Materials Literature
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We compared the hydrogen uptake weight percentages (wt.%) of different carbonized materials, before and after modification, for their application in hydrogen storage at room temperature. The Sievert's method [T.P. Blach, E. Mac, A. Gray, J. Alloys Compd. 446-447, 692 (2007)] was used to measure hydrogen uptake values…
The title compound, tetrasodium cobalt aluminium hexaarsenate, Na(4)Co(7-x)Al(2/3x)(AsO(4))(6) (x = 1.37), is isostructural with K(4)Ni(7)(AsO(4))(6); however, in its crystal structure, some of the Co(2+) ions are substituted by Al(3+) in a fully occupied octahedral site (site symmetry 2/m) and a partially occupied te…
For the last two decades, there has been a growing interest in the development of the chemistry of mixed-metal bi-and polynuclear alkoxo and alkoxo-organometallic complexes. Such interest derives from their fascinating structural chemistry, interesting catalytic properties, and high potential for industrial applicatio…
The Symposium on Nanotoxicology: Mechanisms and Effects and Forum on Rationale of Genotoxicity Testing of Nanomaterials, held on 21 September 2009, in conjunction with the 10th International Confer...
We present a study of the electronic structure and derived properties of polyfurane (PFu), polypyrrol (PPy), and polythiophene (PTh). Two spatial arrangements are considered: trans chain (tc-PFu, tc-PPy, tc-PTh) and cis α-helical (α-PFu, α-PPy, α-PTh). Even at the small sizes considered here, helical conformations app…
Poly(3-hydroxybutyrate) (PHB) is a well known microbial and biodegradable polymer, which is accumulated and stored by prokaryotic microorganisms at levels up to 90% of their cellular dry weight PHB has been attracting much interest from researchers not only as an environmentally compatible thermoplastic, but also as a…
Zu Ketten angeordnet und mit einem hoch vernetzten Polymer überzogen wurden kolloidale Fe3O4-Nanokristallcluster mit ungefähr 200 nm Durchmesser in einer Eintopfsynthese. Die Nanoketten zeigen erhöhte Wasserstoff-Relaxationszeiten T2, lassen sich leicht in Wasser dispergieren und mit einem Magnet manipulieren und sind…
Electrospinning is a well‐established method for synthesizing microdimensional and one‐dimensional (1D) fibers from a large variety of precursor solutions. Initially, research focused on the production of polymer nanofibers, but in recent years, a large variety of oxide ceramics have been produced through electrospinn…
Abstract For the practical application of second‐order NLO materials, not only a high molecular quadratic hyperpolarizability β but also good thermal, chemical, and photochemical stabilities are required. Most of the state‐of‐the‐art chromophores with high NLO response cannot be put to use because they are photochemic…
A modified alkoxide‐hydroxide sol‐precipitation method, combining the sol–gel method and hydrothermal method, has been developed to synthesize monodispersed barium titanate with narrow size distributions. The key point of this method is the synthesis of ultrafine titanium hydroxide precipitate precursor by controlling…
The purpose of this work is to calculate the vibrational modes of an elastically anisotropic sphere embedded in an isotropic matrix. This has important application to understanding the spectra of low-frequency Raman scattering from nanoparticles embedded in a glass matrix. First some low-frequency vibrational modes of…
A rare isomer of the {Mo(8)O(28)}(8-) anion has been trapped from an acidified aqueous solution of molybdate by using the {Mo(2)O(2)S(2)}(2+) oxothio cation as the linker and isolated as a part of a unique macrocyclic anion, which consists of four isopolyoxomolybdate fragments {Mo(8)O(28)} bridged by four {Mo(2)O(2)S(…
A method for synthesizing inorganic-organic layered compounds is proposed using a biphasic liquid-liquid system in one pot. Layered basic zinc benzoate (LBZB) compounds were chosen, and their formation was investigated starting from a xylene-water system. In a typical synthesis, a xylene phase dissolving benzoic acid…
The ATP-binding cassette transporter system ThiXYZ transports N-formyl-4-amino-5-(aminomethyl)-2-methylpyrimidine (FAMP), a thiamin salvage pathway intermediate, into cells. FAMP is then converted to 4-amino-5-(hydroxymethyl)-2-methylpyrimidine (HMP) and recycled into the thiamin biosynthetic pathway. ThiY is the peri…
We demonstrate solution-processed photodetectors composed of heavy-metal-free Si nano/micro particle composite. The colloidal Si particles are synthesized by electrochemical etching of Si wafers, followed by ultra-sonication to pulverize the porous surface. With alkyl ligand surface passivation through hydrosilylation…
Mixed alkali borosilicate glasses show a complex relationship between composition and structure. These relationships are often difficult to fully investigate using standard laboratory methods. Therefore, we present here a systematic molecular dynamics (MD) study of composition–structure relationships in sodium lithium…
Raman-scattering spectroscopy on the microscale is proposed as a method to study the distribution of defects and existing vacancies in lead zirconate titanate (PZT) fibres during industrial processes to monitor the volumetric structural order within the fibre and to estimate the spatial phase transition degree from rh…
In this paper, the adsorption behavior of plasma proteins on the surface of ZnO thin films prepared by radio frequency (RF) sputtering under different sputtering powers was studied. The microstructures and surface properties of the ZnO thin films were investigated by x-ray diffraction (XRD), scanning electron microsco…
La 0.4 Ni 0.2 Co 3.8 Sb 12 filled skutterudite compound was successfully prepared via the route of mechanical alloying and hot pressing (MA‐HP). Single‐phase filled skutterudite can be obtained when the mechanically alloyed powders is hot pressed for 2 h at a temperature higher than 550°C. Prolonging the hot pressing…
Plastic and Reconstructive Surgery: October 2010 - Volume 126 - Issue - p 97 doi: 10.1097/01.prs.0000388820.96542.6e