Materials Literature
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Tunable solvent systems couple homogeneous catalytic reactions to heterogeneous separations, thereby combining multiple unit operations into a single step and subsequently reducing waste generation and improving process economics. In addition, tunable solvents can require less energy than traditional separations, such…
Type VII collagen, the major structural component of the anchoring fibrils, was assayed in normal unaffected skin of patients with different forms of hereditary epidermolysis bullosa. Immunofluorescence staining with affinity-purified polyclonal antibodies to type VII collagen revealed a complete absence of staining i…
The properties of the nuclear isoscaling at finite temperature are investigated and the extent to which its parameter $\ensuremath{\alpha}$ holds information on the symmetry energy is examined. We show that, although finite temperature effects invalidate the analytical formulas that relate the isoscaling parameter $\e…
Pressure-induced physical and chemical transformations of sodium cyanide (NaCN) have been studied up to 50 GPa in diamond-anvil cells, using micro-Raman spectroscopy and angle-resolved synchrotron x-ray diffraction. We observe three phase transitions in this pressure range: NaCN-IIA (orthorhombic, Immm), to NaCN-IIB (…
Six mixtures, containing 10, 20 and 30% w/w ibuprofen and isomalt, were compacted by a traditional or ultrasound-assisted machine and analysed by means of thermal (DSC and TGA) and micro-spectrometry (Raman and FT-IR) techniques. Ultrasound discharge causes melting of ibuprofen powder, transforming into a paste that c…
We use magnetotransport measurements to study the influence of the domain structure on the superconducting transition temperature ${T}_{c}$ in ferromagnetic $(F)$/superconducting $(S)$ bilayers and $F/S/F$ trilayers based on Nb and the weak ferromagnet ${\text{Cu}}_{43}{\text{Ni}}_{57}$. By comparing the anisotropic m…
A new method based on the boundary element method (BEM) is developed to calculate high quality factors of whispering-gallery modes by studying the Poynting vector. The method has high calculation accuracy, which exceeds traditional methods with the same PC computation resource. To demonstrate the feasibility of the pr…
The growth of GaAs nanowires by the gallium-assisted method with molecular beam epitaxy (MBE) is presented in this review article. The structure of the grown nanowires was investigated by means of scanning and transmission electron microscopy as well as Raman spectroscopy. Their optical properties were revealed by per…
Pre-edge spectral features below the main X-ray absorption K-edge of transition metals show a pronounced chemical sensitivity and are promising sources of structural information. Nevertheless, the use of pre-edge analysis in applied research is limited because of the lack of definite theoretical peak-assignments. The…
We report detailed $^{51}\text{V}$ NMR spectra in a single crystal of ${\text{MnV}}_{2}{\text{O}}_{4}$. The vanadium spectrum reveals two peaks in the orbitally ordered state, which arise from different internal hyperfine fields at two different V sublattices. These internal fields evolve smoothly with externally appl…
Mixtures of 47-Al and 53-Ti powders (atomic %) have been consolidated using back pressure equal-channel angular pressing starting with both raw and ball-milled powders. In situ synchrotron high-energy X-ray diffraction studies are presented with continuous Rietveld analysis obtained upon a heating ramp from 300 K to 1…
Abstract Point defects are key factor for determination of properties and characteristics of structural materials. The properties of defects in alpha Fe containing helium atoms have been investigated by model positron lifetime simulations. The electron and positron wave functions have been obtained in the local densit…
Ammonia is a good model system for the study of co-adsorption interactions, including indirect effects such as charge and strain-induced local effects on adsorption sites, and direct interactions such as hydrogen bonding. On the Si(001) surface, it adsorbs molecularly, via a dative bond from the N atom to the down ato…
To investigate possible molecular interactions between xyloglucans (XGs) and cellulose in plant cell walls, a model composite was produced using cellulose from the bacterium Gluconacetobacter xylinus and XG from the walls of a tobacco cell-suspension culture that had been incubated with (13)C-labeled glucose. Solid-st…
ZnS is a versatile wide-gap semiconductor that shows remarkable chemical stability against oxidation and hydrolysis. These properties are retained when the particle size steps down to 10 nm and below, and thus ZnS nanoparticles are interesting entities for optical and catalytic functions, where they might be exposed t…
We investigate the critical nucleus and equilibrium morphologies during precipitation of a second-phase particle in a solid. We show that a combination of diffuse-interface description and a constrained string method is able to predict both the critical nucleus and equilibrium precipitate morphologies simultaneously w…
A new hetero-bifunctional ligand designed to form supramolecular structures with a combination of covalent and noncovalent forces has been prepared. The ligand, (1,8-naphthalimide)CH 2 C 6 H 4 CH 2 OCH 2 C(pz) 3 ( L tris, pz = pyrazolyl ring), contains both a tris(pyrazolyl)methane coordination unit and a 1,8-naphthal…
8,8'-(1,4,10,13-Tetrathia-7,16-diazacyclooctadecane-7,16-diyl)-bis(methylene)diquinolin-7-ol (TTBQ) was synthesized and proved to selectively recognize Hg(2+), forming a Hg(2+)/TTBQ complex with an association constant (K(a)) as large as approximately 1.3 x 10(4) +/- 520 M(-1) in aqueous solution. Single crystals of T…
Bimolecular charge recombination is examined in a polymer blend photovoltaic material using time-resolved vibrational spectroscopy on the 100 fs to millisecond time scales. The carbonyl (C═O) stretch of the functionalized fullerene, PCBM, is probed as a local vibrational reporter of electron transfer and subsequent bi…
The achiral coordination polymer [Mn(II)(rac-pnH)(H(2)O)Cr(III)(CN)(6)].H(2)O, (rac-pn = racemic 1,2-diaminopropane), 1.2H(2)O, has been prepared, and its crystal structures, optical and magnetic properties have been studied before and after dehydration followed by rehydration. The in situ X-ray diffraction, performed…