Koichi Kajihara、Masahiro Hirano、Motoko Uramoto 等 6 位作者2005-07-01Journal of Applied Physics
The amount of oxygen molecules (O2) in amorphous SiO2(a-SiO2), also called interstitial O2, was quantitatively measured by combining thermal-desorption spectroscopy (TDS) with infrared photoluminescence (PL) measurements of interstitial O2 at 1272 nm while exciting with 1064-nm Nd: yttrium aluminum garnet laser light.…
Luminescence Properties of Advanced MaterialsGlass properties and applicationsLaser Material Processing Techniques
G. S. Bocharov、А. В. Елецкий2005-07-01Technical Physics
The effect of screening on the emissivity of a field cathode built around a carbon nanotube array is analyzed. A numerical method of solving the Laplace equation for intricate-shape cathodes is developed that makes it possible to relate the amplification factor to the nanotube spacing in arrays containing as many as 2…
Carbon Nanotubes in CompositesGraphene research and applicationsNanotechnology research and applications
Xifeng Li、Weina Miao、Qun Zhang 等 6 位作者2005-07-01Semiconductor Science and Technology
High performance molybdenum-doped indium oxide (IMO) films were deposited on slide glass substrates from metallic targets by using dc reactive magnetron sputtering at room temperature. The structural, electrical and optical properties have been investigated as functions of target composition and oxygen partial pressur…
ZnO doping and propertiesGas Sensing Nanomaterials and SensorsTransition Metal Oxide Nanomaterials
Tillmann Cyrus、Patrick M. Winter、Shelton D. Caruthers 等 5 位作者2005-07-01Expert Review of Cardiovascular Therapy
Molecular vascular imaging represents a novel tool that promises to change the current medical paradigm of 'see and treat' to a 'detect and prevent' strategy. Nanoparticle agents, such as superparamagnetic nanoparticles and perfluorocarbon nanoparticle emulsions, have been developed for noninvasive imaging, particular…
Nanoparticle-Based Drug DeliveryAdvanced MRI Techniques and ApplicationsNanoplatforms for cancer theranostics
Pedro M. R. Paulo、Sı́lvia M. B. Costa2005-07-01The Journal of Physical Chemistry B
Steady-state absorption and emission spectroscopy and time-resolved fluorescence measurements were employed in the study of meso-tetrakis(4-N-methylpyridinium)porphine (TMPyP) interactions with half-generation carboxyl-terminated poly(amidoamine) (PAMAM) dendrimers in water. TMPyP experiences a less polar environment…
Advanced biosensing and bioanalysis techniquesLuminescence and Fluorescent MaterialsDendrimers and Hyperbranched Polymers
Xiangyang Shi、István Bányai、Wojciech G. Lesniak 等 8 位作者2005-07-01Electrophoresis
Generation 2 to generation 5 poly(amidoamine) (PAMAM) dendrimers having different terminal functionalities were analyzed by capillary electrophoresis (CE). Polyacrylamide gel electrophoresis was also used to assess the composition of the individual generations for comparison with the CE results. Separation of PAMAMs c…
Fuel Cells and Related MaterialsPolymer Surface Interaction StudiesDendrimers and Hyperbranched Polymers
Di‐Jia Liu、M. Krumpelt2005-07-01International Journal of Applied Ceramic Technology
Recent progress in developing perovskite materials as more cost‐effective catalysts in autothermal reforming (ATR) of diesel fuel to hydrogen‐rich reformate for solid oxide fuel cell (SOFC) application is reported. Perovskite‐type metal oxides with B sites partially exchanged by ruthenium were prepared and evaluated u…
Catalytic Processes in Materials ScienceAdvancements in Solid Oxide Fuel CellsCatalysis and Hydrodesulfurization Studies
Takashi Minemoto、Chikao Okamoto、Satoshi Omae 等 6 位作者2005-07-01Japanese Journal of Applied Physics
A spherical Si solar cell with a semi-light-concentration system was successfully fabricated using a spherical Si crystal produced by a dropping method. The dropping method has great potential for low-waste and low-cost fabrication because the Si spheres can be made directly from dropping melted Si without the cutting…
Silicon and Solar Cell TechnologiesSilicon Nanostructures and Photoluminescencesolar cell performance optimization
Chaoyang Jiang、Sergiy Markutsya、Hennady P. Shulha 等 4 位作者2005-07-01Advanced Materials
Freely suspended gold nanoparticle arrays have been fabricated by encapsulation into layer-by-layer nanomembranes. Such nanomembranes (see Figure) retain outstanding micromechanical properties and have an anisotropic mechanical response due to the uniformly oriented nanoparticle-containing stripes. Periodic variation…
Gold and Silver Nanoparticles Synthesis and ApplicationsPolymer Surface Interaction StudiesNanofabrication and Lithography Techniques
Paul Webster2005-07-01Microscopy Today
Abstract When preparing specimens for TEM analysis, it is important that specimens routinely be large enough to manipulate with forceps and cohesive enough to hold together as a single entity. However, anyone working in EM will have some specimens that are too small to see or centrifuged pellets that easily fall apart…
Electron and X-Ray Spectroscopy Techniques
Jaroslav Sedláček、Dušan Galusek、Pavol Šajgalı́k2005-07-01Key engineering materials
The microstructure evolution and mechanical properties of alumina doped with rare earth oxide and rare earth-aluminosilicate glass has been investigated in order to understand better the impact of rare earth addition on hardness and fracture toughness. The aims of the present work are to examine the possibly beneficia…
Advanced ceramic materials synthesisGlass properties and applicationsRecycling and utilization of industrial and municipal waste in materials production
Isao Kanesaka、Yuichi Hayashi、Yoshiyuki Morioka2005-07-01Bulletin of the Chemical Society of Japan
Abstract In spinel (MgAl2O4), the strongest infrared band at 485 cm−1 shows less LO–TO splitting than the medium band at 670 cm−1. This unexpected relationship is explained in terms of the vibrational coupling of these TO modes. A new manner for evaluating the LO mode is proposed.
Luminescence Properties of Advanced MaterialsGlass properties and applicationsMagnetic Properties and Synthesis of Ferrites
Pavol Hvizdoš、José-Maria Calderón Moreno、Jan Očenášek 等 5 位作者2005-07-01Key engineering materials
The mechanical properties of a quasi-symmetrical planar functionally graded material (FGM) of Al2O3 / Al2O3+20%ZrO2 / Al2O3+5%ZrO2 prepared by electrophoretic deposition and pressureless sintering has been studied. Hardness and fracture toughness were measured using indentation methods on cross sections of samples. Fr…
Advanced ceramic materials synthesisAdvanced materials and compositesElectrophoretic Deposition in Materials Science
David P. Field、Matthew M. Nowell、P. B. Trivedi 等 5 位作者2005-07-01Diffusion and defect data, solid state data. Part B, Solid state phenomena/Solid state phenomena
The texture and grain boundary structure of recrystallized materials is dependent upon the character of the deformed matrix, and the selective nucleation and growth of crystallites from the deformation structure. Proper description of the deformed matrix includes not only local crystallite lattice orientation, but als…
Microstructure and mechanical propertiesMicrostructure and Mechanical Properties of SteelsAluminum Alloy Microstructure Properties
V. P. Privalko、Роман Дінжос、Е. Г. Привалко2005-07-01Journal of Macromolecular Science Part B
Nonisothermally crystallized samples of the neat polyamide 6 homopolymer (PA 6) and of a series of commercial nanocomposites (PNC) containing up to 7.5 wt.% of exfoliated organoclay nanoparticles were characterized at room temperature by wide‐angle and small‐angle X‐ray scattering, while their melting behavior was stu…
Polymer crystallization and propertiesPolymer Nanocomposites and Propertiesbiodegradable polymer synthesis and properties
V. Pershina2005-07-01Radiochimica Acta
Abstract Fully relativistic, four-component, density functional theory calculations (4c-DFT) were performed for [MO 4 (OH) 2 ] 2- and Na 2 [MO 4 (OH) 2 ], where M=Ru, Os, and Hs. The electronic structure of the Hs complex ion was shown to be similar to that of the Os complex ion, though [HsO 4 (OH) 2 ] 2- should be mo…
Luminescence Properties of Advanced MaterialsCatalytic Processes in Materials ScienceChemical Synthesis and Characterization
Роман Дінжос、Е. Г. Привалко、V. P. Privalko2005-07-01Journal of Macromolecular Science Part B
Neat polyamide 6 homopolymer (PA 6) and a series of commercial polymer nanocomposites (PNC) containing up to 7.5 wt. % of exfoliated organoclay nanoparticles were characterized by the exothermic effects of nonisothermal crystallization in the standard differential scanning calorimetry (DSC) mode during constant‐rate c…
Polymer crystallization and propertiesPolymer Nanocomposites and Propertiesbiodegradable polymer synthesis and properties
Andrzej Gałęski、Ewa Piórkowska、M. Pluta 等 5 位作者2005-07-01Polimery
In the article the results of studies on modification of poly(L-lactide) (PLA) via influencing its thermal history, artificial nucleation of crystallization, plasticization or filling with montmorillonite were summarized.It was found that PLA heated from the glassy state and isothermally cooled from the molten state,…
biodegradable polymer synthesis and properties
Y. Klein、D. Pelloquin、S. Hébert 等 5 位作者2005-07-01Journal of Applied Physics
The Bi–Sr–Co–O system has been investigated for small bismuth contents in order to study the formation of the misfit oxide series built up from the stacking of three rocksalt-type layers (n=3) with a single CdI2-type CoO2 hexagonal layer. Starting from nominal compositions, written as [Sr2Co1−xBixO3]RS[CoO2]1.8 (x=0.1…
Advanced Thermoelectric Materials and DevicesMagnetic and transport properties of perovskites and related materialsThermal Expansion and Ionic Conductivity
Mohamed Mahmoud Nounou、Labiba K. El‐Khordagui、N Khalafallah 等 5 位作者2005-07-01DOAJ (DOAJ: Directory of Open Access Journals)
Lyophilization increases the shelf-life of liposomes by preserving it in a dry form as lyophilized cake to be reconstituted with water immediately prior to administration. Aiming at increasing stability and availability of 5-Fluorouracil liposomal products, 5-Fluorouacil Stable Plurilamellar Vesicles were prepared. Fr…
Bone Tissue Engineering MaterialsNanoparticle-Based Drug DeliveryElectrospun Nanofibers in Biomedical Applications