Materials Literature
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Abstract The desire to improve the properties of cellulose‐reinforced composites while producing them by methods as similar as possible to those used on an industrial scale is one of the driving forces in this field of research. In this work, extensive research for determining the mechanical, thermal, rheological, and…
Intense violet-blue emitting (CaCl2/SiO2) : Eu2+ phosphor powders for applications in UV-LED based phototherapy illuminators, Hao, Zhendong, Zhang, Jiahua, Zhang, Xia, Ren, Xinguang, Luo, Yongshi, Lu, Shaozhe, Wang, Xiaojun
We present a generalized valence-force-field (VFF) model for the ternary III--V alloys ($\text{III}=\text{Ga}$, In and $\text{V}=\text{N}$, P) to predict the formation energies and atomic structures of ordered and disordered alloy configurations. For each alloy (GaInN, GaInP, GaNP, and InNP) the VFF parameters, which…
The Rv0948c gene from Mycobacterium tuberculosis H(37)R(v) encodes a 90 amino acid protein as the natural gene product with chorismate mutase (CM) activity. The protein, 90-MtCM, exhibits Michaelis-Menten kinetics with a k(cat) of 5.5+/-0.2s(-1) and a K(m) of 1500+/-100microm at 37 degrees C and pH7.5. The 2.0A X-ray…
In a previous paper [Mita et al. Macromolecules 2007, 40, 5923], we reported that the zone heating method applied to the block copolymer bulk forming hexagonally packed cylindrical (hex-cyl) microdomain structure enables to develop unique columnar grains macroscopically extended along the temperature gradient (▽ T ) a…
In this paper, fabrication of nano-scale 3-D features by total internal reflection generated single exposure counter propagating multiple evanescent waves interference lithography (TIR-MEWIL) in a positive tone resist is investigated numerically. Using a four incident plane waves configuration from an 364nm wavelength…
Insight into the electronic communication between the individual constituents of multicomponent molecular architectures is essential for the rational design of molecular electronic and/or photonic devices. To clock the ground-state hole/electron-transfer process in oxidized multiporphyrin architectures, a p-diphenylet…
The electrochemical behaviors of hyperbranched poly(ferrocenyl-methylsilane) (HPFMS) and linear oligo(ferrocenyldimethylsilane) (LOFS) films were studied systematically by cyclic voltammetry and chronocoulometry under different polymer coverage and solvents. Both poly(ferrocenylsilanes) show stable cyclic voltammograp…
Abstract The new pyrimidyl‐ and naphthyridyl‐modulated pentapyridyltetramine ligand (H 3 N 9 ‐2pm) and its linear nona‐ and octanickel chain complexes were successfully synthesized. The nonanickel complex [Ni 9 (μ 9 ‐N 9 ‐2pm) 4 Cl 2 ](PF 6 ) 2 ( 1 ) contains two fully delocalized, mixed‐valence [Ni 2 (napy) 4 ] 3+ un…
Broadband dielectric measurements on leucrose were performed under ambient and high pressure. We showed that in this disaccharide, there are two secondary relaxation modes, a slower one sensitive to pressure and a faster one that is not. This finding clearly indicates that the faster secondary relaxation originates fr…
This study documents the effect of body mass on the size and strength of draglines produced by the orb-weaving spider Araneus diadematus and the jumping spider Salticus scenicus. Silk samples obtained from individuals spanning the range from first-instar juveniles to gravid adults were tested to determine both the pro…
Silicas with deposited hydridepolysiloxane layers were used for the in situ preparation of gold nanoparticles by the reduction of metal ions from a solution of chloroauric acid. The metal-containing silicas obtained were characterized by X-ray powder diffraction, transmission electron microscopy, and UV, IR, and laser…
Studies on nine-coordinate lanthanide complexes of morin are described. The complexes were characterized by elemental analysis, molar conductance, UV–Vis spectra, IR spectra, thermal analysis and NMR spectra. Molecular modeling studies were also carried out. The complexes are non-electrolytes in DMSO. TGA showed anhyd…
Transverse polarized diffuse streaks have been recorded via transmission electron microscopy for a range of Pb(Zr 1− x Ti x )O 3 ceramics spanning the entire phase diagram from the rhombohedral phase ( x = 0.3), through the monoclinic morphotropic phase boundary region (MPB; x = 0.48) to the tetragonal phase ( x = 0.7…
With 4′-cyanobiphenyl-4-yl benzoate nematogens chemically bonded to a benzene core via enantiomeric 2-methylpropyl spacers, a new series of cholesteric glassy liquid crystals has been synthesized for an investigation of structure−property relationships. Glass-forming ability, phase-transition temperatures, and stabili…
Abstract The deposition technique is responsible for the morphological and crystalline properties of the thin films obtained by spray pyrolysis. The influence of the deposition parameters on the WO 3 films properties is presented. The main characterisation concerns the topography (AFM), crystalline parameters (XRD), s…
This work demonstrates luminescence resonance energy transfer (LRET) sensors based on lanthanide-doped nanoparticles as donors (D) and gold nanoparticles as acceptors (A), combined through electrostatic interactions between the oppositely charged nanoparticles. Negatively charged lanthanide-doped nanoparticles, YVO(4)…
Lead-based, perovskite phase-pure ferroelectric thin films have been prepared without using any PbO-excess addition by ultraviolet sol−gel photoannealing at 450 °C. The conditions imposed by this method avoid the volatilization of lead from the ceramic composition while leading to gradient-free heterostructures and re…
In situ and ex situ time-evolution of photoluminescence data during growth of ZnO/MgO core/shell quantum dots (Qdots) were used to study the stability of the green–white (CIE: 0.32, 0.41) luminescence from ZnO defects. The ZnO/MgO Qdots, synthesized by a sol–gel process, exhibited a quantum yield of 13% compared with…
Abstract We report on the fabrication of high aspect ratio diamond Micro Electrode Arrays (MEAs) grown on silicon as well as on glass substrates using an optimised nanoseeding technique and Bias Enhanced Nucleation (BEN). Such MEA systems combine high electrode reactivity and high electrical current injection limits w…