Materials Literature
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Washcoating of alumina on cordierite monoliths has been studied with the objective of preparing monoliths with high loadings (>30 wt%). As the alumina loading increased, the competition between spreading and imbibition of the slurry in the monolith channels had a predominant influence on the loading that could be a…
Ferroelectric nanoparticle suspensions can enhance the properties of liquid crystals; increasing key parameters such as clearing point, birefringence and dielectric anisotropy. However, these suspensions are difficult to reliably prepare. The interaction between surfactant and ferroelectric particles plays a crucial r…
The influence of controlable parameters like the temperature on the trajectories of light in a nematic liquid crystal with topological defects is studied through a geometric model. The model incorporates phenomenological details as how the refractive indices depend on such parameters. The deflection of light by the to…
Select amides have been widely used to suspend nanoarchitectures in organic solvents. In order to determine factors enabling these suspensions, interactions of single-walled carbon nanotubes (SWCNTs) with representative amides 1 were examined—R(C═O)NMe 2, when R = H, Me, Et, i -Pr, t -Bu, Ph. 1 H NMR spectra gave evid…
Indium tin oxide (ITO) nanoparticles were synthesized by mineralization in the cavity of ring-shaped templates that were generated by the self-assembly of peptide-based biomimetic molecules. The ITO nanoparticles grew to an average diameter of 150 nm. This exclusive ITO nanoparticle growth was driven by the catalytic…
Abstract In vitro synthesis of polyhydroxyalkanoates (PHAs) on a hydrophobic support, i.e. highly oriented pyrolytic graphite (HOPG), was performed using class II PHA synthase (PhaC1 Pp ) from Pseudomonas putida and class III PHA synthase (PhaEC Av ) from Allochromatium vinosum . Using PhaC1 Pp and 3‐hydroxyoctanoyl‐C…
A multilevel one-time programmable (OTP) oxide diode for cross-point memory is introduced. The oxide diode is composed of a thin-film p-CuO/n-InZnOx(IZO). By applying negative electrical pulses, the p-CuO/n-IZO diode exhibited multilevel resistance states, and such characteristics of the p-CuO/n-IZO diode could be uti…
Abstract BACKGROUND: Polyaniline–vanadium oxide hybrid materials have been much researched due to their potential applications in lithium batteries. Although many methods have been reported for the fabrication of conventional polyaniline–vanadium oxide hybrid materials by in situ oxidative polymerization/intercalation…
The slow dynamics of a single particle in multicomponent glass-forming systems including fragile and strong glasses is studied from a unified point of view. The simulation results on two different systems, bulk glass-forming Cu60Ti20Zr20 melt and network-forming SiO2 , melt are analyzed by the mean-field theory (MFT)…
We demonstrate the feasibility of modulating and improving the separation of photoinduced charge carriers of CdS−M nanoheterostructures through partial replacement of S with two group 16 elements of larger atomic size, Se and Te. With the incorporation of Se or Te into the CdS nanowires (NWs), the defect states of the…
Sulfobetaine-modified poly(ethylene terephthalate) (PET) systems were created by physically entrapping the zwitterionic species on the PET surface. The presence of the sulfobetiane molecules on these surfaces were verified by ATR-FTIR and SEM-EDAX analysis, while wettability of the films was investigated by water cont…
Abstract A kind of nanostructured Ce 0.9 Sm 0.1 O 1.95 is prepared by a hydrothermal method. It exhibits large Brunauer‐Emmett‐Teller area (>120 m 2 g –1 ), open mesoporous structure and nanocrystalline sheets. This material shows high activity for oxygen reduction. An area specific resistance below 0.6 Ω cm 2 at 6…
The color of gold: The tryptophan–gold cation was synthesized and its unique optical properties were studied experimentally and by ab initio calculations (see picture). The complex exhibits strong absorption in the visible region owing to charge-transfer excitations, which make gold complexes attractive for bioapplica…
We have found that epitaxial MgO(111) thin films grow under a wide range of deposition conditions (substrate temperatures of 400–800 °C, oxygen partial pressures of 10 -4 –10 0 Pa) on α-Al 2 O 3 (0001) substrates by pulsed laser deposition (PLD), despite the strongly divergent electrostatic potential of MgO(111). The…
Aqueous foams are often used under various flow regimes, and one of the biggest challenges is to create predictive models of their complex rheological properties. Previous theoretical and experimental studies have qualitatively characterized the wall slip of foams. We focus on this phenomenon in a 1D geometry, studyin…
At temperatures below 400 °C, irradiation often causes hardening and reduction of elongation as well as toughness degradation to a considerable degree. Data, however, indicate that these changes remain in manageable ranges for ITER-TBM application. Moreover, the saturation tendency of these changes with neutron dose s…
OBJECTIVE: To develop and characterize a clinically applicable, fast and efficient method for stem cell labeling with ferucarbotran and protamine for depiction with clinical MRI. METHODS: The hydrodynamic diameter, zeta potential and relaxivities of ferucarbotran and varying concentrations of protamine were measured.…
Collagen shields have been used as therapeutic contact lenses to promote corneal epithelial healing and to deliver hydrosoluble drugs. In albino rabbits, we studied the ocular pharmacokinetics of netilmicin, an aminoglycoside antibiotic, released by a 24-hour collagen shield immersed for 10 min in commercially availab…
Abstract Purpose – The purpose of this paper is to study to minimize the self‐corrosion rate of Type 57S aluminium containing (97.7 per cent Al, 2 per cent Mn and 0.03 per cent Mg) in 2 M NaOH solution containing 0.2 M zinc oxide and 700 ppm of polyaniline. Design/methodology/approach – The approach is used to measure…
A novel red‐emitting phosphor Ba 1.95 ZnSi 2 O 7 :Eu 0.05 3+ , B x 3+ was prepared by combustion synthesis and an efficient red emission under near‐ultraviolet (UV) was observed. The luminescence, crystallinity, and particle sizes were investigated using luminescence spectrometry, X‐ray diffractometry, and scanning el…