Materials Literature
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In this paper, the results of research on a sealing rubber mixture based on the NBR-18 nitrile butadiene rubber modified by thermoexpanded graphite have been presented. It has been established that, in the case of small levels of filling in an elastomeric matrix, the introduction of thermoexpanded graphite leads to an…
Three kinds of Cu-Al alloys and a pure Cu sample with different stacking fault energies (SFEs) are deformed using room temperature rolling (RR) and high pressure torsion (HPT), respectively. The microstructure is analysed by means of transaction electron microscopy and X-ray diffraction. It is found that HPT is more f…
The main challenge in the fabrication of carbon nanotube‐ (CNT‐) based composite materials is the optimization of the sonication time in order to obtain homogenous and uniform dispersion of CNTs. Past studies mostly relied on postprocessing characterization techniques to address this issue. In the present, however, in…
The carbon-cage structure of the lowest-lying Pr@C 72 and its dichlorophenyl-functionalized derivative is C 2 (10612)-C 72 .
This paper is devoted to the characterization of polymer-filler interfaces by thermoporosimetry using water as a probe. Composites of EVA filled with aluminium hydroxide with high filler content for the required fire retardant properties have been studied. After water sorption at 90 °C, the composites have been analyz…
A general and effective strategy is developed to orient conjugated polymers, such as polydiacetylene, using aligned carbon nanotubes.
Photonic crystals (PCs) are a revolutionary science that has a great impact on the field of photonics. In purpose of extend the applications of PCs, we introduce a new photonic structure which is composed of alternating lamellae of MTMs and Dielectric. The electromagnetic waves propagating through photonic crystal str…
The purpose of this study is to evaluate the photostability of nifedipine (NIF) in solid monolaurin (ML)-based matrix and the micellar solutions thereof. NIF loaded-ML matrices at concentrations of 1:1, 1:4 and 1:9 w/w were prepared using a fusion-high shear homogenization method and characterized using differential s…
Synthesis and characterization of highly luminescent near-infrared CuGa x In 1−x S y Se 2−y nanocrystals obtained from organometallic single-source precursors.
Abstract Morphospace occupation through time provides a view of diversification distinct from the more familiar taxonomic tabulations. However, this view is subject to the same geological biases long recognized in studies of taxonomic diversification, where techniques for correcting secular bias in sampling have becom…
The in situ treatment of silica nanoparticles by trimethoxy-(1H,1H,2H,2H-perfluoro-1-octyl)silane results in the formation of materials possessing hydrophobic and superhydrophobic properties. The stability of the final sol, average particle size, degree of polydispersity of particles, and limiting wetting angle substa…
A Zn polar ZnMgO/MgO/ZnO structure with low Mg composition Zn1−xMgxO layer (x = 0.05) grown on a‐plane (11–20) sapphire by radical‐source laser molecular beam epitaxy was reported. The insertion of a thin (1 nm) MgO layer between ZnMgO and ZnO layers in the ZnMgO/ZnO 2DEG structures results in an increase of 2DEG shee…
LNTs are unique 3D structures made only of safe and abundant biomaterials by self-assembly. The current bottleneck for developing applications using LNTs is the lack of an easy technique to pattern them on substrates. We report a method to free-draw single lipid nanotube (LNT) patterns in any shape on surfaces with 1,…
The kinetics, mechanism and polymer microstructure studies of ring-opening polymerization (ROP) of lactides (LA) by Zn(II) and Cu(II) complexes of (pyrazolylmethyl)pyridine ligands, 2-(3,5-dimethylpyrazol-1-ylmethyl)pyridine (L1) and 2-(3,5-diphenylpyrazol-1-ylmethyl)pyridine (L2) is described. The complexes [Zn(Ac)2(…
This study elucidates the intricate interplay between hydrophobic and electrostatic interactions in aqueous solutions of a responsive charged triblock copolymer.
The effect of piezoelectric polarization on GaN-based light emitting diodes (LEDs) with different kinds of prestrain layers between the multiple quantum wells (MQWs) and n-GaN layer is studied and demonstrated. Compared with the conventional LED, more than 10% enhancement in the output power of the LED with prestrain…
The hydrothermal synthesis of a nanosized cobalt doped aluminum phosphate CoAPO-5 (CoAPO-5-N) in a water-surfactant-organic solvent mixture (emulsion method) is reported, along with its physico-chemical characterization and comparison with a sample obtained by conventional synthesis (CoAPO-5-C). Both XRD (X-ray Diffra…
The stress corrosion cracking (SCC) of type 304 stainless steel during a creviced bent beam (CBB) test in a high-temperature, high-pressure water environment was monitored by an optical fiber acoustic emission (AE) sensor. By examining the number and type of cracks formed by different durations of CBB testing an SCC i…
Magnesium-calcium alloy-based composites reinforced with vapor grown carbon fibers (VGCFs) are supposed to possess satisfactory high-temperature applications. However, poor wettability of magnesium with carbon fiber is a technical problem encountered in fabrication of the composites. In order to cover the wetting prob…
High viscosity is important for normal intracellular homeostasis. In this study, nanoporous drug delivery systems (DDSs), including mesoporous silica nanoparticles (MSNs) and layer by layer (LBL) microcapsules, with a viscosity enhanced release (VER) effect were designed and prepared, and their drug release behaviors…