied by Differential…
Abstract A new 72‐kV rated low‐pressure dry‐air insulated switchgear applying electromagnetic actuation and a function that supports CBM has been developed. First, the dielectric characteristics in dry air under lightning impulse application were investigated for bare and insulator‐covered electrodes. The dependence o…
We report on the characterization and detection of single metallic nanoparticles using a combination of correlation spectroscopy and surface-enhanced resonance Raman spectroscopy (SERRS). Minimizing the number of independent characterization steps is critical to efficiently perform such an analysis. In this article, w…
So werden selbst Minidiamanten wertvoll: Nanodiamanten (NDs) wurden durch Ringöffnungspolymerisation mit hyperverzweigtem Polyglycerol (PG) kovalent funktionalisiert, um ihre Eignung für biomedizinische Anwendungen zu verbessern (siehe Schema). Die PG tragenden NDs waren nicht nur in reinem Wasser hoch löslich (>20 mg…
Mg2Ni-type Mg2Ni1−xCox (x = 0, 0.1, 0.2, 0.3, 0.4) alloys were fabricated by melt spinning technique. The structures of the as-spun alloys were characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM). The hydrogen absorption and desorption kinetics of the alloys were measured by an automati…
A solid solution of 6H-type BaTi 1- y Co y O 3-δ samples where 0.1 ≤ y ≤ 0.4 and δ ≤ 0.05 has been prepared in air and characterized by a combination of X-ray, neutron, and electron diffraction, X-ray absorption spectroscopy, hydrogen-reduction thermogravimetric analysis, high resolution electron microscopy, magnetic…
In this paper a new approach to cross-link two individual multi-walled carbon nanotubes (MWCNTs) by a nucleophilic substitution of brominated MWCNTs using polyethylene glycol anion was introduced. The functionalized MWCNTs were characterized using thermogravimetric analysis (TGA), energy-dispersive X-ray (EDX) spectro…
Absolute stereochemistry of oils and viscous liquids can be difficult to determine. Co-crystallization involves generating a crystalline material consisting of more than one neutral compound. The combination of co-crystallization with both X-ray diffraction and chiral HPLC was particularly powerful in overcoming these…
Magnetism in the orthorhombic metal ${\mathrm{CaFe}}_{4}{\mathrm{As}}_{3}$ was examined through neutron diffraction for powder and single crystalline samples. Incommensurate [${\mathbit{q}}_{m}\ensuremath{\approx}(0.37--0.39)\ifmmode\times\else\texttimes\fi{}{\mathbit{b}}^{*}$] and predominantly longitudinally ($\ensu…
Abstract Hydroxycamptothecin (HCPT)‐loaded PLA nanoparticles were prepared by a one‐step method using the direct dialysis technique, and were examined for particle characteristics, in vitro drug release, and cytotoxicity, as well as antitumor efficiency. Three main influential factors based on the results of a single‐…
The ability to control metal patterns at the micro- and nanoscales, along with the development of a simple fabrication method, is important to many applications in the fields of materials science, biological sensing, electronics, and photonics. Herein, a simple approach to fabricating gold micropatterns with controlle…
Abstract Organic‐organic heteroepitaxy can represent the winning technique for growing crystalline and oriented heterostructures of organic semiconductors. However, a sound physical interpretation of mechanisms that control epitaxy is still missing for these low symmetry molecular systems, generally not obeying the us…
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