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Dehydration of the nanoporous coordination framework Er iii [Co iii (CN) 6 ]·4(H 2 O): single crystal to single crystal transformation and negative thermal expansion in Er iii [Co iii (CN) 6 ]

Thorsten Pretsch、Karena W. Chapman、G.J. Halder 等 4 位作者2006-01-01Chemical Communications

Desorption of bound and unbound water molecules from the nanoporous coordination framework ErIII[CoIII(CN)6].4(H2O) to form the apohost, ErIII[CoIII(CN)6], proceeds via a single crystal to single crystal transformation in which the Er(III) cations change from 8- to 6-coordinate; dehydration results in a striking chang…

Advanced Battery Materials and TechnologiesThermal Expansion and Ionic ConductivityMagnesium Oxide Properties and Applications

Synthesis, characterization and nonlinear optical (NLO) properties of a push–pull bisboronate chromophore with a potential electric field induced NLO switch

Jean François Lamère、Pascal G. Lacroix、Norberto Farfán 等 6 位作者2006-01-01Journal of Materials Chemistry

A new bisboronate with five six-membered ring heterobicycles was prepared by reaction of [2-(2-hydroxy-4-diethylaminobenzylidene)amino]-5-nitroaminophenol and 1,4-phenyldiboronic acid, and its quadratic nonlinear optical (NLO) response was compared to that of a related monoboronate species. A computational investigati…

Crystal structures of chemical compoundsNonlinear Optical Materials ResearchElectron Spin Resonance Studies

The use of the consecutive adsorption of pyridine bases and carbon monoxide in the IR spectroscopic study of the accessibility of acid sites in microporous/mesoporous materials

N. S. Nesterenko、Frédéric Thibault‐Starzyk、V. Montouilliout 等 8 位作者2006-01-01Kinetics and Catalysis

A new approach to the evaluation of the accessibility of acid sites in microporous/mesoporous materials is developed and tested using a series of dealuminated mordenites. This approach is based on an IR-spectroscopic study of the consecutive adsorption of substituted alkylpyridines (pyridine, 2,4,6-trimethylpyridine,…

Zeolite Catalysis and SynthesisMesoporous Materials and CatalysisCovalent Organic Framework Applications

Large scale alignment of a lamellar block copolymer thin film via electric fields: a time-resolved SFM study

Violetta Olszowka、Markus Hund、Volker Kuntermann 等 7 位作者2006-01-01Soft Matter

We have devised a novel route towards a nanoscopically striped surface pattern with long range order the self-assembly of an ABC triblock terpolymer thin film exposed to an in-plane electric field. the interplay between surface interactions and the effect of the electric field the lamellae were oriented both perpendic…

Force Microscopy Techniques and ApplicationsBlock Copolymer Self-AssemblyFluid Dynamics and Thin Films

Layers of opportunity: nanostructured polymer assemblies for the delivery of macromolecular therapeutics

David M. Lynn2006-01-01Soft Matter

Layer-by-layer approaches to the fabrication of nanostructured polymer assemblies have contributed to the design of thin films and composites of interest in a variety of areas. Here, we highlight recent contributions from our laboratory toward the design of multilayered assemblies that erode controllably and predictab…

RNA Interference and Gene DeliveryPolymer Surface Interaction StudiesNanofabrication and Lithography Techniques

Modeling of phase volume diffractive gratings, part 1: transmitting sinusoidal uniform gratings

Igor V. Ciapurin2006-01-01Optical Engineering

A detailed model of the diffraction of plane and Gaussian beams on plane uniform phase Bragg gratings based on Kogelnik's theory of coupled waves is presented. The model describes transmitting gratings with arbitrary orientation in a plane-parallel plate taking into account spectral width and angular divergence of las…

Advanced Fiber Optic SensorsPhotorefractive and Nonlinear OpticsOptical Coatings and Gratings

Properties of small TiO 2 , ZrO 2 and HfO 2 nanoparticles

Scott M. Woodley、Said Hamad、José A. Mejías 等 4 位作者2006-01-01Journal of Materials Chemistry

Ground state structures and energies are predicted for (MO2)n, where n = 1 to 8 and M is one of three isovalent cations, titanium(IV), zirconium(IV) and hafnium(IV), with the minimised binding energies calculated using Density Functional Theory. An increased number of single coordinated oxygen atoms, as opposed to mor…

Catalytic Processes in Materials ScienceSemiconductor materials and devicesThermal and Kinetic Analysis

Ordered mesoporous silicon carbide (OM-SiC) via polymer precursor nanocasting

Piotr Krawiec、Dorin Geiger、Stefan Kaskel2006-01-01Chemical Communications

Ordered mesoporous SiC with high specific surface area (650-800 m(2) g(-1)) and well ordered pore structure was obtained via nanocasting of polycarbosilanes into SBA-15 and subsequent conversion of the polymer at 1300 degrees C.

Advanced ceramic materials synthesisMesoporous Materials and CatalysisCopper Interconnects and Reliability

Thin and defect-free Pd-based composite membrane without any interlayer and substrate penetration by a combined organic and inorganic process

Jianhua Tong、Lingling Su、Kenji Haraya 等 4 位作者2006-01-01Chemical Communications

A novel combined organic and inorganic process for preparing thin supported membrane was developed, using which a thin and defect-free Pd membrane with uniform thickness of 5 microm was directly coated onto porous alpha-Al2O3 hollow fiber without any interlayer and substrate penetration; at the same time, there existe…

Catalysts for Methane ReformingHydrogen Storage and MaterialsAmmonia Synthesis and Nitrogen Reduction

Enhancement in pump inversion efficiency at 980 nm in Er3+, Er3+/Eu3++ and Er3+/Ce3+doped tellurite glass fibers

Shaoxiong Shen、Billy Richards、Animesh Jha2006-01-01Optics Express

Amplification properties have been compared in Er(3+), Er(3+)/Eu(3+) and Er(3+)/Ce(3+) doped tellurite glass fibers using a 980 nm pumping scheme. The pump efficiency has been compared in the 3 types of fibers. Er(3+) ion upconversion in bulk glasses and fibers in visible range has been measured and the Er(3+) ion IR…

Luminescence Properties of Advanced MaterialsGlass properties and applicationsSolid State Laser Technologies

Grain Boundary Decohesion by Sulfur Segregation in Ferromagnetic Iron and Nickel —A First-Principles Study—

Masatake Yamaguchi、Motoyuki Shiga、Hideo Kaburaki2006-01-01MATERIALS TRANSACTIONS

Using first-principles calculations, we simulate grain boundary decohesion (embrittlement) in ferromagnetic bcc FeΣ3(111)[1\\bar10] and fcc NiΣ5(012)[100] symmetrical tilt grain boundaries by progressively adding sulfur atoms to the boundaries. We calculate the segregation energy of sulfur atom, tensile strength, and…

Microstructure and mechanical propertiesMicrostructure and Mechanical Properties of SteelsMagnetic Properties and Applications

Biomimetic silicification of 3D polyamine-rich scaffolds assembled by direct ink writing

Mingjie Xu、Gregory M. Gratson、Eric B. Duoss 等 5 位作者2006-01-01Soft Matter

We report a method for creating synthetic diatom frustules the biomimetic silicification of polyamine-rich scaffolds assembled by direct ink writing (DIW) [G. M. Gratson, M. Xu and J. A. Lewis, , 2004, , 386, ]. A concentrated polyamine-rich ink is robotically deposited in a complex 3D pattern that mimics the shape of…

Protist diversity and phylogenyDiatoms and Algae ResearchSlime Mold and Myxomycetes Research

Negative permeability and subwavelength focusing of quasi-periodic dendritic cell metamaterials

Xin Zhou、Quan H. Fu、Zhao Jing 等 5 位作者2006-01-01Optics Express

We present the design for a hexagonal cell made of quasi-periodic dendritic arranged collections of plasmonic metallic wires that may exhibit a resonant magnetic collective response. When such quasi-periodic dendritic cells are etched on a host medium, they may provide metamaterials with negative effective permeabilit…

Metamaterials and Metasurfaces ApplicationsPlasmonic and Surface Plasmon ResearchAdvanced Antenna and Metasurface Technologies

Experimental approaches to the preparation of supported metal nanoparticles

David Barkhuizen、Itai Mabaso、Elvera Viljoen 等 7 位作者2006-01-01Pure and Applied Chemistry

Abstract Supported metal particles play an important role in heterogeneous catalysis. It has been shown lately that the size of the metal crystallites in the supported metal catalysts has a profound effect on the catalytic activity, thus necessitating the need for synthesis methods aimed at a strict control of the met…

Catalytic Processes in Materials ScienceCatalysis and Oxidation ReactionsNanomaterials for catalytic reactions

Study of Gamma-Irradiation Effects on Chitosan Microparticles

Kashappa Goud H. Desai、Hyun Jin Park2006-01-01Drug Delivery

Gamma (gamma)-irradiation is finding increasing use in the sterilization of pharmaceutical products. However, irradiation also might affect the performance of drug delivery systems. In this study, the influence of gamma-irradiation on the characteristics of chitosan microparticles was investigated. The diclofenac sodi…

Nanocomposite Films for Food PackagingAntimicrobial agents and applicationsBiopolymer Synthesis and Applications

The Effect of Interphase Structures in Nanodielectrics

Stephanie Raetzke、J. Kindersberger2006-01-01IEEJ Transactions on Fundamentals and Materials

The interface between the polymer and the filler particles influences the properties of dielectric materials. To understand how interfaces act, they should be considered as layers rather than interfaces. Therefore the term interphase is more appropriate for the polymer layer around a filler particle where the polymer…

High voltage insulation and dielectric phenomenaPower Transformer Diagnostics and InsulationDielectric materials and actuators

In vitro study on hemocompatibility and cytocompatibility of poly(3-hydroxybutyrate-co-3-hydroxyhexanoate)

Xiang‐Hua Qu、Qiong Wu、Guo‐Qiang Chen2006-01-01Journal of Biomaterials Science Polymer Edition

Samples of polyhydroxybutyrate (PHB), poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) and poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) (PHBHHx) containing 4–20% (mol/mol) 3-hydroxyhexanoate (3HHx) were characterized as potential components of blood-contact biomaterials. In an erythrocyte contact hemolysis assay,…

biodegradable polymer synthesis and propertiesElectrospun Nanofibers in Biomedical ApplicationsMicroplastics and Plastic Pollution

Direct Magnetic Tubular Cell Seeding: A Novel Approach for Vascular Tissue Engineering

H. Perea、Joachim Aigner、Úrsula Hopfner 等 4 位作者2006-01-01Cells Tissues Organs

Optimizing seeding efficiency, reducing delayed culture periods and mimicking native tissue architecture are crucial requirements for the development of seeding procedures in tissue engineering. In vascular applications, the tubular geometry of the grafts further hampers the efficient delivery of cells onto the scaffo…

Electrospun Nanofibers in Biomedical ApplicationsPeriodontal Regeneration and TreatmentsTissue Engineering and Regenerative Medicine

ATP level variations in heterotrophic bacteria during attachment on hydrophilic and hydrophobic surfaces

Elena P. Ivanova、Yulia V. Alexeeva、Duy Khanh Pham 等 5 位作者2006-01-01PubMed

A survey of the extracellular ATP levels of 86 heterotrophic bacteria showed that gram-negative bacteria of the genera Sulfitobacter, Staleya, and Marinobacter secreted elevated amounts of extracellular ATP, ranging from 6.0 to 9.8 pM ATP/colony forming unit (cfu), and that gram-positive bacteria of the genera Kocuria…

Advanced biosensing and bioanalysis techniquesLipid Membrane Structure and BehaviorSupramolecular Self-Assembly in Materials

Paint and Coatings: Applications and Corrosion Resistance

作者信息未提供2006-01-01Pigment & Resin Technology

Paint and Coatings: Applications and Corrosion Resistance helps designers, engineers, and maintenance personnel choose the appropriate coatings to best protect equipment, structures, and various components from corrosion, degradation, and failure. The book addresses all factors - including physical and mechanical prop…

Corrosion Behavior and InhibitionSmart Materials for ConstructionMaterial Properties and Applications