Materials Literature
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The spray pyrolysis process was applied to prepare oxynitride phosphor , and the luminescence properties were investigated. The prepared particles had a green emission and good excitation characteristics in the region of 400–450 nm. The particles had an oxygen-rich phase . On the basis of the concentration quenching d…
BACKGROUND: Recently, we reported a unique approach to preserve the activity of some proteins in the presence of the denaturing agent, Sodium Dodecyl Sulfate (SDS). This was made possible by addition of the amphipathic solvent 2,4-Methyl-2-PentaneDiol (MPD), used as protecting but also as refolding agent for these pro…
The efficient implementation of metal nanoparticles in bioanalytical detection schemes, biological imaging and phototherapy requires these particles to be stable against aggregation and chemical desintegration. The functionalisation of these particles with specific (bio)molecular units is a further necessity. These re…
The mathematical framework required to account for a triple-phase boundary (TPB) and the accompanying surface transport was added to a two-dimensional numerical model of a mixed conducting thin film by considering appropriate kinetic rate and mass-transport expressions. Approximate parameters were chosen so that the m…
Abstract—We present a generally symmetrical circuit model to describe all kinds of metamaterials with effective permittivity and permeability. The model is composed of periodic structures whose unit cell is a general T-type circuit. Using the effective medium theory, we derive analytical formulations for the effective…
Multistep dehydriding reactions of magnesium borohydride Mg(BH4)2 were studied by Differential Scanning Calorimetry (DSC) measurements. The values of the enthalpy changes of the reactions from the measurements are in good agreement with those from first-principles calculations. Kinetically restricted dehydriding react…
Ultrafine fibers with diameters ranging from 50 to 300 nm were prepared from DNA/single-walled carbon nanotubes (SWNTs)/poly(ethylene oxide) blended dispersion. Well-defined electrospun fibers were obtained by good control of key dispersion properties related to electrospinning, such as ionic conductivity, surface ten…
The reaction of diamines or triamines with epoxidized oils leads to different reactions of intra/intermolecular cross-linking and the disruption of the ester linkage. However, by controlling the reaction conditions of temperature, stoichiometry and catalyst, production of oxirane rings without cross-linking and/or dis…
A facile synthetic route to synthesize the nanocrystalline zirconia particles via preparing polyzirconoxane with zirconium tetraalkoxide is reported, and the luminescent properties of the so-obtained nanophosphors are systematically investigated in this paper. The bluish-white photoluminescence and phosphorescence ori…
Quaternary (PZT) films were deposited at by a combination of liquid-injection atomic layer deposition (ALD) of binary PbO, , and thin films. In preliminary work, binary films were deposited at by ALD. Two solutions of and dissolved in ethylcyclohexane (ECH) were prepared, and it was found that the solution provides a…
By using hydrogen microprint technique (HMPT) , effect of microstructure on hydrogen permeation behavior in 7075 and 7475 aluminum alloys exposed to gaseous hydrogen has been investigated. The important findings are as follows. The amount of permeated hydrogen is strongly dependent on crystalline structure, temper and…
The design and performance of a new high-pressure and high-temperature cell for measurement of x-ray absorption fine structure (XAFS) spectra of solid catalysts working in a flowing liquid are presented. The cell has flat, high-purity sintered cubic boron nitride (c-BN) windows which can tolerate high temperature (900…
We present experimental data that demonstrate the potential of synthetic crown ether modified peptide nanostructures to act as selective and efficient chemotherapeutic agents that operate by attacking and destroying cell membranes.
High birefringence (Δn>0.4) nematic liquid crystals are particularly attractive for infrared applications because they enable a thinner cell gap to be used for achieving a fast response time. In this experiment, we evaluate the mesomorphic and physical properties of several fluorinated NCS terphenyl compounds. These c…
The general rule that in Ni(II) d(8) chemistry, tetrahedral (or nearly tetrahedral) complexes have temperature dependent magnetic moments which are usually larger than the spin-only value whilst square planar complexes are diamagnetic is broken for certain Ni[P((t)Bu)(2)(O)NR](2) complexes. These have planar coordinat…
Fabrication of Mg1-XZnXFe2O4 (where x = 0.2, 0.3, 0.4 and 0.5) samples using a conventional technique is reported. Oxides of magnesium, zinc and iron with purity of about 99.99% were mixed with distilled water in a milling machine for 12 hours. They were then filtered and presintered at 1250°C and sintered at 1350°C f…
A series of well-defined smectic side chain liquid-crystalline (LC) block copolymers with a low glass transition (Tg) siloxane block has been synthesized via anionic polymerization; these systems consist of a glassy polystyrene block and a unique low glass transition temperature LC block based on poly(vinylmethylsilox…
This paper deals with the rheological characterization of agar and foaming surfactant‐containing suspensions for obtaining stoichiometric cordierite samples with tailored open macroporosity and their characterization through density and microstructural studies. The influence of the processing parameters solid loading…
Synthetic and structural studies of Cr horseshoes are reported which show that these compounds demonstrate a rich supramolecular chemistry through H-bonding interactions, and can act as ligands for metal clusters.
Thermosensitive liposomes (TSL) with encapsulated proton (1H) magnetic resonance (MR) contrast agents have been proposed for noninvasive online temperature monitoring during tumor treatment using chemotherapy combined with hyperthermia (HT). The technique exploits the fact that water exchange between the TSL interior…