Materials Literature
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A growth mechanism for single crystalline hollow spheres was proposed based on the study of the formation process of single crystalline Cu 2 O multishelled hollow spheres. On the basis of transmission electron microscopy, high resolution transmission electron microscopy, selected area electron diffraction analysis of…
A rapid chemical method has been developed for the synthesis of the Ag 2 Te nanorods with monoclinic crystalline phase. The method is based on the template-engaged synthesis in which the Te nanorods were used as template reagents. On the basis of a series of experiments and characterizations, the effect factors and th…
Niedriger Schmelzpunkt – hohe Lumineszenz: [C3mim][Eu(Tf2N)4] (1), [C4mim][Eu(Tf2N)4] und [C4mpyr]2[Eu(Tf2N)5] sind die ersten Ln-basierten ionischen Flüssigkeiten, die keine Stabilisierung durch neutrale Coliganden erfordern. Sie zeigen exzellente photophysikalische Eigenschaften, wie lange Lebensdauer der Lumineszen…
Bioreactors are widely used in tissue engineering as a way to distribute nutrients within porous materials and provide physical stimulus required by many tissues. However, the fluid dynamics within the large porous structure are not well understood. In this study, we explored the effect of reactor geometry by using re…
The l-rhamnonate dehydratase (RhamD) function was assigned to a previously uncharacterized family in the mechanistically diverse enolase superfamily that is encoded by the genome of Escherichia coli K-12. We screened a library of acid sugars to discover that the enzyme displays a promiscuous substrate specificity: l-r…
The experimental (100 K) and theoretical charge densities in the binuclear complexes [Cu2(ap)2(L)2] (ap = 3-aminopropanolate) 1 (L = nitrite), 2 (L = nitrate), and 3 (L = formate) have been examined. These complexes contain the same centrosymmetric alkoxy-bridged motif, where each strongly Jahn-Teller distorted Cu(II)…
By means of a plasma technique, the surfaces of monodisperse polystyrene (PS) colloids have been modified with hydroxyl groups. Using these surface-modified PS colloids as sacrificial templates, we have fabricated silica-coated PS colloids (PS@silica) and titania-coated PS colloids (PS@titania) composite microspheres…
Abstract In a follow‐up study of the cobalt(II) member 1 of a family of isostructural cubane clusters of type [C(NH 2 ) 3 ] 8 [M II 4 (cit) 4 ]·8H 2 O (cit = citrate, M = Mg, Mn, Fe, Co, Ni, Zn) by measuring AC magnetic susceptibilities, as a function of frequency, this compound clearly displays behaviour typical of m…
In this research wood-plastic composite (WPC) panels were produced from high density polyethylene, MDF, and particle-board waste at 60, 70, and 80 wt% fiber loadings using the dry blend/hot press method. Physical and mechanical properties of the panels were studied and compared with conventional MDF and particle-board…
Convection-enhanced delivery (CED) with various drug carrier systems has recently emerged as a novel chemotherapeutic method to overcome the problems of current chemotherapies against brain tumors. Polymeric micelle systems have exhibited dramatically higher in vivo antitumor activity in systemic administration. This…
This paper presents an aqueous route to size-controlled and doped CeO 2 nanoparticles using the Ce-oleate complex as a chemically modified precursor. In this synthesis, a hydrolytic condensation of Ce-oleate complex by aqueous ammonia solution at room temperature leads to 2.2 nm sized CeO 2 nanocrystals. These product…
The creation of Néel domain walls by electric fields in conventional and weak ferromagnets is discussed. In an inhomogeneous electric field the walls move with velocity proportional to the field gradient.
Desymmetrization isn't complex: The substrate scope for vanadium-catalyzed epoxidation has been extended. In addition to various allylic alcohols, homoallylic alcohols can also be desymmetrized by using vanadium/bishydroxamic acid complexes (see scheme; CHP=cumene hydroperoxide).
The ferroelectric state in an orthorhombic perovskite RMnO3 (R=Gd0.7Tb0.3) was proved by neutron scattering studies to show the cycloidal spin state with the ab-spiral plane and the spin-helicity dependent polarization vector along the a axis, sharing the microscopic origin (inverse Dzyaloshinskii-Moriya interaction)…
An intracellular mannanase was identified from the thermoacidophile Alicyclobacillus acidocaldarius Tc-12-31. This enzyme is particularly interesting, because it shows no significant sequence similarity to any known glycoside hydrolase. Gene cloning, biochemical characterization, and structural studies of this novel m…
Nanosilica was used to reinforce the selective laser sintering (SLS) parts of nylon-12. A dissolution—precipitation process was successfully developed to prepare a nanosilica/nylon-12 composite powder (containing 3 wt% nanosilica) for SLS process. The dispersion of nanosilica in the SLS specimens of the composite powd…
We have explored a new strategy to discover materials with large resistive or capacitive responses to magnetic fields by synthesizing EuMO2N (M = Nb, Ta) perovskites that combine ferromagnetic order of S = 7/2 Eu2+ spins with possible off-center distortions of the d0 M5+ cations enhanced by covalent bonding to N. EuNb…
Muon spin rotation experiments were performed on the pnictide high temperature superconductor ${\mathrm{SmFeAsO}}_{1\ensuremath{-}x}{\mathrm{F}}_{x}$ with $x=0.18$ and 0.3. We observed an unusual enhancement of slow spin fluctuations in the vicinity of the superconducting transition which suggests that the spin fluctu…
Electron-transfer makes a magnet: 2:1 assembly of [Ru2II,IIL4] paddlewheel complexes and BDTA-TCNQ yielded a new structural type of electron-transfer system with a three-dimensional network structure which exhibits a long-range ferromagnetic transition at Tc=107 K (see depicted χ vs T curve and inset view of structure…
A new class of linear-dendron-like poly(ε-caprolactone)- b -poly(ethylene oxide) (PCL- b -PEO) copolymers with unsymmetrical topology was synthesized via controlled ring-opening polymerization (ROP) of ε-caprolactone (CL) followed by a click conjugation with azide-terminated PEO (PEO-N 3 ). The dendron-like PCL termin…