Materials Literature
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Silk fibroin sol-gel transitions were studied by monitoring the process under various physicochemical conditions with optical spectroscopy at 550 nm. The secondary structural change of the fibroin from a disordered state in solution to a beta-sheet-rich conformation in the gel state was assessed by FTIR and CD over a…
High-resolution thermal expansion measurements of single-crystalline ${\mathrm{Na}}_{0.80}\mathrm{Co}{\mathrm{O}}_{2}$ reveal continuous behavior of the paramagnetic-antiferromagnetic phase transition at ${T}_{M}=21.7(1)\phantom{\rule{0.3em}{0ex}}\mathrm{K}$ with critical exponent $\ensuremath{\alpha}=0.18(2)$. The th…
The reaction of V(III)(THF)3Cl3 with NEt(4)CN in acetonitrile (MeCN) forms (NEt4)3[V(III)(CN)6].4MeCN (1), which after characterization was used as a molecular building block toward the synthesis of Prussian blue structured magnets. The reaction of 1 with [Cr(II)(NCMe)4](BF4)2 forms Cr(II)(0.5)Cr(III)[V(II)(CN)6].zMeC…
A coordination polymer [Cp(O)2Mo-O-Bi(o-tolyl)2]n, II, containing Mo-O-Bi and Mo=O...Bi moieties was investigated with respect to its behavior in contact with OH- and Cp2MoH2 and as potential single source precursor in the polyol method. It turned out that hydroxide as a base breaks up the polymer to yield CpMoO3- and…
Phosphosilicate glass films produced by subatmospheric pressure chemical vapor deposition with different phosphorus concentrations have been investigated by ultraviolet Raman spectroscopy and electron paramagnetic resonance (EPR) spectroscopy. The behavior and the attribution of the main Raman band at $1326(2)\phantom…
An underlying Arrhenius temperature dependence of the diffusion constant can be extracted from the fragile, super-Arrhenius diffusion of a binary Lennard-Jones mixture. The Arrhenius form is found by considering time intervals and temperatures where diffusive motion is present but the system is nonergodic, with averag…
A relaxor ferroelectrics, $\mathrm{Ba}{\mathrm{Ti}}_{0.65}{\mathrm{Zr}}_{0.35}{\mathrm{O}}_{3}$ (BTZ35), which was free from lead, was synthesized and the physicothermal properties were measured. The heat capacity was measured using a homemade adiabatic calorimeter at temperatures from $13\phantom{\rule{0.3em}{0ex}}\m…
CcmG, also designated DsbE, functions as a periplasmic protein thiol:disulfide oxidoreductase and is required for cytochrome c maturation. Here we report the crystal structures of Escherichia coli CcmG and its two mutants, P144A and the N-terminal fifty seven-residue deletion mutant, and two additional deletion mutant…
The growth direction and morphology of one-dimensional ZnO nanostructures grown by metal–organic chemical vapour deposition (MOCVD) were modulated by changing the growth temperature of previously deposited ZnO buffer layers that were used as a template. The ZnO nanorods grown on the low-temperature deposited buffer la…
The dissipative particle dynamics (DPD) method was used to simulate the flow in a system comprised of a fluid occupying the space between two cylinders rotating with equal angular velocities. The fluid, initially at rest, ultimately reaches a steady, linear velocity distribution (a rigid-body rotation). Since the indu…
The aim of this study was to extract collagen from fish skins and investigate the physical properties of the biodegradable films formed from the extracted fish collagen. Extraction of collagen using hydrogen peroxide or enzymatic methods proved to be unsuccessful. A white collagen substance was successfully extracted…
Results of a theoretical and experimental photoelectron spectroscopy (PES) study of the size evolution of electronic properties of small ${\mathrm{Mn}}_{n}^{\ensuremath{-}}$ clusters are presented. The agreement between the computed and measured data verifies the validity of the theoretical treatment. The theoretical…
In the framework of the thermodynamic perturbation theory for fluids we study how the phase diagram of an isotropic repulsive soft-core attractive potential, where a liquid-liquid phase transition exists in addition to the standard gas-liquid phase transition, changes by varying the parameters of the potential. We sho…
The synthesis and the X-ray structure of two complexes exhibiting a linear chain of four nickel atoms is reported, following Ni4(mu4-phdpda)4 (1), which had been characterized previously. [Ni4(mu4-Tsdpda)4(H2O)2], where H2Tsdpda is N-(p-toluenesulfonyl)dipyridyldiamine (2), is axially coordinated to two water molecule…
The redox reactions of DMcT at PEDOT-modified glassy carbon electrodes (GCEs) in acetonitrile (AN) have been investigated via cyclic voltammetry (CV) and the electrochemical quartz crystal microbalance (EQCM) in order to elucidate the redox reaction mechanism. A redox couple at -0.29 V versus Ag/Ag+ was assigned to th…
The present study aimed at exploring the use of amine-containing core-shell nanoparticles as potential drug carriers for intracellular delivery. Stable nanoparticles (100-200 nm in diameter) that consisted of poly(methyl methacrylate) (PMMA) cores with hydrophilic poly(ethyleneimine) (PEI) shells were synthesized and…
A polymer analogous synthesis involving the reductive amination of phosphorylcholine (PC)-glyceraldehyde with primary amines of deacetylated chitosan (M(w) approximately 57000 g mol(-1)) was used to prepare phosphorylcholine-substituted chitosans (PC-CH) with a degree of substitution (DS) ranging from approximately 11…
The ultrastructures of novel threadlike structures (NTSs) and corpuscles on the surfaces of internal organs of rats were investigated using electron microscopy. The samples were studied in situ by using a stereomicroscope and were taken for further morphological analysis. Scanning electron microscope (SEM) images reve…
Because of its widespread availability, natural gas is the most important fuel for early application of stationary fuel cells, and furthermore, methane containing biogases are one of the most promising renewable energy alternatives; thus, it is very important to be able to efficiently utilize methane in fuel cells. Ty…
A novel polyaniline nanofibre supported platinum (Pt) nanoelectrocatalyst is developed for direct methanol fuel cells (DMFCs). Polyaniline nanofibres (PaniNFs) with a 60 nm diameter are synthesized by a scalable interfacial polymerization without the use of a template or functional dopant. PaniNF supported Pt electroc…