Materials Literature
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In this study, a series of π-conjugated block copolymers of regioregular poly(3-hexyl thiophene)-b-poly(2-vinyl pyridine) (P3HT–P2VP) was synthesized and their self-assembly behavior and the detailed thermodynamic phase diagram were explored. By a combination of TEM, SAXS, WAXS, and UV-VIS measurements, it was found t…
The reduction of a series of crystalline mesoporous metal oxides, CeO2, Co3O4, Cr2O3, CuO, β-MnO2, Mn3O4, and NiO, was investigated using hydrogen temperature-programmed reduction (H2-TPR). CeO2 and Cr2O3 could not be reduced. Mesoporous Mn3O4 and NiO are reduced at almost the same temperature as their bulk counterpar…
Different amounts of tungsten oxide were introduced to zirconia to form WOx–ZrO2 solid solutions by a coprecipitation method, followed by impregnation with copper nitrate. The received catalysts were characterized by X-ray diffraction, Brunauer–Emmett–Teller surface area, X-ray photoelectron spectroscopy, Raman spectr…
Self-assembling short peptides can offer an opportunity to make useful nano-/microstructures that find potential application in drug delivery. We report here the formation of multivesicular structures from self-assembling water-soluble synthetic amphiphilic dipeptides containing a glutamic acid residue at the C-termin…
InSb-based semiconductors have not been regarded as a promising thermoelectric candidates before due to their high thermal conductivity. In this paper, Ga substitution and nanoinclusions poor in Ga were introduced to serve as phonon scattering centres. The nanoinclusions, possessing a heterogeneous isomorphic crystal…
The confinement of poly(ethylene oxide) in graphite oxide is studied using a combination of diffraction, calorimetric, and spectroscopic methods. Polymer intercalation into subnanometer graphite oxide layers leads to the complete suppression of crystallization phenomena and dielectric α-relaxation processes, as well a…
A novel molecular approach to the synthesis of polycrystalline Cu-doped ZnO rod-like nanostructures with variable concentrations of introduced copper ions in ZnO host matrix is presented. Spectroscopic (PLS, variable temperature XRD, XPS, ELNES, HERFD) and microscopic (HRTEM) analysis methods reveal the +II oxidation…
Gamma phase indium selenide (γ-In2Se3) hierarchical flowerlike architectures have been facilely synthesized for the first time via the reaction of indium chloride and selenium powders with the assistance of ascorbic acid at 220 °C for 20 h in an ethanol-solvothermal system, in which ascorbic acid acts as both reducing…
Mesoporous aluminas (MAs) with tailored adsorption, framework, and surface basic–acidic properties were prepared using different structure-directing agents (SDAs) such as Brij®78, Pluronic F108, poly(ethylene oxide)–poly(butylene oxide)–poly(ethylene oxide) B50-6600 and Vorasurf™ 504 block copolymers, which so far wer…
Solid oxide fuel cell (SOFC)/ gas turbine (GT) hybrid systems possess the capability to nearly double the efficiency of standard coal-fired power plants which are currently being used for large scale power production. For the purposes of investigating and developing this technology, a SOFC/GT hybrid test facility was…
We demonstrate the synthesis and characteristics of MRI-active Gd2O3 core/SiO2 shell/poly(2-methacryloyloxyethyl phosphorylcholine) corona composite nanoparticles (Gd2O3@SiO2@PMPC NPs). The prepared NPs have a number of attractive features in cancer diagnosis and neutron capture therapy (NCT): biocompatibility, colloi…
The Layer-by-Layer (LbL) self-assembly of polyelectrolyte multilayers (PEMs) formed by poly(acrylic acid) (PAA) and chitosan (CHI) of two different percentages of acetylation (AC) has been studied by dissipative quartz crystal microbalance (D-QCM) and ellipsometry. The results point out that the non-linear growth (exp…
Diblock copolymers of poly(ethylene glycol) (PEG) and biodegradable 2-(diisopropylamino)ethanol grafted poly(L-aspartic acid) (PAsp(DIP)) were synthesized and evaluated as a MRI-visible and pH-sensitive drug delivery system. The copolymers can self-assemble into stable vesicles in aqueous solutions at neutral pH, rese…
With the aim of creating superhydrophobic coatings with longtime service life, to avoid the permanent destroying under practical conditions, a simple technique for fabrication of superhydrophobic coatings with regenerability was developed using a facile and convenient method of spraying. The as-prepared poly(furfuryl…
Skin is an important barrier protecting the organism against external environmental factors. Determination of its mechanical characteristics as regards its structure has significant scientific and application value. In this work, uniaxial tensile tests were conducted to determine the basic mechanical parameters of ski…
In this study we show for the first time the green biosynthesis of silver nanoparticles with the help of the mycorrhizal mushroom Tricholoma crassum(Berk.) Sacc. This is a simple and reproducible method of silver nanoparticle production using mycelial mats which results in monodispersed nanoparticles of high concentra…
Contact lines arise as the boundaries of free boundaries in fluids.This problem is interesting and important, not only because it arises in many applications, but also because of the distinct mathematical and physical features it has, such as singularities, hysteresis, instabilities, competing scaling regimes, etc.For…
Different types of curing systems play important roles in the thermal degradation of natural rubber vulcanisates. In this study, natural rubber vulcanisates were cured with conventional (CV), efficient (EV) and Dicumyl Peroxide (DCP) curing systems at 160 o C using a laboratory-size two roll mill. The tensile, tear an…
The production and management of crops uses plastics for many applications (e.g., low tunnels, high tunnels, greenhouses, mulching, silage bags, hay bales, pheromone traps, coatings of fertilizers or pesticides or hormones or seeds, and nursery pots and containers for growing transplants). All these applications have…
The self-assembly of rod–coil block copolymers (BCPs), i.e., BCPs containing rigid or semi-flexible blocks (rods), has been much less studied and understood than that of flexible (coil) BCPs. Both the conformational asymmetry between rod and coil blocks and the orientational interaction between anisotropic rods can ra…