Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
Liquid−liquid equilibria (LLE) in ternary mixtures of water + dipotassium oxalate + alcohol (2-propanol, 1-propanol, 2-methyl-2-propanol, and 2-butanol) have been studied at 298.15 K and atmospheric pressure. The experimental binodal and tie line data were determined at 298.15 K. The binodal curves were correlated usi…
We have developed an efficient strategy for the non-covalent functionalization of multi-walled carbon nanotubes (MWCNTs) which allows a biomimetic presentation of carbohydrates on their surface by π-π stacking interactions. The strategy is based on the use of sugar-based amphiphiles functionalized with tetrabenzo[a,c,…
Air-filled lysozyme microbubbles can be synthesized in an aqueous medium by emulsification followed by the cross-linking of protein molecules under high-intensity ultrasound. Here, we report on the tailoring of the properties of the ultrasonically synthesised microbubbles using new procedures. The efficiency of format…
We report a detailed experimental study of maghemite nanoparticles, with sizes ranging from 1.6 to 6 nm, synthesized inside a biological mould of apoferritin. The structural characterization of the inorganic cores, using TEM and x-ray diffraction, reveals a low degree of crystalline order, possibly arising from the nu…
We use density functional theory with periodic boundary conditions to investigate diffusion of Al, O, Pt, Hf, and Y on the α-Al2O3(0001) surface as a simple model to obtain insight into possible diffusion mechanisms occurring at alumina grain boundaries (GBs) in thermal barrier coatings (TBCs). We calculate diffusion…
This paper examines the limits of accuracy in reporting isolated product yields (i.e., recovery of total mass from chromatography or extractions) as well as ratios of isomers determined by HPLC, GC, or NMR methods. Attention is directed to the magnitude of errors encountered in the HPLC or GC measurements of such rati…
We previously presented evidence that transmembrane domain (TM) IV and TM X-XI are important for inhibitor binding and ion transport by the human Na(+)/H(+) exchanger, hNHE1 (Pedersen, S. F., King, S. A., Nygaard, E. B., Rigor, R. R., and Cala, P. M. (2007) J. Biol. Chem. 282, 19716-19727). Here, we present a structur…
In order to further develop the understanding of photopolymer materials, a more complete physical model has become necessary. In particular, a more accurate description of the photochemical mechanisms occurring during the photopolymerization processes is needed. Generally, in photopolymers, the photosensitizer absorbs…
Abstract Saturated branched‐chain fatty acids (sbc‐FAs) are found as minor constituents in several natural fats and oils. Sbc‐FAs are of interest since they have lower melting points than their linear counterparts and exhibit good oxidative stability; properties that make them ideally suited in a number of application…
In contrast to completely open systems, laterally confined domains can sustain localized, truly trapped modes with nominally zero radiation loss. These discrete resonant modes cannot be excited linearly by the continuous propagating duct modes due to symmetry constraints. If the symmetry of the geometry is broken the…
The removal of heavy metals, such as Cu(II), Cd(II) and Cr(III) from aqueous solution was studied using Chorfa silt material (Mascara, Algeria). The main constituents of silt sediment are quartz, calcite and mixture of clays. The experimental data were described using Freundlich, Langmuir, Dubinin–Radushkevich (D–R) a…
Dendritic Pd with corrugated surfaces, obtained by a novel AC technique, exhibits an exceptionally high catalytic activity for the oxidation of formic acid because of the presence of a high density of surface steps. The formation of twinned dendrites leads to a predominance of exposed 111 facets with a high density of…
A nanocomposite of highly conductive C60 and insulating LiF (C60:LiF) is shown to function as both a highly effective passivation layer and hole blocking layer in polymer bulk heterojunction solar cells. C60:LiF composites with up to ≈80% LiF concentration dramatically increase the device stability and power conversio…
Abstract Structural and energetic properties of cation bridges in soil supramolecular aggregates were studied by means of a model system in which two carboxylate groups connected to aliphatic oligomer chains were bound by Ca 2+ and Na + , respectively. Wetting/drying conditions in soils because of environmental change…
UV irradiation of DNA can lead to the formation of mutagenic (6-4) pyrimidine-pyrimidone photolesions. The (6-4) photolyases are the enzymes responsible for the photoinduced repair of such lesions. On the basis of the recently published crystal structure of the (6-4) photolyase bound to DNA [Maul et al. 2008] and empl…
The dehydrated aluminum form of the metal−organic framework compound MIL-53 shows a temperature-driven phase transition with pronounced structural hysteresis as recently shown by neutron diffraction and scattering experiments ( Liu et al. J. Am. Chem. Soc. 2008, 130, 11813). Thereby, the structure of the corner-sharin…
We used AFM to investigate the interaction of polyelectrolytes such as ssDNA and dsDNA molecules with graphene as a substrate. Graphene is an appropriate substrate due to its planarity, relatively large surfaces that are detectable via an optical microscope, and straightforward identification of the number of layers.…
Catastrophic phase inversion (CPI) was used as a low-energy emulsification method to prepare oil-in-water (O/W) nanoemulsions in a lipid (Acetem)/water/nonionic surfactant (Tween 60) system. CPIs in which water-in-oil emulsions (W/O) are transformed into oil-in-water emulsions (O/W) were induced by changes in the phas…
For finite-temperature micromagnetic simulations the knowledge of the temperature dependence of the exchange stiffness plays a central role. We use two approaches for the calculation of the thermodynamic exchange parameter from spin models: (i) based on the domain-wall energy and (ii) based on the spin-wave dispersion…
One approach to estimating the "chemical tractability" of a candidate protein target where we know the atomic resolution structure is to examine the physical properties of potential binding sites. A number of other workers have addressed this issue. We characterize ~290,000 "pockets" from ~42,000 protein crystal struc…