I.I. Vorontsov、Philip Coppens2005-06-15Journal of Synchrotron Radiation
Expressions for the random-distribution and cluster-formation models for light-induced changes in crystals studied by time-resolved diffraction are presented. The two models can be distinguished on the basis of differences in the predicted intensities. The light-induced increase in the atomic displacement parameters i…
Luminescence Properties of Advanced MaterialsGlass properties and applicationsX-ray Diffraction in Crystallography
Kazuyuki Ishii、Hatsumi Itoya、Hideya Miwa 等 6 位作者2005-06-15The Journal of Physical Chemistry A
We have investigated the excited-state properties and singlet oxygen ((1)Delta(g)) generation mechanism in phthalocyanines (4M; M = H(2), Mg, or Zn) and in low-symmetry metal-free, magnesium, and zinc tetraazaporphyrins (TAPs), that is, monobenzo-substituted (1M), adjacently dibenzo-substituted (2AdM), oppositely dibe…
Porphyrin and Phthalocyanine ChemistryPhotodynamic Therapy Research StudiesPhotochemistry and Electron Transfer Studies
Christophe Flesch、Élodie Bourgeat‐Lami、Stéphane Mornet 等 6 位作者2005-06-15Journal of Polymer Science Part A Polymer Chemistry
Abstract Superparamagnetic and biodegradable/biocompatible core–corona nanocomposite particles were prepared by ring‐opening polymerization of ϵ‐caprolactone initiated from the surface of maghemite. As was done in a previous work, an aminosilane coupling agent was chosen as the coinitiator and immobilized at the surfa…
Nanoparticle-Based Drug Deliverybiodegradable polymer synthesis and propertiesElectrospun Nanofibers in Biomedical Applications
Frank Wien、Andrew J. Miles、Jonathan Lees 等 5 位作者2005-06-15Journal of Synchrotron Radiation
Synchrotron radiation circular dichroism (SRCD) spectroscopy is emerging as an important new tool in structural molecular biology. Previously we had shown that in lower-flux SRCD instruments, such as UV1 at ISA and beamline 3.1 at the SRS, vacuum ultraviolet (VUV) radiation damage to proteins was not evident after exp…
Protein Structure and DynamicsMass Spectrometry Techniques and ApplicationsEnzyme Structure and Function
Shaoxiong Shen、Animesh Jha、Lihui Huang 等 4 位作者2005-06-15Optics Letters
We report gain measurements in Tm(3+)/Yb(3+)-codoped tellurite glass fibers in the 1460-1530-nm region using a conventional 980-nm pumping scheme. The gain spectrum is dependent on the geometry of the fiber and the length owing to the superfluorescence upconversion pump scheme.
Glass properties and applicationsPhotonic Crystal and Fiber OpticsSolid State Laser Technologies
Tomasz M. Grzegorczyk、Zachary M. Thomas、Jin Au Kong2005-06-15Applied Physics Letters
We study the inversion of critical angle when a wave propagates through an anisotropic and a bianisotropic metamaterial exhibiting negative permittivity and negative permeability along some specific directions. This inversion of critical angle is explained by the dispersion relation of the medium, which shows that wav…
Antenna Design and AnalysisMetamaterials and Metasurfaces ApplicationsAdvanced Antenna and Metasurface Technologies
Ki Kang Kim、Dong Jae Bae、Cheol‐Min Yang 等 6 位作者2005-06-15Journal of Nanoscience and Nanotechnology
In this paper we present a simple approach of nanodispersing single-walled carbon nanotubes (SWCNTs) in a non-polar 1,2-dichloroethane (DCE) solvent. After filtration with isopropanol and acetone, the purified SWCNTs were immersed in DCE, followed by sonication for about 15 hours. The samples were further centrifuged…
Carbon Nanotubes in CompositesForce Microscopy Techniques and ApplicationsNanopore and Nanochannel Transport Studies
R.F. Singer、Carolin Körner、Volker Altstädt 等 4 位作者2005-06-15Retrospective Collection
This collection constitutes an essential sourcebook for researchers, producers and users seeking technical information on materials with foam-like structures.The collection is unique, in that it brings together people from the fields of metals and polymers. Both material types derive their advantageous properties from…
biodegradable polymer synthesis and propertiesPolymer Foaming and Composites
Kristina Djinović‐Carugo、John R. Helliwell、H. B. Stuhrmann 等 4 位作者2005-06-15Journal of Synchrotron Radiation
The utilization and the potential of softer and soft X-rays in macromolecular crystallography as well as the challenges associated with the corresponding diffraction experiments and their possible remedies are reviewed.
Photosynthetic Processes and MechanismsAdvanced Electron Microscopy Techniques and ApplicationsEnzyme Structure and Function
Masanori Abe、Yasuhiko Benino、Takahiro Fujiwara 等 5 位作者2005-06-15Journal of Applied Physics
Some glasses such as 21.25Sm2O3.63.75MoO3.15B2O3 (mol %) giving the formation of nonlinear optical Sm2(MoO4)3 crystals through conventional crystallization in an electric furnace and through continuous-wave Nd: yttrium aluminum garnet (YAG) laser (wavelength: 1064nm) irradiation (samarium atom heat processing) have be…
Glass properties and applicationsPhotorefractive and Nonlinear OpticsSolid State Laser Technologies
Yu Wang、Kai Wu2005-06-15Journal of the American Chemical Society
A large-area crystalline zinc aluminate nanotube array on its own nanonet was prepared by thermal replication on an anodized aluminum oxide template and through the gas-solid reaction between Zn vapor, Al2O3, and residual O2 or produced H2O. The free-standing nanotube array plus the nanonet structure, as a whole, was…
Ferroelectric and Piezoelectric MaterialsPhotonic Crystals and ApplicationsAnodic Oxide Films and Nanostructures
Libing Zhou、Wen Liu2005-06-15Optics Letters
An embedded metal-wire nanograting is designed and fabricated for the first time to our knowledge. This artificial material could be used as a broadband polarizing beam splitter to reflect s-polarized light and transmit p-polarized light. An upper-cladding layer of the same material as the gratings is deposited on the…
Photonic and Optical DevicesPhotonic Crystals and ApplicationsOptical Coatings and Gratings
Xavier Cartoixà、Lin‐Wang Wang2005-06-15Physical Review Letters
We calculate and model the microscopic dielectric response function for quantum dots using first principle methods. We find that the response is bulklike inside the quantum dots, and the reduction of the macroscopic dielectric constants is a surface effect. We present a model for the microscopic dielectric function wh…
Quantum Dots Synthesis And PropertiesSemiconductor materials and devicesNear-Field Optical Microscopy
A. Dinia、G. Schmerber、C. Mény 等 5 位作者2005-06-15Journal of Applied Physics
We have used magnetron cosputtering to grow Zn1−xCoxO magnetic dilute semiconductors. The growth has been performed on SiO2∕Si and Al2O3(0001) substrates. The Co concentration has been varied between 0.1 and 0.25 and the substrate temperature between room temperature and 600°C. X-ray diffraction analysis has shown tha…
ZnO doping and propertiesCopper-based nanomaterials and applicationsGa2O3 and related materials
Guan Jun Qiao、Hong Jie Wang、Ji Gao 等 4 位作者2005-06-15Materials science forum
High purity alumina ceramic and Kovar alloy were brazed by Nickel and Titanium foils stacked as Ni/Ti/Ni layer structure. Airtight joints were achieved with shear strength more than 30MPa, after brazing at 995oC for 30min. A sandwich structure was observed in solder, which means an a-Ti solid solution belt at mid part…
Advanced ceramic materials synthesisIntermetallics and Advanced Alloy PropertiesAdvanced materials and composites
Nikita V. Martyushev、Yu. P. Egorov2005-06-15OpenAlex
At present, there are a number of software packages for the quantitative estimation of the characteristics of metallographic structure. One of the problems of using these software packages, however, is determining the phase to which the microstructure components belong. This paper proposes three methods based on the p…
Advanced Measurement and Metrology TechniquesMaterial Properties and Failure Mechanisms
B. M. I. van der Zande、J. Steenbakkers、Johan Lub 等 5 位作者2005-06-15Journal of Applied Physics
Photopolymerization of liquid-crystalline diacrylates is a versatile tool to make optical films for liquid-crystal display (LCD) enhancement. The constant drive towards LCD’s having an improved front-of-screen performance demands optical films with properties that can be adjusted on (sub) pixel level. Birefringent fil…
Liquid Crystal Research AdvancementsPhotorefractive and Nonlinear OpticsAdvanced Optical Imaging Technologies
Chun‐Lin Ni、Yizhi Li、Qingjin Meng2005-06-15Journal of Coordination Chemistry
The crystal structure of a new ion-pair complex, benzyltriphenylphosphinium-bis(maleonitriledithiolato)nickel (1) ([BzTPP][Ni(mnt)2]) was determined. The anions and [BzTPP]+ cations of complex 1 stack into well-segregated columns in the solid state, and the Ni(III) ions form a one-dimensional alternating chain with Ni…
Perovskite Materials and ApplicationsMagnetism in coordination complexesOrganic and Molecular Conductors Research
Tetsuya Tateishi、Guoping Chen2005-06-15Key engineering materials
This DOI is not currently attached to any metadata records. DOIs can’t actually ever be deleted (they’re persistent), but sometimes our members create DOIs in error. We do have a process to approximate deletion which we follow only in rare cases where the DOI has been genuinely created in error, and most crucially, if…
Electrospun Nanofibers in Biomedical Applications
Rosamund J. Wealthall、L.R. Brooker、D.J. Macey 等 4 位作者2005-06-15Journal of Morphology
The major lateral teeth of the chiton Acanthopleura echinata are composite structures composed of three distinct mineral zones: a posterior layer of magnetite; a thin band of lepidocrocite just anterior to this; and apatite throughout the core and anterior regions of the cusp. Biomineralization in these teeth is a mat…
Paleontology and Stratigraphy of FossilsMarine Biology and Ecology ResearchCalcium Carbonate Crystallization and Inhibition