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。
This article is an account of the birth and evolution of surface science as an interdisciplinary research area. Surface science emanated from the confluence of concepts and tools in physics and chemistry with technological innovations that made it possible to determine the structure and properties of surfaces and inte…
In this work we report the synthesis and characterization of a new nanostructured platinum/tin/telluride inorganic/surfactant composite. The material is synthesized from soluble SnTe(4)(4-) clusters and is shown to have well-defined nanometer scale periodicity along with unique optical properties. Small-angle X-ray sc…
The reaction of Au(CH 3 ) 2 (acac) with the partially dehydroxylated surface of γ-Al 2 O 3 (calcined at 673 K) and the subsequent formation of supported gold clusters upon treatment of the supported species in He at various temperatures and 1 atm were investigated with infrared (IR) and extended X-ray absorption fine…
An analytical description for helical twisting in chiral liquid crystals is derived, which explores the correlation between the macroscopic properties of a liquid crystal and the parameters of single molecules. This theory is based on a simple model of a spiral-like rigid molecules that possess a limited number of par…
The aim of this paper is to review the actual data on the chemical bond in binary and mixed oxides. The electronegativity ( χ M ) and the acidity p a scales are the most significant semi‐empirical concepts for predicting the trend of bonding character in iono‐covalent oxides. A satisfactory correlation between the dat…
Using the controlled precipitation of silicic acid on functionalized polystyrene latexes, nanometer sized silica-coated spheres could be prepared and subsequently modified to allow dispersion in non-aqueous solvents; removal of the interior polymer by calcination resulted in the formation of hollow silica spheres.
Lymphatic distribution of interstitially injected poloxamer 407-coated nanospheres (45 nm in diameter) is controlled by surface configuration of the ethylene oxide (EO) segments of the adsorbed copolymer. At low poloxamer surface coverage, EO tails spread laterally on a nanosphere surface and assume a 'flat or mushroo…
General bonding principles are used to predict the structure of individual nanocrystals in nanocrystalline materials with semiionic bonding. The relationship between the general principles and actual nanocrystal structures is demonstrated using titanium dioxide in the anatase form. The proposed nanocrystals simultaneo…
Heteropolynuclear organometallic compounds have been constructed by using two kinds of ferrocene-based ligands, 1,1'-ferrocenedicarboxylic acid (H(2)L(1)) and ferrocenecarboxylic acid (HL(2)). Reactions the ligand H(2)L(1) with copper(II) and nickel(II) salts, in the presence of pyridine, give a tetranuclear Cu(2)Fe(2…
We examine two recently proposed models of charge ordering (CO) in the nominally $\frac{1}{4}$-filled, quasi-one-dimensional (1D) organic charge-transfer solids (CTS). The two models are characterized by site charge density ``cartoons'' $\dots{}1010\dots{}$ and $\dots{}1100\dots{},$ respectively. We use the Peierls-ex…
Abstract Paraffin oil has been encapsulated using complex coacervation of gelatin and Arabic gum in the presence of a surfactant. Addition of an oppositely charged surfactant to a polyelectrolyte markedly increases the yield of the process. We report a two‐layer encapsulation of paraffin oil, based on a primary layer…
Abstract Aqueous dispersions of polystyrene latexes encapsulating a copper phthalocyanine blue pigment were formulated using the miniemulsion polymerization technique. The organic pigment was first suspended into the monomer phase, and the resulting oily suspension was subsequently converted into stable miniemulsion d…
In this work, we develop a new residue-based protein−surface interaction potential model. With this model, the adsorption and orientation of two antibodies, IgG1 and IgG2a, are studied by Monte Carlo simulations. Effects of surface charge density and sign, and solution ionic strength are examined in our simulations. S…
A new paradigm for nonlinear doping-controlled ion transport in soft condensed matter is presented, where the mobility of a minority "probe" ion is controlled by majority "salt" ion. The class of materials to which this paradigm applies is represented by ultrathin films of polyelectrolyte complexes, or multilayers. In…
We investigated the electronic structures of the perovskite-type $4d$ transition-metal oxides $\mathrm{Sr}M{\mathrm{O}}_{3}$ $(M=\mathrm{Zr},$ Mo, Ru, and Rh) using their optical conductivity spectra $\ensuremath{\sigma}(\ensuremath{\omega}).$ The interband transitions in $\ensuremath{\sigma}(\ensuremath{\omega})$ are…
Ferromagnetic semiconductors promise the extension of metal-based spintronics into a material system that combines widely tunable electronic, optical, and magnetic properties. Here, we take steps towards realizing that promise by achieving independent control of electronic doping in the ferromagnetic semiconductor (Ga…
We exploit ferromagnetic imprinting to create complex laterally defined regions of nuclear spin polarization in lithographically patterned MnAs/GaAs epilayers grown by molecular beam epitaxy (MBE). A time-resolved Kerr rotation microscope with approximately 1 micron spatial resolution uses electron spin precession to…
The Surface Evolver was used to calculate the equilibrium microstructure of random monodisperse soap froth, starting from Voronoi partitions of randomly packed spheres. The sphere packing has a strong influence on foam properties, such as E (surface free energy) and <f> (average number of faces per cell). This means t…
We present a dynamic molecular self-assembly system, driven mostly by π−π molecular orbital interactions. The formation of such self-organized dynamic systems is characterized with absorption, fluorescence, and NMR spectroscopies as well as dynamic light scattering. Our results demonstrate that proper design of molecu…
We report a novel wet-chemical approach at 180 degrees C for the synthesis of monodispersed ZnO nanorods with high single-crystallinity. The method has successfully brought the ZnO nanorod diameter from a reported 150 nm down to the 50 nm regime in this work. The aspect ratio of the synthesized nanorods achieved is ex…