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。
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTProtein-Sized Quantum Dot Luminescence Can Distinguish between "Straight", "Bent", and "Kinked" OligonucleotidesRahina Mahtab, Jessica P. Rogers, and Catherine J. MurphyCite this: J. Am. Chem. Soc. 1995, 117, 35, 9099–9100Publication Date (Print):September 1, 1995Publication…
Abstract Monte Carlo modeling of electron‐solid interactions requires a detailed and accurate supply of experimental data on which to base its physics and against which to test its predictions. To meet this need, a collection of data—comprising measurements of secondary and backscattered electron yields, electron stop…
Two approaches have been adopted in attempting to determine the strength of the one-phonon infrared absorption by the B nitrogen aggregate in diamond. On the one hand, we have heat treated purely type IaA specimens with known infrared absorption strengths (and thus also known nitrogen concentrations) to bring about pa…
Jute fiber is an important agricultural product. It is one of the most common natural fibers in Third World countries such as India, China, Bangladesh, etc. The jute industry has special importance in the economy of India and continues to be a major traditional earner of foreign exchange. However, it is facing tough c…
Structural evidence for the microsegregation of alkalis in oxide glasses is reviewed and the implications for ionic transport, viz., nearest-neighbor hopping, cooperative and correlation effects, are considered. Distinctions are drawn between the hopping of alkalis in silicate glasses, where changes in the configurati…
Biosynthetically directed fractional 13C labeling of proteinogenic amino acids is achieved by expression of proteins on a minimal medium which contains a mixture of [13C6]glucose and glucose with natural isotope abundance as the sole carbon source. Subsequent hydrolysis of the proteins yields the free amino acids. The…
A homogeneous assay method based on the long-lived fluorescence of rare earth cryptates and amplification by nonradiative energy transfer has been developed for immunoassays. The principles of the assay allow a double discrimination of the emitted signal through spectral and temporal selectivity. The cage structure of…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPreparation of Rodlike Gold Particles by UV Irradiation Using Cationic Micelles as a TemplateKunio Esumi, Keiichi Matsuhisa, and Kanjiro TorigoeCite this: Langmuir 1995, 11, 9, 3285–3287Publication Date (Print):September 1, 1995Publication History Published online1 May 2002P…
Biosynthetically directed fractional 13C labeling of proteinogenic amino acids is achieved by expression of proteins on a minimal medium which contains a mixture of [13C6]glucose and glucose with natural isotope abundance as the sole carbon source. Subsequent hydrolysis of the proteins yields the free amino acids. The…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAnalysis of Electronic Transitions as the Difference of Electron Attachment and Detachment DensitiesMartin Head-Gordon, Ana M. Grana, David Maurice, and Christopher A. WhiteCite this: J. Phys. Chem. 1995, 99, 39, 14261–14270Publication Date (Print):September 1, 1995Publicati…
The preparation of ceramic materials from preceramic compounds provides a means for the synthesis of new materials which cannot be obtained by conventional methods. An example is shown in the figure, which shows carbon‐fiber‐reinforced silicon carbide coated with silicon carbonitride prepared by dip‐coating the substr…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTA Simple Method for the Production of a Two-Dimensional, Ordered Array of Small Latex ParticlesR. Micheletto, H. Fukuda, and M. OhtsuCite this: Langmuir 1995, 11, 9, 3333–3336Publication Date (Print):September 1, 1995Publication History Published online1 May 2002Published in…
Abstract The role of hydrogen bonding in the formation or stabilization of liquid crystalline phases has only recently been appreciated. Following the first, wellestablished examples of liquid crystal formation from the dimerization of aromatic carboxylic acids, through hydrogen bonding, several classes of compounds h…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis and properties of new poly(dimethylsiloxane) nanocompositesShelly D. Burnside and Emmanuel P. GiannelisCite this: Chem. Mater. 1995, 7, 9, 1597–1600Publication Date (Print):September 1, 1995Publication History Published online1 May 2002Published inissue 1 September…
We carry out a completely first-principles study of the ferroelectric phase transitions in ${\mathrm{BaTiO}}_{3}$. Our approach takes advantage of two features of these transitions: the structural changes are small, and only low-energy distortions are important. Based on these observations, we make systematically impr…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNew Sensitizer-Modified Calix[4]arenes Enabling Near-UV Excitation of Complexed Luminescent Lanthanide IonsFrank J. Steemers, Willem Verboom, David N. Reinhoudt, Erik B. van der Tol, and Jan W. VerhoevenCite this: J. Am. Chem. Soc. 1995, 117, 37, 9408–9414Publication Date (P…
A method for solving small-strain plasticity problems with plastic flow represented by the collective motion of a large number of discrete dislocations is presented. The dislocations are modelled as line defects in a linear elastic medium. At each instant, superposition is used to represent the solution in terms of th…
Mesoporous silica molecular sieves have been prepared by the hydrolysis of tetraethylorthosilicate in the presence of low-cost, nontoxic, and biodegradable polyethylene oxide (PEO) surfactants, which act as the structure-directing (templating) agents. This nonionic, surfactant-neutral, inorganic-precursor templating p…
The review deals with the characteristic features of the formation of certain complex perovskite-like oxides. In the crystal structures of these compounds, it is possible to differentiate fragments with different structures, which alternate along the three-fold or four-fold axis of the perovskite sublattice. This appr…
In recent times, optical diffraction and reflection from periodically twisted liquid crystalline media have attracted a lot of attention. The important developments in this area have been considered here.