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Time course of fibronectin in the peri-implant tissue and neointima formation after functional implantation of polyester-based vascular prostheses with different porosity in pigs

Maciej Patrzyk、Andreas Hoene、Raymond Jarchow 等 7 位作者2010-09-09Biomedical Materials

Intima hyperplasia, resulting from extracellular matrix (ECM) secretion, can lead to vascular prosthesis occlusion and is a major problem in vascular surgery. Fibronectin might contribute to ongoing ECM secretion. However, the exact role of fibronectin and its influence on neointima formation remains unclear. This stu…

Coronary Interventions and DiagnosticsElectrospun Nanofibers in Biomedical ApplicationsCell Adhesion Molecules Research

Studies on Methylolated Cyclohexanone-Formaldehyde Resin–Epoxy Resin Condensation Products

Hasmukh S. Patel、Amel Muhson Naji2010-09-09Polymer-Plastics Technology and Engineering

Methylolated cyclohexanone-formaldehyde resins having different hydroxyl values were reacted respectively with commercial epoxy resins, i.e., diglicidyle ether of bisphenol A and brominated DGEBA. The resultant polyether products were designated as I(a-f) and II(a-f), respectively. All the polyether samples were chara…

Polymer composites and self-healingEpoxy Resin Curing ProcessesSynthesis and properties of polymers

Investigation of the Jahn–Teller effect in the ${\rm C}_{60}^{{-} } $ monoanion under high pressure

E. A. Francis、Stefan W. Scharinger、Károly Németh 等 5 位作者2010-09-09physica status solidi (b)

Abstract We report the Jahn–Teller (JT) dynamics of the ${\rm C}_{60}^{{-} } $ monoanion under pressure in (Ph4P)2IC60. (Ph4P)2IC60 was synthesized by electrochemical crystallization and investigated by infrared transmission measurements up to 5 GPa. The behavior of two T1u vibrational modes of ${\rm C}_{60}^{{-} } $…

High-pressure geophysics and materialsCrystal Structures and PropertiesFullerene Chemistry and Applications

An introduction to TR-X: a simplified tool for standardized analysis

Andrew Fallgren、Russell C. Johns、L. Waters 等 11 位作者2010-09-09OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information)

TR-X is a multi-platform program that provides a graphical interface to Monte Carlo N-Particle transport (MCNP) and Monte Carlo N-Particle transport eXtended (MCNPX) codes.Included in this interface are tools to reduce the tedium of input file creation, provide standardization of model creation and analysis, and exped…

Nuclear reactor physics and engineeringGraphite, nuclear technology, radiation studiesNuclear and radioactivity studies

Evolution of the Raman intensity and the transport properties of SWNTs in various electrochemical doping stages – Exciton effects and functionalization‐induced DOS changes

P. M. Rafailov、M. Monev、Rita Bretzler 等 8 位作者2010-09-09physica status solidi (b)

Abstract We monitored the full sequence of electrochemical doping of a single‐walled carbon nanotube‐bundle sample (mean tube diameter 1.35 nm) in a NH4Cl solution from double‐layer charging to intercalation and functionalization with Raman spectroscopy, scanning electron microscopy, and transport measurements. The di…

Carbon Nanotubes in CompositesGraphene research and applicationsConducting polymers and applications

Study on soluble polyaniline by positron annihilation technique

Ananya Dan、Pradeep K. Sengupta、Bichitra Nandi Ganguly2010-09-09Journal of Applied Polymer Science

Abstract The solubility, electrical conductivity, and other properties of polyaniline (PANI) are highly dependent on its oxidation state. In this work, polyaniline (PANI1) prepared by peroxodisulphate induced polymerization of aniline in acidic aqueous medium in presence of benzenediazonium chloride salt was found to…

Advancements in Battery MaterialsAdvanced Battery Materials and TechnologiesConducting polymers and applications

Selective Oxidation of Methane to Methanol over Palla-dium-Metallophthalocyanine Composite Catalysts at Room Temperature

Yafang FAN、Chunlei Wang、Ding Ma 等 4 位作者2010-09-09CHINESE JOURNAL OF CATALYSIS (CHINESE VERSION)

Iron(II), cobolt(II), and copper(II) phthalocyanines encapsulated inside the supercage of zeolite-Y were prepared by the in situ ligand synthesis method via heating the solid mixture of iron(II)-, cobolt(II)-, and copper(II)-exchanged NaY with phthalic anhydride and urea. Using hydrogen peroxide as the oxidant, the ca…

Catalytic Processes in Materials ScienceCatalysis and Oxidation ReactionsOxidative Organic Chemistry Reactions

The composition effect of triphenylamine/polyimide composite nanolayers on the performance of hybrid organic light-emitting devices

Hwajeong Kim、Sungho Nam、Ji-Ho Park 等 5 位作者2010-09-09Semiconductor Science and Technology

Here we report the composition effect of hole-transporting material (HTM)/polyimide (PI) composite nanolayers on the performance of hybrid organic light-emitting devices (OLEDs). A well-established triphenylamine derivative, N,N'-diphenyl-N,N'-bis(3-methylphenyl)-[1,1'-diphenyl]-4,4'-diamine (TPD), was employed as a H…

Organic Electronics and PhotovoltaicsOrganic Light-Emitting Diodes ResearchConducting polymers and applications

Amino Acid Residues Important for Folding of Thioredoxin Are Revealed Only by Study of the Physiologically Relevant Reduced Form of the Protein

Damon Huber、Alain Chaffotte、Markus Eser 等 5 位作者2010-09-09Biochemistry

Thioredoxin-1 from Escherichia coli has frequently been used as a model substrate in protein folding studies. However, for reasons of convenience, these studies have focused largely on oxidized thioredoxin and not on reduced thioredoxin, the more physiologically relevant species. Here we describe the first extensive c…

Protein Structure and DynamicsEnzyme Structure and FunctionRedox biology and oxidative stress

Magnetic-field-induced phase transition of coupled edge spins in the Haldane gap system Y2BaNi1−yMgyO5

T. Ito、H. Takagi2010-09-09Physical Review B

A magnetic phase transition is induced by magnetic field in a Haldane gap system ${\text{Y}}_{2}{\text{BaNi}}_{1\ensuremath{-}y}{\text{Mg}}_{y}{\text{O}}_{5}$, where nonmagnetic Mg dopants cut an infinite chain into finite segments randomly. The ordering is realized only for field direction parallel to the $c$ axis an…

Physics of Superconductivity and MagnetismMagnetic and transport properties of perovskites and related materialsAdvanced Condensed Matter Physics

Fullerene‐induced magnetization training effect in single molecular magnet

T. L. Makarova、Valeria Zagaynova、Natalia G. Spitsina2010-09-09physica status solidi (b)

Abstract Fullerene‐containing complexes of Mn12‐based single molecular magnets have been studied. It is confirmed that fullerenes have strong influence on the relaxation processes inside single molecular magnets. Notably, the hysteresis curves are found not to return to the initial point after 1 T to −1 T to1 T measur…

Magnetism in coordination complexesAdvanced NMR Techniques and ApplicationsElectron Spin Resonance Studies

Preparation of high‐performance polyethylene via a novel processing method of combining dynamic vulcanization with a silane‐grafted water‐crosslinking technique

Quan Gan、Rongrong Qi、Jiuli Zhang 等 5 位作者2010-09-09Journal of Applied Polymer Science

Abstract A novel processing method of combining dynamic vulcanization with the silane‐grafted water‐crosslinking technique to improve the comprehensive properties of polyethylene (PE) is reported. PE was grafted with vinyl triethoxysilane (VTEO) first, and then, N,N,N′,N′‐ tetragylcidyl‐4,4′‐diaminodiphenylmethane epo…

Polymer crystallization and propertiesPolymer Nanocomposites and PropertiesFiber-reinforced polymer composites

TRANSPORT PROPERTIES OF SINGLE-WALLED CARBON NANOTUBE WITH INTRAMOLECULAR JUNCTIONS

Hui Zeng、Huifang Hu、Jianwei Wei 等 4 位作者2010-09-09Modern Physics Letters B

Using density-functional theory (DFT) combined with non-equilibrium Green's function (NEGF), we have investigated the transport properties of carbon nanotubes with S–S, M–S, and M–M heterojunctions. The results show that the local states associated with topological defects arise at the junctions. The position and widt…

Carbon Nanotubes in CompositesGraphene research and applicationsMolecular Junctions and Nanostructures

The Syntheses and Characterization of Interpenetrating Polymer Networks (IPNs) Derived from Cardanol-Based Dye and Linseed Oil-Based Polyurethanes

P. Ganga Raju Achary、Smita Biswal、Sneha Mohapatra 等 4 位作者2010-09-09Polymer-Plastics Technology and Engineering

Interpenetrating Polymer Networks, from glycerol modified linseed oil polyurethanes and cardanol-based dyes, which are yet to be extensively studied were synthesized using benzoyl peroxide as initiator and ethylene glycol dimethacrylate as cross-linker. These polymers were characterized by Fourier transform infrared s…

Polymer composites and self-healingPhotopolymerization techniques and applicationsFree Radicals and Antioxidants

Structure and aggregation kinetics of vinyltriethoxysilane-derived organic/silica hybrids

Dimas R. Vollet、Dario A. Donatti、Carlos M. Awano 等 6 位作者2010-09-09Journal of Applied Crystallography

The aggregation kinetics of solutions of vinyltriethoxysilane-derived organic/silica hybrid species were studied by small-angle X-ray scattering (SAXS) in a strongly basic medium. The SAXS intensity was analysed by a modified Sharp–Bloomfield (SB) global function and its evolution was found to be compatible with the g…

Photonic Crystals and ApplicationsSurfactants and Colloidal SystemsMesoporous Materials and Catalysis

Characterization of nanowires with the low energy electron point source (LEEPS) microscope

André Beyer、Dirk Henning Weber、B. Völkel 等 4 位作者2010-09-09physica status solidi (b)

Abstract The low energy electron point source (LEEPS) microscope is an instrument for the characterization of structural, electrical, and mechanical properties of single molecules and nanostructures. In this work, we review our efforts in advancing LEEPS as tool for the characterization of electric properties of nanow…

Force Microscopy Techniques and ApplicationsElectron and X-Ray Spectroscopy TechniquesSurface and Thin Film Phenomena

Al‐doped ZnO nanofilms: Synthesis and characterization

A. Huczko、Agnieszka Dąbrowska、D. K. Madhup 等 5 位作者2010-09-09physica status solidi (b)

Abstract Al‐doped and un‐doped ZnO nanofilms on quartz substrate were obtained by ultrasonic spray pyrolysis of salt solutions (mole concentration of Al within 0–10%). The films were characterized by Scanning electron microscopy (SEM), X‐ray diffraction (XRD), Atomic force microscopy (AFM) and UV spectroscopy to study…

ZnO doping and propertiesGas Sensing Nanomaterials and SensorsCopper-based nanomaterials and applications

A two-dimensional ZnIIcoordination polymer constructed by benzotriazole-5-carboxylate and 1,4,8,9-tetraazatriphenylene

Rui-Yun Lu、Guoyou Luan、Zheng‐Bo Han2010-09-09Acta Crystallographica Section C Crystal Structure Communications

Poly[[(μ(3)-benzotriazole-5-carboxylato-κ(4)N(1):N(3):O,O')(1,4,8,9-tetraazatriphenylene-κ(2)N(8),N(9))zinc(II)] 0.25-hydrate], {[Zn(C(7)H(3)N(3)O(2))(C(14)H(8)N(4))]·0.25H(2)O}(n), exhibits a two-dimensional layer structure in which the asymmetric unit contains one Zn(II) centre, one 1,4,8,9-tetraazatriphenylene (TAT…

Metal-Organic Frameworks: Synthesis and ApplicationsCrystal structures of chemical compoundsMagnetism in coordination complexes