Materials Literature
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The effect of annealing on the miscibility and phase behavior of Sorona {poly(trimethylene terephthalate), PTT} and bisphenol A polycarbonate (PC) blends was examined. These blends exhibited heterogeneous phase-separated morphology and two well-spaced glass transition temperatures (Tgs) indicating immiscibility. The S…
The purpose of this study was to prepare and characterize a three-dimensional scaffold consisting of porous nonwoven silk fibroin net/nano-apatite composite. The silk fibroin net was mineralized with apatite by alternative soaking in calcium and phosphate solutions. The scaffold exhibited a porous microstructure with…
Protein-resistant polyurethane (PU) surfaces were prepared by surface-initiated simultaneous normal and reverse atom transfer radical polymerization (s-ATRP) of poly(oligo(ethylene glycol) methacrylate) (poly (OEGMA)). Oxygen plasma treatment was employed for initial activation of the PU surface. The grafted polymer c…
Single-crystalline Y(OH) 3 nanowires were synthesized from Y 2 O 3 powder by a simple acetic acid assisted hydrothermal method under near neutral conditions. The nanowires show unusual, bundle-like morphology with diameter of 20−50 nm and aspect ratio of 600−2000. It is found that the presence of acetic acid and its c…
Abstract Längere Schaltwellenlängen und gute photochemische Ausbeuten und Stabilitäten des cis ‐Isomers in reduzierenden wässrigen Umgebungen kennzeichnen 4,4′‐Diamido‐substituierte Azobenzole mit 2,2′‐Aminoalkyl‐Substituenten. Die Produkte eignen sich zur Photosteuerung biomolekularer Strukturen in zellulären Umgebun…
Gold nanoclusters stabilized by poly(N-vinyl-2-pyrrolidone) (Au:PVP) promote the oxidation of benzylic ketones, including auto-oxidation-type bond-cleavage reactions and α-hydroxylation, under ambient conditions. The catalyst accelerates the formation of an α-peroxide intermediate, from which bond cleavage spontaneous…
An industrial cylinder Ni-based catalyst, LaNiO x /ZSM-5 (ϕ = 3 mm), was prepared by a sol−gel method, and its catalytic performance was investigated for CH 4 /CO 2 reforming reaction not only in laboratory scale but also in pilot plant scale. The result revealed that the conversion of CH 4 and CO 2 was 97% and 94%, r…
The adsorption and dissociation of H(2) on the neutral and charged gold clusters Au(n) (m)(m=0,+/-1; n=1-6) is investigated using the density functional theory PW91 functional. H(2) interacts very weakly with Au(n) (-1), whereas the interaction with Au(n) (+1) is relatively strong. The binding energies on neutral clus…
Electroluminescent polymeric nanofibers embedding dye-loaded zeolite L crystals are prepared. By exciting the polymer nanofiber, the energy is transferred to the fluorescent dyes inside the zeolite L channels through a two-step Förster resonant energy transfer process. This study opens new perspectives in the field of…
Operation strategies for controlling the extent of homogeneous chemistry in homogeneous−heterogeneous (HH) reactors were developed for a catalytic plate microreactor using a two-dimensional computational fluid dynamics model for propane combustion on Pt as our prototype system. The effect of the reactor gap size (dist…
Hybrid light emitting diodes (LEDs) based on n-ZnO nanorods and blended polymers were fabricated and characterized. The blended polymers consisted of a blue emitting polymer and a charge transport polymer. The effect of the interlayer design on the electrical and electroluminescent characteristics of these hybrid LEDs…
A series of compounds, CaBi4Ti4O15 (CBT), SrBi4Ti4O15 (SBT), and BaBi4Ti4O15 (BBT), belonging to the Aurivillus-type structure (four layers) has been prepared by a modified chemical route. Different oxalates were precipitated from their respective nitrate solution onto the surface of TiO2 powders. The room temperature…
Abstract ZnO nanoparticles were prepared by using a gas evaporation method. As ZnO is a luminescent and less toxic material, it can be useful in imaging applications. The nanoparticles prepared in our laboratory showed intense exciton emission in the UV‐blue region. They were processed and surface treated to be compat…
Dispersion of ultranarrow ZnS nanorods of molecular dimensions encapsulated by a fluid-like soft organic layer in the nematic liquid crystal (LC ZLI-4792) results in a novel soft-matter-type blend with previously unachieved electro-optic properties. The local ordering of the nanorods significantly affects the global o…
We present a theoretical analysis of resonant x-ray Bragg diffraction data from multiferroic ${\text{TbMnO}}_{3}$ presented by Mannix et al. [Phys. Rev. B 76, 184420 (2007)] and Voigt et al. [Phys. Rev. B 76, 104431 (2007)]. We have chosen an approach that does not rely on knowledge of the low-temperature phase space…
A new semiorganic material, l -proline lithium chloride monohydrate (LPLCM), was synthesized for the first time. Its solubility and metastable zonewidth in double distilled water were estimated. Employing a temperature reduction method, a crystal of size 16 × 6 × 5 mm 3 was grown from aqueous solution. The cell dimens…
Abstract A series of (porphyrinato)zinc(II) compounds were synthesized with use of 5,10,15,20‐tetraphenylporphyrin (H 2 TPP), 2,3,5,10,12,13,15,20‐octaphenylporphyrin (H 2 OPP), and 2,3,5,7,8,10,12,13,15,17,18,20‐dodecaphenylporphyrin (H 2 DPP). Those compounds form complexes with aniline, pyridine, and 3‐ and 4‐amino…
This study was conducted to evaluate the in vitro fungicidal effects of calcium and chitosan on Colletotrichum gloeosporioides and to as well determine their effects on storage life and quality of papaya. Potato Dextrose Agar (PDA) incorporated with calcium at different concentrations (1.5, 2.5 or 3.5%) or in combinat…
Transmission electron microscopy (TEM), scanning tunneling microscopy (STM), and micro-Raman investigations of epitaxial graphene on 4H-SiC on-axis and 4° off-axis are presented. The STM images show that there is superimposed on 1×1 graphene pattern the carbon nanomesh of honeycomb 6×6 structure with the lattice vecto…
This article presents a study of the damage production in yttria-stabilized cubic zirconia single crystals irradiated with swift heavy ions. The combination of techniques which probe the material at different spatial scales (Rutherford backscattering spectrometry in channeling geometry, x-ray diffraction, transmission…