Materials Literature
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Four new diacid amides of dicholesteryl L-phenylalaninate were designed and prepared. The compounds with spacers containing three, four, five, or six carbon atoms are denoted as 1–4, respectively. Gelation tests showed that the four compounds are versatile organogelators, and a subtle change in the length of the space…
To investigate anti-inflammatory effects of carotenoids from Halocynthia roretzi, gene expression levels were measured for pro-inflammatory cytokines and enzymes in the murine macrophage-like cell line, RAW264.7, stimulated with lipopolysaccharide (LPS). All-trans alloxanthin, all-trans diatoxanthin, and their 9-cis i…
This study provides further tests of the validity of the triple network structure of the body-centred Imm (I) cubic phase in polycatenar (phasmidic) liquid crystals, proposed by Zeng et al., Nat. Mater., 2005, 4, 562. New hemiphasmid compounds were synthesised, two of which (6 and 7) display the above phase, while 8 s…
The attachment of CMC to pulp is known to have a strong impact on the tensile strength properties. The mechanisms behind the strength-enhancing ability of the CMC have been investigated by studying the effect of surface carboxymethylation on some basic fibre and sheet properties. Standard methods were used for the str…
A series of ionic bis(pyrazole)-silver(I) and -gold(I) complexes [ML(2)][A] (M = Ag, Au; A = BF(4)(-), PF(6)(-), NO(3)(-)), prepared by coordination of the mesomorphic L = Hpz(2R(n)) or non-mesomorphic L = Hpz(R(n)) pyrazole ligands (Hpz(2R(n)) = 3,5-bis(4-alkyloxyphenyl)pyrazole; Hpz(R(n)) = 3-(4-alkyloxyphenyl)pyraz…
We successfully developed an elasticoluminescent (EML) material with water resistance, (CASE). The crystal structure, photoluminescence (PL), and EML properties were characterized for both CASE and the typical EML material (SAOE). Contrary to SAOE, CASE showed superior water resistance property. No changes were found…
A model for tunable thin film bulk acoustic resonators (TFBARs) based on ferroelectric films is proposed. The model is based on electromechanical equations taking into account piezoelectric effect and electrostriction effect induced by the dc electric field. The dc field induced shift of the resonant frequency is expl…
An industrially viable solution-based processing route using minimal amounts of solvent has been used to prepare bulk quantity nanopowders (average particle size 15 ± 3 nm) for the fabrication of ZnO varistors. The xerogels, calcined powders and sintered materials were fully characterised. The preparation of varistors…
Mercury selenide (HgSe) quantum dots have been synthesised and capped with the coordinating solvent trioctylphosphine oxide (TOPO), which mediated growth and stabilised the particles. By varying the precursor to surfactant ratio, differing particle morphologies were obtained.
In this work we report on the growth of ZnS semiconductor nanocrystals embedded in a polymeric matrix (Polyvinyl alcohol) were synthesized by a chemical route. The asobtained films were characterized by X-ray diffraction (XRD), Transmission electron microscopy (TEM), UV–VIS absorption, and photoluminescence (PL) spect…
Sterically hindered [0.0](3,3')-azobenzenophane exhibits thermal trans-to-cis isomerization to the thermodynamically stable cis-cis isomer, and reversible photochemical isomerization with good fatigue resistance.
Silver platelets can undergo quantitative conversion to right bipyramids and twinned cubes by regrowth with silver in conditions that preserve original 2-D structural defects in resulting 3-D morphologies.
The effect of microstructural evolution on the creep properties in Mg-Sn-Ca system has been investigated. As-cast microstructure of Mg-Sn-Ca alloy consists of two or three phases depending on the Ca/Sn ratio, i.e. Mg2Sn, CaMgSn and Mg2Ca phases. Ternary CaMgSn phase has two types of morphology by its pseudo hyper-eute…
The synthesis and spectral analysis of a new class of long wavelength intrinsic fluorosensor is reported. Chemosensor performance reveals large off/on fluorescence intensity responses to acid analyte with low response to microenvironment polarity. Application to ratiometric fluorescence/UV-visible analysis is outlined.
A series of [Pt(ii)(diimine)(dithiolate)] complexes of general formula [Pt{X,X'-(CO(2)R)(2)-bpy}(mnt)] (where X = 3, 4 or 5; R = H or Et, bpy = 2,2'-bipyridyl and mnt = maleonitriledithiolate), have been spectroscopically, electrochemically and computationally characterised and compared with the precursors [Pt{X,X'-(C…
The effect of pore size on dehydrogenation temperature and kinetics of coherent carbon–ammonia borane nanocomposites prepared by sol–gel synthesis as potential on-board hydorgen storage materials is reported.
We report a molecule-scale controlled-release system based on silica nanoparticles bearing a photoactive o-nitrobenzyl bromide linkage, which allows cage and release of drug or biologically active molecules by light.
The influence of T5 and T6 tempers at 523 K on the mechanical properties and microstructure of hot-rolled WE43 alloy has been studied. The microstructure of the alloy under various conditions was studied using an optical microscope, a transmission electron microscope, and a x-ray diffractometer. The mechanical propert…
ZrB2-SiC composites were prepared by arc melting using ZrB2 and β-SiC powders as raw materials and their Vickers micro-hardness, electrical conductivity and thermal conductivity were investigated. The eutectic composition of the ZrB2-SiC system was ZrB2-58.5 mol%SiC with a labyrinthine microstructure 100 nm in width a…
A series of L(2) = diimine (Bian = bis(3,5-diisopropylphenylimino)acenapthene, Bu(t)(2)bpy = 4,4'-di-tert-butyl-2,2'-bipyridine) supported aqua, hydroxo, oxo, amido, imido, and mixed complexes have been prepared. Deprotonation of [L(2)Pt(mu-OH)](2)(2+) with 1,8-bis(dimethylamino)naphthalene, NaH, or KOH yields [(L(2)P…