Materials Literature
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The elastic properties and Debye temperatures of xB2O3–70TeO2–(30–x)WO3, (0 ≤ x ≤ 30 mol%) glasses have been investigated using sound velocity measurements at 4 MHz. Ultrasonic and thermal parameters, combined with the results of IR spectroscopic analyses, were employed to explore the effect of B2O3 on the structure o…
Providing adequate vascularization is one of the main hurdles to the widespread clinical application of bone tissue engineering approaches. Due to their unique role in blood vessel formation, endothelial cells (EC) play a key role in the establishment of successful vascularization strategies. However, currently availa…
Abstract Density functional theory calculations have been performed on the electronic structure and the atomistic structure of yttrium aluminum garnet Y 3 Al 5 O 12 , YAG, and related crystals (yttrium aluminum perovskite YAlO 3 , yttria Y 2 O 3 , and corundum α‐Al 2 O 3 ). The quality of the computed data provides re…
Three-dimensional cubic (Im3m) periodic mesoporous organosilicas with aromatic benzene- and thiophene-bridging groups were synthesized using 1,4-bis(triethoxysilyl)benzene and 2,5-bis(triethoxysilyl)thiophene as organosilica precursors in the presence of a F127 PEO–PPO–PEO triblock copolymer under acidic conditions. H…
Potential energy surfaces for H(2) release from hydrazine interacting with borane, alane, diborane, dialane and borane-alane were constructed from MP2/aVTZ geometries and zero point energies with single point energies at the CCSD(T)/aug-cc-pVTZ level. With one borane or alane molecule, the energy barrier for H(2)-loss…
Layered double hydroxides, a class of anionic nanoclays, have emerged as drug delivery carriers characterized by an effective uptake mechanism via clathrin-mediated endocytosis and high reservoir capacity. In the present review, the efficacy of an anticancer drug with ceramic nanocarriers, i.e. layered double hydroxid…
The formation of a self-assembly between a sensitising antenna and an Eu(III) functionalised cyclen complex 1.Eu, tethered to a gold surface via a C(12) alkyl thiol spacer, is described where changes in the Eu(III) emission signal the formation, and dissociation, of a ternary complex.
The organogel formation of 2,3-dihydroxyimino-oleanic acid in different organic solvents was reported for the first time. The structure and physical properties of the organogel were studied by scanning electron microscopy, circular dichromism spectroscopy and differential scanning calorimetry. The intermolecular hydro…
A temperature-induced shapeable film material was prepared from guar gum-based gel with an ionic liquid, 1-butyl-3-methylimidazolium chloride, by soaking and compression techniques.
Novel tailor-made poly(ester urethane)s (PUs) based on microbial polyesters poly(3-hydroxybutyrate-co-4hydroxybutyrate) (P3HB4HB) and poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) (PHBHHx) were synthesized by melting polymerization (MP) using 1,6-hexamethylene diisocyanate (HDI) as a coupling agent. A comprehensive ch…
Ray-tracing exercise and full-wave analysis were per- formed to validate the performance of a type of cloak composed of isotropic metamaterials. It is shown that objects inside the 'folded region' of this cloak appear invisible to the incoming light from a ray tracing exercise, but exhibit magnifled and shifted scatte…
The study aimed at screening and identifying a potential poly-beta-hydroxybutyrate (PHB) accumulating Bacillus strain and optimization of media parameters for increased PHB production by the strain. A Gram-positive bacterium that accumulated PHB was isolated from local garden soil of Bangalore. Based on morphological…
We investigate the electromagnetic properties of three- dimensional (3D) arbitrarily-shaped invisible cloaks based on the analytical fleld transformation theory instead of the complicated numerical simulations. Very simple closed-form expressions for flelds and energy ∞ows have been derived for arbitrarily-shaped 3D c…
We report a simple one pot procedure for the preparation of hollow microspheres with a shell comprised of an inner polymeric porous membrane and an outer layer of colloidal particles. Solid-stabilised emulsions are used as templates for the precipitation of a high molecular weight polymer at the oil-water interface vi…
Kinetics expressions for passivity breakdown have been determined based on a model taking into account the presence of intergranular defective sites in passive films. It is shown that depending on the interface at which the potential drop increase predominates, passivity breakdown can occur by enhanced dissolution (i.…
Strontium-doped lanthanum cobalt iron oxide is used in solid oxide fuel cells, oxygen separation membranes, and fuel reforming applications because of its mixed ionic and electronic conductivity. With changes in temperature and oxygen partial pressure , the defect concentration changes and there is a corresponding cha…
Redox-dependent emission quenching of low toxic ZnS-AgInS(2) semiconductor nanocrystals was studied and the obtained behavior was found to be applicable to fabrication of fluorescent biosensors in combination with redox enzymes.
Tungsten projectiles were shot into sand at velocities between 600 and 2200 m/s. Penetration was maximum at about 775 m/s. Below that velocity, projectiles were apparently stabilized by a fin set. Above that velocity, projectiles were broken by transverse loads. High‐speed penetration resulted in comminution of sand p…
Fluorescence unquenching measurements of protease-dependent release of fluorescent biomolecules from peptide-capped gold nanoparticles reveal the effect of the monolayer composition on enzyme kinetics.
UCNPs (NaYF4) were efficiently converted to a self-assembled network of a low molecular-weight gelator, thus reinforcing the gel structure and leading to the formation of hybrid multi-colour system through excitation by NIR light.