Materials Literature
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Abstract Perfect colouring of isonemal fabrics by thin striping of warp and weft and the closely related topic of isonemal prefabrics that fall apart are reconsidered and their relation further explored. The catalogue of isonemal prefabrics that fall apart is extended to order 20 for those of even genus.
Abstract Raman spectra of individual double wall carbon nanotubes(DWs) on silica show a splitting of the G band due to contributions of the inner and outer tube when using a excitation energy in resonance with the inner metallic tube and outer semiconducting tube. The spectral splitting indicates strong coupling while…
Adipose tissue is extensively used in facial plastic surgery as a soft tissue filler for small-to-large facial defects. Variable results with autologous fat grafting and lipoinjection has led to interest in alternative forms of adipose tissue, including tissue engineered adipose tissue. Tissue engineering combines cel…
One layer of self-assembled InMnAs quantum dots with InGaAs barrier was grown on high-resistivity (100) p-type GaAs substrates by molecular beam epitaxy (MBE). A presence of ferromagnetic structure was confirmed in the InMnAs dilute magnetic quantum dots. The one layer of self-assembled InMnAs quantum dots was found t…
A tunable photonic crystal (PhC) based on the capillary action of liquid is demonstrated in this work. The porous silicon-based photonic crystal (PSiPhC) features periodic porosity and is fabricated by electrochemical etching on 6" silicon wafer followed by hydrophobic modification on the silicon surface. The capillar…
Kantiges Oxid: DFT-Rechnungen ergeben die spontane Bildung eines stabilen eindimensionalen Oxids entlang der Kante von Goldclustern, die auf einem silberfixierten ultradünnen MgO-Film abgeschieden sind. Die Bildung dieses Kantenoxids ist für die CO-Oxidation bedeutsam. Au gelb, grau; Mg grün; O rot.
Nanotechnology is the manipulation of materials or devices at the nanometer scale (one billionth of a meter), that is, at the level of individual atoms and molecules. e word “nano” is derived from the Greek word for dwarf. e timescale of nanotechnology history began with a talk given in 1959 by physicist Richard Feynm…
In 1959, Nobel award winner Richard Feynman rst proposed the seminal idea of nanotechnology by suggesting the development of molecular machines. Ever since, the scienti c community has investigated the role that nanotechnology can play in every aspect of society. e intrigue of nanotechnology comes from the ability to…
Abstract Ultra‐high curvature single‐walled carbon nanotubes (SWCNTs) with diameters down to 0.37 nm were prepared by transformation of FeCp2 peapods to double‐walled CNTs (DWCNTs). Results from resonance Raman scattering and high resolution transmission electron microscopy (TEM) were compared to calculations on the m…
Graphene is a layer of crystalline carbon that just one atom thick (Novoselov et al. 2004). Graphene is a two-dimensional crystal with a honeycomb structure. e crystalline structure of graphene results in a very unique energy dispersion law (Wallace 1947). Namely, the low-energy excitations are described by the Dirac…
Nanostructures can be found almost everywhere in nature. A recent review article is therefore, entitled “Live as a Nanoscale Phenomenon” (Mann 2008). On one hand, the understanding of the underlying sophisticated biochemical and biophysical mechanisms is of central importance for fundamental biological research. On th…
We report on the computational modelling of the evolution process of initially spherical diamond nanoclusters with diameters ≈1.3 nm in vacuo under the influence of thermal annealing. The transformation into recognizable chiral core-shell clusters occurs for temperatures of annealing exceeding 1000 K. The implications…
A fast-chemically capping method in aqueous solution was developed to synthesize CdS and CdS : Ag luminescent nanoparticles and particles with sizes between 2–4 nm. The achieving of well-dispersed and narrow-sized particles in colloidal solution and also, high stability of them using mercaptoethanol (ME) as a capping…
Abstract Five CuII Schiff‐base complexes, three mononuclear {[Cu(rslysH)·(H2O)2]·2H2O·ClO4 (1); [Cu(rslysH)Cl] (2); [Cu(slysH)(H2O)Cl] (3) rslys and slys = 6‐amino‐2‐[(2‐hydroxybenzylidene)amino]hexanoate} and two dinuclear {[Cu2(rslysH)2(CH3OH)2]·(H2O)2(NO3)2 (4); [Cu2(slysH)2(NO3)2]·(H2O)3 (5)}, are reported herein.…
Freigabe ab 8: Reversibles pH-kontrolliertes Schalten eines Singulettsauerstoff-Sensibilisators wird erreicht, wenn eine i-Motiv-DNA-Sequenz den Abstand zwischen einem Singulettsauerstoff-Sensibilisator und einem Quencher steuert (siehe Bild). Bei pH<5 ist das i-Motiv stabil und der Singulettsauerstoff-Sensibilisator…
The engineering of emulsion structures has attracted the interest of many research laboratories over the last few years due to increasing industrial demand for colloidal matrices that could be used as bio-microreactors in biotechnology, vehicles for delivering and controlled release of lipophilic (or hydrophilic) acti…
Sizes of cavities and their packing schemes in selected zeolites and clathrasils were studied by means of least squares fitting of circumscribed spheres to them. Resulting packing of spheres of different diameters was analyzed by the coordinates of their centers, their volumes and sphericity, and interpreted by compar…
The title compound, dicalcium nonaoxidodistannate(IV)dialuminate, is the second example which crystallizes in the isotypic structure of a pyroxene silicate, Na(2)Ti(2)Si(2)O(9) (ramsayite). (∞) (1)[Sn(2)O(8)] chains and pyroxene-type (∞) (1)[Al(2)O(6)] chains are formed along the b axis by sharing O atoms. The Ca atom…
The goal of this work was to prepare structurally well-defined manganese complexes on high-area MgO powder by vapor deposition of Mn 2 (CO) 10 . The supported species were characterized by infrared (IR), electron paramagnetic resonance (EPR), and X-ray absorption spectroscopies. The results show that when the manganes…
Time-domain spectroscopy, which probes the dynamics of the electronic states near Fermi surface that are associated with superconductivity, has proven to be a powerful method for providing insights into the fundamental nature of both pseudogap and superconducting gap. This study shows that the unique $T\text{\ensurema…