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。
The functions of aminotelopeptide and N-terminal cross-linking of collagen I were examined. Acetic acid-soluble collagen I (ASC) was purified from neonatal bovine skin and treated with three kinds of proteases. The amino acid sequencing analysis of the N terminus showed that ASC contained a full-length aminotelopeptid…
In-situ Raman spectroscopy has been used to characterize the transformation of amorphous zirconium oxyhydroxide to tetragonal ZrO 2 and then to monoclinic ZrO 2 in both the absence and presence of water vapor. In the absence of H 2 O vapor, t-ZrO 2 forms when zirconium oxyhydroxide is treated in air above 673 K and th…
Deposition conditions of cuprous oxide (Cu 2 O) thin films on glass substrates by reactive radio-frequency (rf) magnetron sputtering method were studied. The substrate temperature was found to be important for obtaining high-quality films, and the optimum substrate temperature was about 500°C. The Cu 2 O deposited at…
Two polymorphic malonato-bridged copper(II) complexes of formula ([Cu(bpy)(H2O)][Cu(bpy)(mal)(H2O)])-(ClO4)2 (1 and 2) (bpy = 2,2'-bipyridine and mal = malonate dianion) have been prepared and their structures solved by X-ray diffraction methods. Compound 1 crystallizes in the monoclinic space group P2(1)/a, with a =…
Although active targeting of anticancer drugs using magnetically responsive carriers is a very attractive treatment approach for solid tumors, successful results are limited. In particular, the therapeutic utility of intravenously administered magnetically responsive carriers has to date not been clearly established.…
The photoluminescence (PL) from 7- and 15-nm silica $({\mathrm{SiO}}_{2})$ nanoparticles induced both by ArF laser light $[{\ensuremath{\lambda}}_{\mathrm{exc}}=193\mathrm{nm}(6.4\mathrm{eV}),$ ${\ensuremath{\tau}}_{L}=15\mathrm{ns}]$ and by Nd:YAG (yttrium-aluminum-garnet) laser light $[{\ensuremath{\lambda}}_{\mathr…
The decomposition of potassium iodide to liberate iodine, the model reaction to study cavitational effects, has been carried out under different cavitational conditions. The effect of various parameters (inlet pressure, flow geometry of orifice plates) on the iodine liberation rate has been studied. It is found that t…
A novel and general approach to prepare polyolefin-clay hybrids by using the maleic anhydride modified polyolefins and organophilic clay during melt-blending was reported. The silicate layers of the clay were exfoliated and homogeneously dispersed at the monolayers in the hybrids. The hybrids exhibited remarkable rein…
The previously unknown titanium(IV)-containing mu-hydroxo dimeric heteropolytungstate (Bu4N)7[(PTiW11O39)2-OH] (TBA salt of H1) has been synthesized, starting from H5PTiW11O40, and characterized by elemental analysis, multinuclear (31P, 17O, 183W) NMR, IR, FAB-MS, cyclic voltammetry, and potentiometric titration. 31P…
We derive a mesoscopic modeling and simulation technique that is very close to the technique known as dissipative particle dynamics. The model is derived from molecular dynamics by means of a systematic coarse-graining procedure. This procedure links the forces between the dissipative particles to a hydrodynamic descr…
Highly ordered, near-single-crystal lamellar films of a triblock copolymer (polystyrene−polybutadiene−polystyrene, PS/PB/PS) were used to study the deformation mechanism of a structure of alternating glassy−rubbery layers, at different orientations of the deformation axis relative to the layer normal. Synchrotron radi…
Perlucin isolated from abalone nacre consists of 155 amino acids including a glycosylated asparagine. The sequence of the first 130 amino acids shows a high similarity to the C-type carbohydrate-recognition domains of asialoglycoprotein receptors and other members of the group of C-type lectins but also a weaker simil…
We derive a formula, useful for first-principles calculations, which relates the free energy of an oxide/metal interface to the free energies of surfaces and the work of separation of the interface. We distinguish the latter mechanical quantity from the thermodynamic work of adhesion, and we describe explicitly how bo…
BACKGROUND: Preclinical and clinical studies indicate that deproteinized cancellous bovine bone is osteoconductive and may be osteopromotive. Previous studies using commercial preparations failed to demonstrate the presence of protein, implicating bone-mineral composition and 3-dimensional structure as reasons for cli…
Indexing of a powder diffraction pattern is still a critical point in procedures aiming at solving crystal structures from powder data. New code has been associated to the program TREOR 90 in order to define an efficient peak search procedure, to modify the crystallographic decisions coded into TREOR 90 to make it mor…
We investigated surface selection and adhesion of motile zoospores of a green, macrofouling alga (Enteromorpha) to self-assembled monolayers (SAMs) having a range of wettabilities. The SAMs were formed from alkyl thiols terminated with methyl (CH(3)) or hydroxyl (OH) groups or mixtures of CH(3)- and OH-terminated alky…
${\mathrm{CaTiO}}_{3}$ has a static dielectric constant that extrapolates to a value greater than 300 at zero temperature. We investigate the origin of this large dielectric response on a microscopic level, using first-principles plane-wave pseudopotential density functional theory calculations. The electronic dielect…
Suspensions of magnetic particles with diameters in the nanometer range exhibit longterm sedimentation stability as well as the possibility of magnetic field induced control of their properties and flow. One of the most famous field induced effects is the change of viscosity of the fluids due to the action of magnetic…
A series of low and constant viscosity elastic liquids are constructed and are studied rheologically. Steady shear viscosity and normal stresses, dynamic properties, and an apparent extensional viscosity are measured using well-established techniques. The rheological characteristics of the solution are used to help ex…