Heungsoo Shin、Seongbong Jo、Antonios G. Mikos2002-04-17Journal of Biomedical Materials Research
Novel oligo[poly(ethylene glycol) fumarate] (OPF) hydrogels functionalized with cell adhesion peptides were prepared, and the effects of incorporated peptide density and macromolecular structure of hydrogels on attachment and morphology of marrow stromal cells (MSCs) were evaluated. Poly(ethylene glycol) (PEG; number…
Polymer Surface Interaction StudiesBone Tissue Engineering MaterialsSilk-based biomaterials and applications
Mingqian He、Thomas M. Leslie、John A. Sinicropi2002-04-17Chemistry of Materials
A facile high-yield synthetic route has been established for the synthesis of α-hydroxy methyl ketones. These intermediates are important precursors to the tricyanovinyldihydrofuran type of acceptor used in high μβ nonlinear optical chromophores. 3-Hydroxy-3-methyl-2-butanone is one of only three commercially availabl…
Nonlinear Optical Materials ResearchTraditional and Medicinal Uses of AnnonaceaeMolecular spectroscopy and chirality
Xianbao Wang、Yunqi Liu、Wenfeng Qiu 等 4 位作者2002-04-17Journal of Materials Chemistry
Non-covalent functionalization of carbon nanotubes (CNTs) is of paramount importance for developing new nanomaterials without destruction of the electrical properties of the CNTs. In this paper, we report a simple approach to immobilize tetra-tert-butylphthalocyanines (tBuPcs) on CNTs. The immobilization results from…
Porphyrin and Phthalocyanine ChemistryGraphene research and applicationsCarbon Nanotubes in Composites
W. Prellier、B. Mercey2002-04-17arXiv
We report on the synthesis of high quality La$_{1/3}$Sr$_{2/3}$FeO$_3$ (LSFO) thin films using the pulsed laser deposition technique on both SrTiO$_3$ (STO) and LaAlO$_3$ (LAO) substrates (100)-oriented. From X-Ray diffraction (XRD) studies, we find that the films have an out-of-plane lattice parameter around 0.3865nm…
Materials ScienceStrongly Correlated Electrons
YounJoon Jung、Eli Barkai、Robert J. Silbey2002-04-17arXiv
Recent experimental observations have found two different kinds of ``strange kinetic behaviors" in individual semiconductor nanocrystals (or quantum dots). Fluorescence intermittency observed in the quantum dots shows power--law statistics in both {\it on} and {\it off} times. Spectral diffusion of the quantum dots is…
cond-mat.stat-mechMaterials ScienceChemical Physics
T. Prikhna、W. Gawalek、N. Novikov 等 13 位作者2002-04-17arXiv
Bulk MgB2 - based materials with the following critical current densities (jc) in 1 T field: 570 kA/cm^2 at 10 K, 350 kA/cm^2 at 20 K and 40 kA/cm^2 at 30 K and in 10 T field: 650 A/cm^2 at 10 K have been high-pressure (HP) synthesized from Mg and B with 2 - 10 wt.% addition of Ta. In synthesis and sintering process T…
SuperconductivityMaterials Science
Leonid S. Metlov2002-04-17arXiv
The description of the early stage of microfracture growth in a quasibrittle solid with thermodynamic positions is considered. From the most general thermodynamic performances the "principle" of minimization of free energy is received. The account high (down to thirds) degrees in expansion of free energy concerning pa…
Materials Science
T. Prikhna、W. Gawalek、N. Novikov 等 15 位作者2002-04-17arXiv
A method of soldering of melt-textured YBa2Cu3O7-d -based (MT-YBCO) superconductive blocks using a TmBaCu3O7-d (Tm123) powder has been suggested. The method excludes stages of slow cooling during soldering and preparation of auxiliary layers. To estimate the critical current density (jc) through the obtained junction,…
SuperconductivityMaterials Science
J. Bok、J. Bouvier2002-04-17arXiv
We propose a model for explaining the recent results obtained by J. Schon et al (1,2) on transport properties of electrons and holes in one plane of CuO2 in a layered cuprate (CaCuO2) where the carriers are created using a field effect transistor (FET). We use the known band structure of a CuO2 plane showing a van Hov…
Materials ScienceSuperconductivity
Cédric Desplanches、Eliseo Ruíz、Antonio Rodríguez‐Fortea 等 4 位作者2002-04-17Journal of the American Chemical Society
Density functional calculations for full structures of dimers of Cu(II) complexes linked via O-H...O hydrogen bonds provide exchange-coupling constants that are in excellent agreement with experimentally reported values. Magneto-structural correlations between the exchange-coupling constant and the O...O distance or t…
Metal-Organic Frameworks: Synthesis and ApplicationsLanthanide and Transition Metal ComplexesMagnetism in coordination complexes
Hiroshi Imahori、Koichi Tamaki、Yasuyuki Araki 等 7 位作者2002-04-17Journal of the American Chemical Society
A meso,meso-linked porphyrin dimer [(ZnP)(2)] as a light-harvesting chromophore has been incorporated into a photosynthetic multistep electron-transfer model for the first time, including ferrocene (Fc), as an electron donor and fullerene (C(60)) as an electron acceptor to construct the ferrocene-meso,meso-linked porp…
Photochemistry and Electron Transfer StudiesPorphyrin and Phthalocyanine ChemistryFullerene Chemistry and Applications
José A. Rodríguez、Gang Liu、Tomàš Jirsàk 等 7 位作者2002-04-17Journal of the American Chemical Society
Synchrotron-based high-resolution photoemission and first-principles density-functional slab calculations were used to study the interaction of gold with titania and the chemistry of SO(2) on Au/TiO(2)(110) surfaces. The deposition of Au nanoparticles on TiO(2)(110) produces a system with an extraordinary ability to a…
Advanced Photocatalysis TechniquesGas Sensing Nanomaterials and SensorsCatalytic Processes in Materials Science
Nagatoshi Koumura、Edzard M. Geertsema、Marc B. van Gelder 等 5 位作者2002-04-17OpenAlex
Nine new molecular motors, consisting of a 2,3-dihydro-2-methylnaphtho[2,1-b]thiopyran or 2,3-dihydro-3-methylphenanthrene upper part and a (thio)xanthene, 10,10-dimethylanthracene, or dibenzocycloheptene lower part, connected by a central double bond, were synthesized. A single stereogenic center, bearing a methyl su…
Magnetism in coordination complexesPorphyrin and Phthalocyanine ChemistrySupramolecular Chemistry and Complexes
Meenal Kowshik、Neelima Deshmukh、W. Vogel 等 6 位作者2002-04-17OpenAlex
Cadmium sulfide nanoparticles were synthesized intracellularly by a Schizosaccharomyces pombe strain when challenged with 1 mM cadmium in solution. The nanoparticles, a known semiconducting material, exhibited an absorbance maximum at 305 nm. X-ray scattering data showed that the nanoparticles had a Wurtzite (Cd(16)S(…
Quantum Dots Synthesis And PropertiesChalcogenide Semiconductor Thin FilmsAdvanced Photocatalysis Techniques
Y. D. Park、Aubrey T. Hanbicki、Steven C. Erwin 等 10 位作者2002-04-16ChemInform
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” opt…
ZnO doping and propertiesMagnetic and transport properties of perovskites and related materialsElectronic and Structural Properties of Oxides
V. S. Prasad、C. K. S. Pillai2002-04-16Journal of Polymer Science Part A Polymer Chemistry
Abstract Melt‐processable liquid‐crystalline terpolyesters of 4‐hydroxyphenylacetic acid (HPAA) and 3‐(4‐hydroxyphenyl)propionic acid (HPPA) with terephthalic acid and 2,6‐naphthalene diol were synthesized by one‐step acidolysis melt polycondensation followed by postpolymerization and were characterized with viscosity…
biodegradable polymer synthesis and propertiesAdvanced Polymer Synthesis and CharacterizationPolymer crystallization and properties
Johannes A. A. W. Elemans、Mark J. Boerakker、Simon J. Holder 等 7 位作者2002-04-16Proceedings of the National Academy of Sciences
Host molecules with U-shaped receptor cavities have been derivatized at their convex side with two n-hydrocarbon tails (1), two first-generation (2), and two second-generation (3) monodendritic hydrocarbon tails. Although hosts 1 and 2 display plastic-crystalline behavior, evidence suggests that host 3 forms a cubic l…
Supramolecular Self-Assembly in MaterialsDendrimers and Hyperbranched PolymersLuminescence and Fluorescent Materials
Jun Xu、J. Moxom、Steven H. Overbury 等 6 位作者2002-04-16Physical Review Letters
Quantum antidots are subnanometer scale vacancy clusters, the localized electronic structure of which can significantly alter the properties of a nanomaterial. We use positron spectroscopy to study vacancy clusters generated during the formation of gold nanoparticles via ion implantation in an MgO matrix. We observed…
Gold and Silver Nanoparticles Synthesis and ApplicationsNanocluster Synthesis and ApplicationsCopper-based nanomaterials and applications
Yongwoo Shin、James E. Roberts、Maria M. Santore2002-04-16Macromolecules
This work addressed the bound train fraction of an adsorbing model polyelectrolyte ((dimethylamino)ethyl methacrylate, DMAEMA), for variations in pH, which altered the relative charge densities of the polymer and substrate (silica). In addition to the weakly basic and acidic natures of the polyelectrolyte and substrat…
Polymer Surface Interaction StudiesHydrogels: synthesis, properties, applicationsElectrostatics and Colloid Interactions
R. Klingeler、J. Geck、R. Gross 等 7 位作者2002-04-16Physical review. B, Condensed matter
Measuring the magnetization and the specific heat of ${\mathrm{La}}_{1\ensuremath{-}x}{\mathrm{Sr}}_{x}{\mathrm{MnO}}_{3}$ single crystals with $0.11<~x<~0.15$ we have investigated the charge order (CO) transition in lightly doped manganites. Though the properties of the ferromagnetic insulating state at low tem…
Magnetic and transport properties of perovskites and related materialsRare-earth and actinide compoundsAdvanced Condensed Matter Physics