Ace M. Baty、Pam K. Leavitt、Christopher A. Siedlecki 等 7 位作者1997-10-01Langmuir
The adsorption of mussel adhesive protein (MAP) from the marine mussel Mytilus edulis has been investigated on polystyrene (PS) and poly(octadecyl methacrylate) (POMA) surfaces using angle dependent X-ray photoelectron spectroscopy (XPS) and atomic force microscopy (AFM). AFM images previously published in the dehydra…
Polymer Surface Interaction StudiesForce Microscopy Techniques and ApplicationsAdhesion, Friction, and Surface Interactions
F. Rivadulla、M. C. Vergara、M. Carmen Blanco 等 5 位作者1997-10-01The Journal of Physical Chemistry B
We report the optical properties of nanosized (≈4 nm) platinum particles synthesized in water-in-oil (w/o) microemulsions. The particles present a maximum at 220−256 nm, being highly position dependent upon the reaction medium. The aging of solutions causes cluster formation, whose absorption spectrum is rather differ…
Gold and Silver Nanoparticles Synthesis and ApplicationsIron oxide chemistry and applicationsLaser-Ablation Synthesis of Nanoparticles
Silvio Aime、Alessandro Barge、Alain Borel 等 8 位作者1997-10-01Inorganic Chemistry
The structures and intramolecular dynamics of [Ln(EGTA)(H 2 O)] - (Ln = La 3+, Ce 3+, Pr 3+, Nd 3+, Sm 3+, Eu 3+, Gd 3+, Tb 3+, Dy 3+, Ho 3+, Er 3+, Tm 3+, Yb 3+, Lu 3+ and EGTA 4 - = 3,12-bis(carboxymethyl)-6,9-dioxa-3,12-diazatetradecanedioate(4−)) in aqueous solution have been investigated by variable temperature 1…
Lanthanide and Transition Metal ComplexesAdvanced NMR Techniques and ApplicationsNMR spectroscopy and applications
Makoto Kuwabara、Hirofumi Matsuda、Natsuko KURATA 等 4 位作者1997-10-01Journal of the American Ceramic Society
Definite increases in the Curie point (T C ) of undoped and lanthanum‐ (La‐) doped (<0.5 at.%) barium titanate (BaTiO 3 ) ceramics sintered at elevated temperatures in the range of 1300°‐1450°C were observed. Both undoped and 0.3 at.% La‐doped BaTiO 3 (chosen as a typical doping concentration to yield semiconductin…
Ferroelectric and Piezoelectric MaterialsMultiferroics and related materialsMicrowave Dielectric Ceramics Synthesis
Shigenobu Hayashi1997-10-01Clays and Clay Minerals
Abstract Motion of the guest molecules in kaolinite/dimethyl sulfoxide (DMSO) intercalation compounds Al 2 Si 2 O 5 (OH) 4 ∙(CH 3 ) 2 SO has been studied by means of solid-state nuclear magnetic resonance (NMR) in the temperature range between 300 and 380 K, which is just below the evolution temperature. The 13 C magi…
Glass properties and applicationsClay minerals and soil interactionsNMR spectroscopy and applications
G. Stehle、Andreas Wunder、Hannsjörg Sinn 等 9 位作者1997-10-01Anti-Cancer Drugs
Linking chemotherapeutic drugs to a macromolecular carrier system may enhance tumor targeting, reduce toxicity and overcome drug resistance mechanisms. As an elementary model to evaluate the pharmacological properties of macromolecular drug carrier systems we chose rat serum albumin (RSA) for carrier and methotrexate…
Nanoparticle-Based Drug DeliveryMonoclonal and Polyclonal Antibodies ResearchChronic Myeloid Leukemia Treatments
S. A. Stronach、F. P. Glasser1997-10-01Advances in Cement Research
A model for the CaO—SiO 2 —H 2 O system at 25°C is proposed, and based upon this, more complex systems including the effect of SO 4 2- , Cl - , CO 3 2- , Na + and K + on phase relations and solubilities in the title system have been calculated by thermodynamic modelling. At sea-water concentrations of NaCl, mixed sea-…
Concrete and Cement Materials ResearchCalcium Carbonate Crystallization and InhibitionCO2 Sequestration and Geologic Interactions
Thomas Wideman、Enriqueta Cortez、Edward E. Remsen 等 6 位作者1997-10-01Chemistry of Materials
Three new series of processible polymeric precursors (PIN−HPZ, BCP−HPZ, DEB−HPZ) to SiNCB ceramic materials have been synthesized by reaction of hydridopolysilazane (HPZ) with the monofunctional boranes, pinacolborane (PIN−H), 1,3-dimethyl-1,3-diaza-2-boracyclopentane (BCP−H), and 2,4-diethylborazine (DEB−H). Polymers…
Advanced ceramic materials synthesisOrganoboron and organosilicon chemistryChemical Synthesis and Characterization
Sasankasekhar Mohanta、Kausik K. Nanda、Rüdiger Werner 等 7 位作者1997-10-01Inorganic Chemistry
A binuclear tetraprotonated macrocyclic complex [Mg(2)(L(2)-H(4))(NO(3))(2)](NO(3))(2).6H(2)O (1) has been obtained by template condensation of 4-methyl-2,6-diformylphenol and 1,2-diaminoethane in the presence of magnesium acetate and nitrate. Complex 1 on reduction with NaBH(4), followed by the removal of magnesium,…
Magnetism in coordination complexesLanthanide and Transition Metal ComplexesMetal-Catalyzed Oxygenation Mechanisms
Anthony Noel James、David A. Fullerton、R. A. Drake1997-10-01Journal of Geotechnical and Geoenvironmental Engineering
Five Victorian reservoirs of brick pillar and arch construction were renovated using geosynthetic clay liners (also called bentonite/geosynthetic composites) (GCL) as roof sealing materials. The GCL was predominantly sodium bentonite and contained some 2% of calcite. GCLs were laid on leveled, original puddled clay pa…
Geotechnical Engineering and Soil StabilizationClay minerals and soil interactionsLandfill Environmental Impact Studies
Frank J. Feher、Joseph J. Schwab、Daravong Soulivong 等 4 位作者1997-10-01Main Group Chemistry
The hydrolytic condensation of PhSiCl3 (H2 O/acetone, 0–5°C, 18 h) precipitates cis-cis-cis-[(C6 H5 )4 Si4 O4 (OH)4 ] (5a) as the sole crystalline product in approximately 40% yield. The all-cis structure, which was originally assigned by J. F. Brown
Synthesis and characterization of novel inorganic/organometallic compoundsSilicone and Siloxane ChemistryChemical Synthesis and Characterization
Xiaoyin Chen、Limin Huang、Quanzhi Li1997-10-01The Journal of Physical Chemistry B
The effect of hydrothermal conditions on the interactions between surfactant molecules and silicate species plays a key role in the structural transformations of silica precursors. In this work the structures of different siliceous products obtained at various synthesis temperatures have been characterized by powder X…
Zeolite Catalysis and SynthesisMesoporous Materials and CatalysisClay minerals and soil interactions
A. Kopal、T. Bahník、Jan Fousek1997-10-01Ferroelectrics
Formulae for equlibrium stripe domain width Weq in a nonductive ferroelectric plate of thickness d are deduced, taking into account electrostatic interaction of surfaces. It is shown that the classical formula giving W eq ∞ d 1/2 is not applicable when the sample thickness decreases below the value dcrit which is a fu…
Ferroelectric and Piezoelectric MaterialsLiquid Crystal Research AdvancementsAcoustic Wave Resonator Technologies
F. Vigné-Maeder、P. Sautet1997-10-01The Journal of Physical Chemistry B
The (100) face of β-cristobalite covered by geminal hydroxyls has been taken as a model for the silica surface in order to describe the hydrogen bonding and the condensation of the surface hydroxyls of silica. Periodic Hartree−Fock calculations have been performed for slabs of five atomic layers. The optimized orienta…
Zeolite Catalysis and SynthesisGlass properties and applicationsMesoporous Materials and Catalysis
Don M. Lipkin、Jacob N. Israelachvili、David R. Clarke1997-10-01Philosophical magazine. A/Philosophical magazine. A. Physics of condensed matter. Structure, defects and mechanical properties
We invoke the Lifshitz theory of van der Waals forces to derive a simple, analytical expression for the adhesion across a planar metal-ceramic interface. The van der Waals energy is conveniently expressed as a function of readily accessible bulk properties of the respective materials. Application to several non-reacti…
Graphene research and applicationsMolecular Junctions and NanostructuresForce Microscopy Techniques and Applications
K. Idla、A. Talo、Heidi Niemi 等 5 位作者1997-10-01Surface and Interface Analysis
We have characterized electrically conductive polymer, polypyrrole (Ppy), films on mild steel with atomic force microscopy (AFM) and x-ray photoelectron spectroscopy (XPS). The Ppy films were polymerized electrochemically from sodium p-toluene sulphonate (ToS) water–ethanol solution. A very good corrosion protective e…
Corrosion Behavior and InhibitionConducting polymers and applicationsAnalytical Chemistry and Sensors
Mark J. Davis、Phillip D. Ihinger、Antonio C. Lasaga1997-10-01Journal of Non-Crystalline Solids
Steady-state rates and induction times for crystal nucleation in lithium disilicate melt depend exponentially on water content (up to 975 ppm). Time-dependent crystal number densities exhibit self-similar behavior as a function of water content, thereby allowing for a description of all data by a universal curve. This…
Material Dynamics and PropertiesGlass properties and applicationsMineralogy and Gemology Studies
J. Gopalakrishnan、Sonal Pandey、K. Kasthuri Rangan1997-10-01Chemistry of Materials
Several transition-metal phosphates, arsenates, and antimonates undergo direct reduction in hydrogen at relatively low temperatures (400−1050 °C) to the corresponding phosphides, arsenides, and antimonides, providing a convenient route for the synthesis of transition-metal pnictides. We have synthesized by this route…
Iron-based superconductors researchMXene and MAX Phase MaterialsInorganic Chemistry and Materials
Duane C. Wallace1997-10-01Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics
Two key experimental properties of elemental liquids, together with an analysis of the condensed-system potential-energy surface, lead us logically to the dynamical theory of monatomic liquids. Experimentally, the ion motional specific heat is approximately $3Nk$ for $N$ ions, implying the normal modes of motion are a…
Material Dynamics and PropertiesTheoretical and Computational PhysicsSpectroscopy and Quantum Chemical Studies
M. Kunert、Eckhard Dinjus、Maria Nauck 等 4 位作者1997-10-01Chemische Berichte
Abstract Solvent‐free sodium phenoxide (NaOPh) crystallises as a polymer and forms a polymeric chain in the [0 0 1] direction. The low coordination of the sodium atoms, as evident in the crystal structure, is confirmed by the easy coordination of oxoligands (α‐donors). Hence, the four‐membered ring chain of the solven…
Metal-Organic Frameworks: Synthesis and ApplicationsPolyoxometalates: Synthesis and ApplicationsCarbon dioxide utilization in catalysis