Materials Literature
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Abstract Starch consolidation casting (SCC) is a versatile and well established process for shaping ceramic green bodies by casting starch‐containing suspensions into impermeable molds. The process is based on the ability of starch to swell and absorb water from aqueous ceramic suspensions after heating to approx. 80°…
Three isostructural heterobimetallic nitrilotriacetatoperoxotitanate complexes of general formula [M(H(2)O)(5)](2)[Ti(2)(O(2))(2)O(nta)(2)].7H(2)O [M = Co (1), Ni (2) and Zn (3)] have been isolated in pure crystals directly from the quaternary system of M(2+)-Ti(OC(4)H(9))(4)-H(2)O(2)-H(3)nta (H(3)nta = nitrilotriacet…
In this study composites of high density polyethylene (HDPE) with various SiO2 content were prepared by melt compounding using maleic anhydride grafted polyethylene (PE-g-MAH) as a compatibilizer. The composites containing 2, 4 and 6% by weight of SiO2 particles were melt-blended in a co-rotating twin screw extruder.…
Alloys of iron and gallium were electroplated to produce magnetostrictive Galfenol Fe 1 − x Ga x ( 10 < x < 40 atom % ) thin films. A trapezoidal Hull cell was used to control composition via a combinatorial approach where the deposition current density was varied predictably across the cathode. Four parameter spaces…
This review article describes our neutron scattering experiments made in the past four years for the understanding of the single-particle (hydrogen atom) dynamics of a protein and its hydration water and the strong coupling between them. We found that the key to this strong coupling is the existence of a fragile-to-st…
A highly fluorescent conjugated oligomer, oligo(1-methoxyl pyrene) (OMOPr), was synthesized via electrochemical polymerization and its structure was studied by UV-vis spectroscopy, MALDI-TOF mass spectroscopy and ab initio calculation. The organic solutions of OMOPr emit strong blue lights and show solvatochromic effe…
Red emission phosphors were synthesized by solid-state reaction, and their photoluminescence properties were investigated for the first time. The results indicate that phosphors have many advantages, such as lower synthesis temperature, strong absorption in the near-UV region, and excellent chromaticity coordinates. p…
A photochromic naphthopyran system in which both optical density and fading speed of colored forms are significantly increased has been described. 3-Aryl-3-(α-naphthalene)-3H-naphtho[2,1-b]pyrans showed thermal stability, and a large optical density of colored forms was obtained at ambient temperature. By attachment o…
Boron nitride (BN) nanosheets/polysiloxane composites were fabricated under nano pulse width electric field to enhance the anisotropic alignment of BN nanosheets in a viscous matrix. BN nanosheets have unique physical and thermal properties and exhibit semiconducting behavior with a wide band gap comparing to carbon g…
Electrospinning was used to fabricate fibrous scaffolds of lipase-catalyzed poly(omega-pentadecalactone) (PPDL). The slow resorbability of this biomaterial is expected to be valuable for tissue-engineering applications requiring long healing times. The effect of solvent systems and instrumental parameters on fiber mor…
(Ba1−xCax)m(Ti1−yZry)O3 (BCTZ-x-y-m) ceramics were studied to clarify the effects of Ca and/or Zr addition and the non-stoichiometry of BCTZ ceramics. The range of each element was 0.00 ≦ x, y ≦ 0.25 and 0.995 ≦ m ≦ 1.02. All powders were prepared by a solid state reaction method. Green bodies with disc shapes were si…
The rational design of new heterogeneous catalysts for clean chemical technologies can be accelerated by molecular level insight into surface chemical processes. In situ methodologies, able to provide time-resolved and/or pressure dependent information on the evolution of reacting adsorbed layers over catalytically re…
Small intestinal submucosa (SIS) has the potential for use as a natural scaffold material because of the presence of type-I and -III collagen and various cytokines. However, although the presence of growth factors in SIS leads to superior initial cell attachment and proliferation compared to synthetic polymeric scaffo…
In this article I will review some recent studies of the phase behavior and of the self-assembly of patchy colloidal particles. These studies have been based on simple primitive models for colloid–colloid interactions, effectively extending to soft matter the seminal work of I. Nezbeda on associated fluids. I will dis…
Ethylene-propylene-diene terpolymer (EPDM)/wheat husk fibers (WHFs) composites were prepared using a laboratory size two-roll mill. Cure characteristics and some physical properties such as swelling, mechanical, and thermal properties of the vulcanizates were studied. The adhesion status between the WHF and rubber mat…
The chemistry of aluminium alkoxides and chemical modifications thereof by a variety of organic compounds, such as pyridine, aminoalcohols, β-diketonic compounds or carboxylic acids, are reviewed. Special focus is put on structural aspects. Modification of aluminium alkoxides by organic ligands is of great importance…
The phenomenon of the surface plasmon assisted electromagnetic field concentration in the vicinity of the metal/dielectric interface of a periodically perforated with subwavelength holes arrays plasmonic structure is considered. An increase of the local stationary magnetic field appearing due to the inverse Faraday ef…
The synthesis of a new functionalised bis-macrocyclic ligand (L1) is described together with the corresponding Ln(III) complexes, Ln(2)- (Ln = Gd(III), Eu(III)). Phosphorescence measurements on Gd(2)- at 77 K allowed the ligand-centred triplet state ((3)pi-pi*) to be estimated at ca. 28500 cm(-1). Steady state and tim…
The first and second generation of zinc porphyrin core dendrimers (3 and 4) with triarylamine as dendron have been synthesized via Ullmann coupling reaction. Their absorption and emission spectra indicate that there are strong interactions between zinc porphyrin core and triarylamine dendrons. Zinc porphyrin links wit…
The spread of a wetting liquid sessile droplet into porous medium is solved numerically using the capillary network model with a microforce balance boundary condition at the liquid/gas free interface in the porous medium. The spread starts as the porous medium imbibes the sessile liquid, followed by liquid additionall…