Materials Literature
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Surface activation of fabric made from cellulose fibres, such as viscose, lyocell, modal fibres and cotton, can be achieved by printing of a concentrated NaOH-containing paste. From the concentration of reducing sugars formed in solution, an increase in intensity of the cellulase hydrolysis by a factor of six to eight…
We have determined the structure of Bacteroides thetaiotaomicron TetX2 at 2.8 Å resolution, and shown that it is a class A flavin dependent oxidoreductase. TetX2 has broad activity against a range of tetracyclines including one of the most recent tetracyclines, tigecycline (Tygacil(®)). Comparison of TetX2 with that o…
Unsaturated polyester resins (UPR) based on palm oil were synthesized from various ratios of monoglyceride/maleic anhydride using polycondensation technique. The chemical structures of MG as well as the resulting polymer matrices were confirmed by spectral FTIR. The ultraviolet (UV) curing behaviours of the resulting…
We validated a preclinical toxicological screening assay and provided guidelines to evaluate the potential impact of nanoparticles (NPs) on blood coagulation. Five NPs with various physicochemical properties were studied using several existing methods of clotting times and thrombin generation assays in human normal po…
Abstract In MnAs 1‐ x P x compounds ( x = 0.006 and 0.01), prepared by mechanical alloying, the thermal hysteresis is greatly reduced from about 10–30 K in MnAs‐based compounds, prepared by conventional melting, to 2 K for x = 0.01 (or 4 K for x = 0.006). Such obvious hysteretic reduction is ascribed to the grain‐size…
We studied the transport, magnetic, and structural properties of Ba${}_{1\ensuremath{-}x}$Sr${}_{x}$V${}_{13}$O${}_{18}$, in which V and O ions form a sodium-chloride lattice with periodically missing sites. We found that the high-temperature insulating phase is characterized by spin-singlet V tetramers, whereas the l…
Abstract The ability of photoinduced surface-relief-grating (SRG) formation of 4-[bis(4-methylphenyl)amino]azobenzene (BMAB) was found to be drastically enhanced by mixing with 4,4′,4′′-tris[3-methylphenyl(phenyl)amino]triphenylamine (m-MTDATA) due to the increase in glass-transition temperature (Tg). The resulting SR…
The objective of this account is to summarize our recent progress with functional biosupramolecular systems concisely. The functions covered are artificial photosynthesis, anion transport, and sensing in lipid bilayer membranes. With artificial photosynthesis, the current emphasis is on the construction of ordered and…
Abstract A one‐step synthesis of heterobifunctional hyperbranched polyethylenes covalently tethered with dual acryloyl and 2‐bromoisobutyryl functionalities at controllable contents is reported. It is achieved in one pot by chain‐walking terpolymerization of ethylene with two functional acrylate comonomers, 1,6‐hexane…
(Ca 1−x Eu x ) 3 Al 2 O 6 , a red light-emitting phosphor with the excitation of purple-blue light, was prepared by traditional solid reaction method with reducing atmosphere at 1350°C for 4 h in a tube furnace. CaEuAlO 4 emerged as an impurity phase when the content of Eu, x, in (Ca 1−x Eu x ) 3 Al 2 O 6 exceeds 0.03…
Femtosecond reflection spectroscopy was performed on a perovskite-type cobalt oxide, namely, Pr${}_{0.5}$Ca${}_{0.5}$CoO${}_{3}$, that undergoes a photoinduced spin-state transition. After photoirradiation at 30 K, the time profile of the reflectance change shows a broad peak reflecting the propagation of the photodom…
A chemical route was developed for pre-treatment of silica nano particles, prior to introducing the filler into the epoxy matrix in order to improve the compatibility of these phases. Silica nanoparticles were reacted with n-(2-aminoethyl)-3-aminopropyltrimethoxysilane (AEAP) coupling agent. The nanophase organic-inor…
A simple solvothermal approach has been developed to successfully synthesize n-type α-In2Te3 thermoelectric nanomaterials. The nanostring-cluster hierarchical structures were prepared using In(NO3)3 and Na2TeO3 as the reactants in a mixed solvent of ethylenediamine and ethylene glycol at 200°C for 24 h. A diffusion-li…
The demand for nanostructured metal oxide electrodes in optoelectronic devices requires investigation of simple and scalable deposition processes. In this study we demonstrate the flexibility of aerosol‐assisted chemical vapor deposition to fabricate single and mixed oxide electrodes. The composition, structure, and m…
Eu(NO(3))(3) · 5H(2)O and EuCl(3) · 6H(2)O were allowed to react with bis(diphenylphosphino)alkane dioxides Ph(2)P(O)(CH(2))(n) P(O)Ph(2)(n = 2, 4, 6) to obtain polymeric and binuclear complexes. The prepared compounds were structurally characterized by X-ray diffraction. Luminescence measurements (emission and excita…
We report here the Diels−Alder reaction of octa(diphenylacetylene)silsesquioxane [DPA 8 OS] with tetraphenylcyclopentadienone or tetra( p -tolyl)cyclopentadienone to form octa(hexaphenylbenzene)octasilsesquioxane, (Ph 6 C 6 ) 8 OS, or octa(tetratolyldiphenylbenzene)octasilsesquioxane, ( p -Tolyl 4 Ph 2 C 6 ) 8 OS. Lik…
The inversion of angle resolved XPS data is a difficult problem, due to mathematical complexity of accurate model of electron transport, sensitivity to noise and small number of measured points limiting the depth resolution and the accuracy of the calculated depth profiles. Extended maximum entropy model for the calcu…
Abstract Fairly monodisperse “dog bone” shaped gold nanorods were obtained clean and in high yield. Their average aspect ratio could be adjusted from ∼ 2 to ∼ 3 by altering the amount of silver nitrate present in the growth solution. They were coated with a uniform, ultrathin shell of silica and used to detect parathi…
Acid-solubilized collagen type I (COL1) can form highly organized, three-dimensional scaffolds for a wide variety of bioengineering and cell culture applications. A rapid COL1 isolation method would be a valuable tool for both basic and translational researchers because conventional techniques require days or weeks to…
A series of compact La/O-vacant La(1-x)CoO(3-y) compounds were prepared by a cold high-pressure procedure, and their thermoelectric (TE) properties were investigated. Compared with the ion-substituted hole-type LaCoO(3) systems (e.g., La(1-x)Sr(x)CoO(3)), the thermal conduction of La(1-x)CoO(3-y) is noticeably reduced…