Materials Literature
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This paper describes an unfolding motion of fabric in air using pinching slip motion. During the pinching slip motion, the weight of the fabric generates relative movement between the moving fingertips and the fabric. The moving fingertips can hook into the hem of the fabric during the unfolding motion if the appropri…
Photorelease and photoisomerization of trans-cinnamic acid in aqueous CTAB solutions induces a bulk solution viscosity increase and decrease, respectively, triggered by orthogonal irradiation wavelengths.
Molecular mechanics and molecular dynamics simulations have been employed to characterise the interactions between SWNTs and biocompatible amphililic derivatives of chitosan, namely N-butyl-O-sulfate chitosan (NBSC), N-octyl-O-sulfate chitosan (NOSC) and N-palmitoyl-O-sulfate chitosan (NPSC). The computational simulat…
Here we report a low-cost and "green" phosphine-free route for the size- and shape-controlled synthesis of high-quality zinc blende (cubic) ZnSe nanocrystals. To avoid the use of expensive and toxic solvents such as trioctylphosphine (TOP) or tributylphosphine (TBP), SeO(2) was dispersed in 1-octadecene (ODE) as a cha…
Cocconeis pseudomarginata W.Greg., Seminavis robusta Danielidis & D.G.Mann, Synedra gaillonii (Bory) Ehrenb. var. macilenta (Grunow) H.Perag., and Trachysphenia australis Petit var. rostellata Hust. from Bacillariophyceae were reported for the first time from Turkish coastal waters. Additionally, Synedra gaillonii var…
Purpose: The aim of this work was to evaluate the ability of a continuous repetitive corrugation and straightening (CRCS) technique in creating ultra fine grained copper-chromium strips as well as to determine the microstructure evolution and its influence on grain size refinement. Design/methodology/approach: Tests w…
Transition metal chlorides are reacted with lithium amide or ammonia under solvothermal conditions in benzene at temperatures up to 550 degrees C. The products are metal nitrides with particle sizes of a few nm. VN, NbN, CrN, MoN and WN form with a cubic rocksalt-type structure, whilst Ta(3)N(5) adopts the known ortho…
The anharmonic frequencies of fundamental vibrations, overtones, and combination vibrations, as well as the intensities of absorption bands in the IR spectrum of uracil, are calculated. The anharmonic quartic force field and the third-order dipole moment surface calculated by the DFT quantum-mechanical method (B3LYP/6…
A series of bis(TTF) donors containing aromatic linkers between the two TTF units has been synthesized in order to investigate on the electronic structure of the oxidized species from an experimental and theoretical point of view. A mono(TTF)-pyridine compound has been also prepared and characterized by single-crystal…
Most d(0) transition metal (TM) oxides exhibit anomalously large Born dynamical charges associated with off-centering or motion of atoms along the TM-O chains. To understand their chemical origin, we introduce "Wannier orbital overlap population" (WOOP) and "Wannier orbital position population" (WOPP) in terms of the…
Molecular dynamics (MD) and molecular mechanical (MM) analysis are carried out to provide reliable and accurate model for emeraldine base polyaniline. This study validate the forcefields and model with the physical and mechanical properties of the polyaniline. The temperature effects on non-bond energy, potential ener…
This feature article reviews some strategies and realizations for manipulating and tailoring the physical and chemical properties of zero dimensional (0-D) and one dimensional (1-D) nanomaterials as well as reveals the underlying mechanism. A series of high-resolution characterization techniques, such as high-resoluti…
Different density rhodium nanoparticulate substrates were fabricated by electron-beam physical vapor deposition in order to study the fluorescence of close-proximity fluorophores to the high thermally stable rhodium nanoparticles. We observed an apparently constant metal-enhanced fluorescence (MEF), when fluorophores…
Phenanporphodimethene (1) is a porphyrin analogue which has a dipyrromethene unit replaced by a 1,10-phenanthroline moiety. This modification effectively coverts a dianionic porphyrin to a monoanionic porphyrin analogue with a porphyrin-like N4 coordination sphere. The ligand 1 forms copper and nickel hexafluorophosph…
This paper gives an overview of the structural behaviour and design of aluminium structures exposed to fire conditions. Two design approaches are elaborated: the "traditional" approach that is mainly based on conventions and the fire safety engineering approach that is more based on physics. For the traditional approa…
In this paper, the diffusivities of copper in 15 nm thick Ru and Ru–C barrier layers are determined experimentally by using sheet resistance and X-ray diffraction measurements with the Cu/barrier/Si samples. By fitting the dependence of diffusivities on temperature, the activation energy for Cu diffusion in Ru–C film…
Inspired from nature materials with hierarchical structures, many functional materials are developed based on the templating synthesis method. This review will introduce the way to fabricate novel functional materials based on nature bio-structures with a great diversity of morphologies, in State Key Lab of Metal Matr…
In this work we present the analysis by aberration corrected electron microscopy of the formation of gold clusters based on the proton irradiation of larger nanoparticles (NP). Pentagonal arrays have been observed and energetic calculations have been performed in order to prove the stability of these materials.
A pair of enantiomers and one racemic compound have been constructed in the absence of any outside chiral influence. The enantiomers represent the first chiral configuration based on s-block cation linked 1D chain. Meanwhile, the racemic compound comprised of two chiral units shows centrosymmetric structure due to spa…
A new type of magnetic-fluorescent bifunctional nanocomposites, shuttle-shaped Mn2O3 decorated by ZnO nanocrystals has been successfully prepared by a facile two-step, wet-chemical strategy.