Materials Literature
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We report that a series of lanthanide-based bulk metallic glasses show a pressure-induced polyamorphic phase transition observed by in situ angle-dispersive x-ray diffraction under high pressures. The transition started from a low-density state at lower pressures, and went through continuous densification ending with…
Abstract Olefin hydroformylation is a widely used process, both on large scales and in fine chemistry, with catalyst reuse still being one of the main objectives. In recent years, developments in the immobilization of catalysts on solid supports that enable their recovery and reuse when applied in catalytic hydroformy…
We present the employment of the Keggin ion 12-phosphotungstic acid as a UV-switchable reducing agent for the decoration of Au, Ag, Pt, and Cu nanoparticles onto the surface of TiO(2) nanotubes synthesized by electrochemical anodization. The synthesized composites were studied using SEM, GADDS XRD, and EDX, and the ph…
Understanding and modeling of coal pyrolysis assume particular importance, since it is the first step of combustion and gasification processes. The complex reactions occurring during pyrolysis lead to difficulties in the process modeling. The aim of this work is to find a global kinetic model that well represents the…
Oil-in-water nanoemulsions were produced in the system water/Span 80-Tween 80/paraffin oil via the phase inversion composition (PIC) method at elevated temperature. With the increase of preparation temperature from 20 to 70 °C, we found that the emulsion droplet diameter decreases from 10.3 μm to 51 nm, proving the fo…
Cationic π-conjugated polymers form an interchain helically π-stacked assembly with anionic chiral compounds that is stabilized by both electrostatic and π-π interactions to hierarchically self-organize into a spherulite with a circularly polarized blue luminescence. To the best of our knowledge, this is the first exa…
Biomimetic, self-assembled calcium carbonate (CaCO(3) ) concentric microgrooves with groove widths of 5.0 and 10 μm were fabricated through simply controlling incubation temperature. Mouse pre-osteoblastic MC3T3-E1 cells were cultured on flat and microgrooved substrates of CaCO(3) and their adhesion, spreading, prolif…
In this study, we propose the fabrication and characterization of nanoparticle based multilayer photonic crystals infiltrated with a nematic liquid crystal. We show a very simple infiltration of the liquid crystal in the porous structure, controlled by monitoring the photonic band gap during the infiltration process.…
Highly soluble poly[quinacridone- alt -benzothiadiazole] (PQCDTB) has been synthesized through the Suzuki coupling reaction by introducing planar quinacridone and highly absorbing benzothiadiazole. The PQCDTB dissolved in general organic solvents, and the M n was 49.8 kg/mol. The optical band gap energy was 1.92 eV, w…
Poly(arylene ether sulfone)-based ionomers with sulfonate groups of varying acidity (perfluoroalkyl sulfonate, aryl sulfonate and alkyl sulfonate) were synthesized via borylation of aromatic C–H bonds and Suzuki coupling with sulfonated phenyl bromides. Properties of the ionomers, such as thermal stability, water upta…
Surface treatment by decyl-phosphonic acid (DPA) reduces the recombination and increases the open circuit voltage and the fill factor of the inorganic–organic Sb2S3 hetrojunction solar cell. It is revealed that the DPA attaches to both surfaces, the uncovered TiO2 surface and the Sb2S3 surface. This cell produces a po…
Three porous (3,24)-connected rht-type metal-organic frameworks (MOFs), [Cu(3)L(H(2)O)(3)]·xsolvents (H(6)L(OH) = 4,4',4"-(hydroxysilanetriyl)tris(triphenyl-3,5-dicarboxylic acid), SDU-6; H(6)L(Me) = 4,4',4"-(methylsilanetriyl)tris(triphenyl-3,5-dicarboxylic acid), SDU-7; H(6)L(iBu) = 4,4',4"-(isobutylsilanetriyl)tris…
Combined in situ small- and wide-angle X-ray scattering (SAXS/WAXS) studies were performed in a new laboratory setup to investigate the dynamical properties of a ruthenium/spinel (Ru/MgAl 2 O 4 ) catalyst, w (Ru) = 4 wt %, during the reduction and subsequent dry methane reforming. The Ru particles in the fresh catalys…
Self-assembled monolayers have attracted much attention recently due to their ease of formation and affinity to metal substrates. This report reviews research conducted over the last decade into the science and applications of self-assembled monolayers on the metallic surfaces gold and graphene. The focus is on the co…
Although heat-shock protein 70 (HSP70), an evolutionarily highly conserved molecular chaperone, is known to be post-translationally modified in various ways such as phosphorylation, ubiquitination and glycosylation, physiological significance of lysine methylation has never been elucidated. Here we identify dimethylat…
Abstract Carbon nanotube (CNT) based continuous fiber, a CNT assembly that could potentially retain the superb properties of individual CNTs on a macroscopic scale, belongs to a fascinating new class of electronic materials with potential applications in electronics, sensing, and conducting wires. Here, the fabricatio…
We report on the fabrication of dynamic covalent shell cross-linked (SCL) micelles of amphiphilic diblock copolymers functionalized with aldehyde moieties in the hydrophilic block by utilizing difunctional crosslinkers cleavable in response to pH and thiols. Well-defined amphiphilic diblock copolymer, PCL-b-P(OEGMA-co…
BACE1 is the β-secretase enzyme that initiates production of the β-amyloid peptide involved in Alzheimer disease. However, little is known about the functions of BACE1. BACE1-deficient mice exhibit mild but complex neurological phenotypes suggesting therapeutic BACE1 inhibition may not be completely free of mechanism-…
We report a novel depth dependence for the penetration of spin current into ultrathin ferromagnets. Ferromagnetic resonance measurements show that transverse spin current pumped into three structurally distinct ferromagnets is attenuated, on reflection, by an amount proportional to the ferromagnetic layer thickness, s…
We present an analysis of bulk and surface electronic structures of thallium-based ternary III-V-VI${}_{2}$ series of compounds TlMQ${}_{2}$, where $\mathrm{M}=\mathrm{Bi}$ or Sb and $\mathrm{Q}=\mathrm{S}$, Se, or Te, using the ab initio density functional theory framework. Based on parity analysis and (111) surface…