Materials Literature
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A considerable improvement in the quality of TiO 2 coatings on multiwalled carbon nanotubes (MWNTs) was obtained by introducing a three-step purification and functionalization process which combines oxidation in air followed by sulfuric acid refluxes and reoxidation in air before synthesis of the TiO 2 coating by the…
The solubilization of four bioactive molecules with different polarities, in three reverse hexagonal (HII) systems has been investigated. The three HII systems were a typical reverse hexagonal composed of glycerol monooleate (GMO)/tricaprylin/water and two fluid hexagonal systems containing either 2.75 wt % Transcutol…
Novel semiconductor block copolymers were synthesized using nitroxide-mediated radical polymerization (NMRP). They are comprised of a hole conductor block carrying tetraphenylbenzidine pendant units (PVDMTPD) and a second poly(4-vinylpyridine) (P4VP) block suitable for the preferential incorporation of n-type semicond…
This paper describes the microstructural and mechanical properties of injection moulded Ti–6Al–4V parts. Ti–6Al–4V powder was injection moulded with wax based binder. The critical powder loading for injection moulding was 67·5 vol.-% for feedstock. Binder debinding was performed with solvent and thermal method. After…
Six new copper(II)-malonate containing complexes [Cu(dpydiol)(mal)(H 2 O)]·2H 2 O ( 1 ) (dpydiol = bis(2-pyridyl)methanediol), [Cu(dpa)(mal)(H 2 O)]·H 2 O ( 2 ) (dpa = 2,2′-dipyridylamine), [Cu(pyim)(mal)(H 2 O)]·H 2 O ( 3 ) (pyim = 2-(2-pyridyl)imidazole), [Cu(dpp)(mal)(H 2 O)]·3/2H 2 O ( 4 ) (dpp = 2,3-bis(2-pyridyl…
Two dendrimers were designed and synthesized that contain a 1,3,5-trisubstituted benzenoid core and incorporate 9 and 21 viologen (4,4'-bipyridinium) units in their branches in addition to hydrophilic (aryloxy) terminal groups. For comparison purposes, model compounds containing one and two viologen units were also st…
Formation of Mn 2+ -doped ZnSe quantum dots (Mn:ZnSe d-dots) with both branched and nearly spherical shapes has been studied. Structure analysis indicates that the Mn 2+ dopants were localized in the core of a branched nanocrystal. The growth of branched d-dots, rather than spherical ones, was achieved by simply varyi…
Sub-micrometer-sized chloroapatite blue phosphors are successfully synthesized from aqueous precursors using a spray pyrolysis method with a very short processing time and without any post-heat treatments. The as-prepared phosphors reveal high quantum efficiency in the long-UV range (around 80% under excitation at 400…
Abstract The layered perovskite GdBaCo 2 O 5 + δ (GBCO), recently proposed for intermediate temperature solid oxide fuel cell applications, was investigated and compared with Ba 0.5 Sr 0.5 Co 0.8 Fe 0.2 O 3 – δ (BSCF) cathode material using La 0.9 A 0.1 Ga 0.8 Mg 0.2 O 2.85 (A=Sr,Ba) as electrolytes. Area‐specific res…
A sensing method based on resonance localized surface plasmon spectroscopy was developed for low molecular weight substrate and inhibitor molecules binding to heme proteins. Cytochrome P450 proteins have Soret and Q absorption bands in the visible wavelength region. The coupling between the molecular resonance of P450…
We fabricated a series of glasses with the composition 94.7-χGeO2-5Al2O3-0.3Bi2O3-χPbO (χ=0-24mol.%). Characteristic absorption bands of bismuth centered at 500, 700, 800, and 1000 nm were observed. Adding PbO was found to decrease the strength of bismuth absorption. The addition of 3%-4% PbO resulted in a 50% increas…
A new chromophoric low molecular weight (LMW) organic molecule, 1, was synthesized, and it forms gels in various organic solvents including toluene, o-xylene, m-xylene and p-xylene. The resultant gel phase materials exhibit enhanced and red-shifted fluorescence emission in the respective gelling solvents. This gelator…
ADVERTISEMENT RETURN TO ISSUEPREVNoteSemianalytical Continuum Model for Nondilute Neutral and Charged Brushes Including Finite StretchingP. M. Biesheuvel*†, W. M. de Vos‡, and V. M. Amoskov§View Author Information Department of Environmental Technology, Wageningen University, Bomenweg 2, 6703 HD Wageningen, The Nether…
The present study aimed to determine the feasibility of constructing a reinforced autologous vascular graft by combining the advantages of fibrin gel as an autologous cell carrier material with the inherent mechanical strength of an integrated mesh structure. It was hypothesized that the mesh and dynamic culture condi…
We hereby report an easy solvothermal pathway for the large-scale preparation of flower-like carbon nanosheet aggregations (FCNAs) by reacting ferrocene and carbon disulfide at 800 °C in a sealed system for 10 h. The flower-like microstructure is 2−4 μm in diameter, and composed of the aggregated carbon nanosheets wit…
The formation energies and electronic structure of lattice vacancies, antisite defects, and lanthanum impurities in ${\text{NaTaO}}_{3}$ are investigated using first-principles calculations based on density-functional theory. The Na antisite and the Ta vacancy, which are both multiple acceptors, are energetically favo…
Abstract Cellulose/silica hybrid (CSH) composites were prepared from bleached Eucalyptus globulus kraft pulp or primary treatment sludge cellulose fibers by a sol–gel method, using solely tetraethoxysilane or with the addition of trimethoxyoctylsilane as the silica precursors and heteropoly acid (H 3 PW 12 O 40 ) as t…
The term "housane" refers to molecules possessing a bicyclo[2.1.0]pentane core. One was designed, synthesized, and used as a precursor of daucene, a member of the carotane class of sesquiterpenes. The total synthesis was completed, thereby marking the first time that housane-derived cation radicals have been used as t…
Metal nanoshells, which consist of nanometer-scale dielectric cores surrounded by thin metallic shells, have been designed and studied for their linear optical responses. The plasmon resonance of metal nanoshells displays geometric tunability controlled by the ratio of shell thickness either to the core radius or to t…
Colored carbocations beyond the visible! A porphyrin dimer carbocation is synthesized with effective delocalization over 18 conjugated bonds. Placing a carbocation at the center of a conjugated porphyrin dimer shifts its absorption into the infrared and results in strong ultrafast nonlinear optical behavior.