Grażyna Adamus、Paola Rizzarelli、Maurizio S. Montaudo 等 5 位作者2006-02-07Rapid Communications in Mass Spectrometry
We report matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOFMS) and off-line coupling of size-exclusion chromatography with MALDI-TOFMS analysis (SEC/MALDI-TOFMS) methods for the detailed characterization of poly[(R,S)-3-hydroxybutyrate-co-L-lactic acid], P[(R,S)-3HB-co-LA], and po…
Enzyme Catalysis and Immobilizationbiodegradable polymer synthesis and propertiesMass Spectrometry Techniques and Applications
K. Osuch、E. B. Lombardi、W. Gębicki2006-02-07Physical Review B
We present ab initio full-potential density functional calculations of the electronic structure of ${\mathrm{Ti}}_{0.0625}{\mathrm{Zn}}_{0.9375}\mathrm{O}$. We show that it is likely for Ti to order ferromagnetically in $\mathrm{ZnO}$, forming a dilute magnetic semiconductor, in agreement with experiment. The ferromag…
ZnO doping and propertiesMagnetic and transport properties of perovskites and related materialsElectronic and Structural Properties of Oxides
Ba Nghiep Nguyen、Brian J. Koeppel、S. Ahzi 等 5 位作者2006-02-07Journal of the American Ceramic Society
This paper addresses the damage and fracture issues of glass and ceramic materials used in solid oxide fuel cells. Analyses of an internal crack and of an interface crack between dissimilar materials were conducted using a modified boundary layer modeling approach. In this approach, fracture is allowed to occur in a s…
Advanced ceramic materials synthesisNumerical methods in engineeringNuclear Materials and Properties
Bart J. Kooi2006-02-07Physical Review B
An analytical theory has been developed, based on Monte Carlo (MC) simulations, describing the kinetics of isothermal phase transformations proceeding by nucleation and subsequent growth for $d\text{\ensuremath{-}}1$ dimensional growth in $d$ dimensional space (with $d$ 2 or 3). This type of growth is of interest sinc…
Material Dynamics and PropertiesTheoretical and Computational Physicsnanoparticles nucleation surface interactions
K.-H. Su、Stéphane Durant、Jennifer M. Steele 等 6 位作者2006-02-07The Journal of Physical Chemistry B
We have developed a novel technique to precisely determine the Raman enhancement factor in single nanoplasmonic resonators (TNPRs). TNPRs are lithographically defined metallodielectric nanoparticles composed of two silver disks stacked vertically, separated by a silica layer. At resonance, the local electromagnetic fi…
Gold and Silver Nanoparticles Synthesis and ApplicationsPlasmonic and Surface Plasmon ResearchNanowire Synthesis and Applications
D. Viehland2006-02-07Journal of the American Ceramic Society
A systematic investigation of the stress‐dependent (σ) electromechanical properties of various ferroelectric ceramics and single crystals has been performed. Studies have been carried out on “hard” and “soft” piezoelectrics, electrostrictive ceramics, and various orientations of (1− x )Pb(Mg 1/3 Nb 2/3 )O 3 –( x ) PbT…
Ferroelectric and Piezoelectric MaterialsUltrasonics and Acoustic Wave PropagationAcoustic Wave Resonator Technologies
Katia D’Ambrosio、Arnaud Pailot、François Talfournier 等 8 位作者2006-02-07Biochemistry
Crystal structures of several members of the nonphosphorylating CoA-independent aldehyde dehydrogenase (ALDH) family have shown that the peculiar binding mode of the cofactor to the Rossmann fold results in a conformational flexibility for the nicotinamide moiety of the cofactor. This has been hypothesized to constitu…
Metabolism and Genetic DisordersEnzyme Structure and FunctionBiochemical and Molecular Research
Luigi Costa、Pierangiola Bracco、Elena Maria Brach Del Prever 等 5 位作者2006-02-07Journal of Biomedical Materials Research Part B Applied Biomaterials
The packaging and chemical stability of both conventional and highly crosslinked polyethylene (PE) components available for clinical use in Italy were analyzed. A total of 100 sterilized PE components were entered by 18 orthopedic manufacturers into the study. Six of the manufacturers were Italian and the remaining we…
Polymer crystallization and propertiesOrthopaedic implants and arthroplastyInjection Molding Process and Properties
Shinae Jun、Eunjoo Jang、Jongjin Park 等 4 位作者2006-02-07Langmuir
We demonstrate the ability to use a photolithographic method to make patterned nanocrystal film for device applications. Exposing a nanocrystal film to strong UV light allowed the oleic acid ligands on the surface of the nanocrystals to form an insoluble cross-linked network while the unexposed areas were still solubl…
Advanced biosensing and bioanalysis techniquesQuantum Dots Synthesis And PropertiesChalcogenide Semiconductor Thin Films
Shanju Zhang、Ian A. Kinloch、Alan H. Windle2006-02-07Nano Letters
We describe a simple method for separating carbon nanotubes on the basis of their mesogenicity by fractionating biphasic aqueous suspensions within the Flory chimney of the lyotropic phase diagram. Macroscopic phase separation occurs on centrifuging the biphasic nanotube suspension or allowing it to stand. Long, strai…
Carbon Nanotubes in CompositesForce Microscopy Techniques and ApplicationsNanopore and Nanochannel Transport Studies
Lehui Lu、Alexander Eychmüller、Atsuko Kobayashi 等 8 位作者2006-02-07Langmuir
This article reports the designed preparation of two different kinds of novel porous metal nanostructured films, namely, an ordered macroporous Au/Ag nanostructured film and an ordered hollow Au/Ag nanostructured film. Different from previous reports, the presently proposed method can be conveniently used to control f…
Gold and Silver Nanoparticles Synthesis and ApplicationsNanocluster Synthesis and ApplicationsNanoporous metals and alloys
Tokeer Ahmad、Sonalika Vaidya、Niladri Sarkar 等 5 位作者2006-02-07Nanotechnology
Nanorods of zinc oxalate dihydrate have been synthesized using the reverse micellar route. These nanorods were decomposed at 450 °C in air to obtain nanoparticles of zinc oxide. Transmission electron microscopy shows the nanorods to be 120 nm in diameter and 600 nm in length. The ZnO nanoparticles are 55 nm in diamete…
ZnO doping and propertiesPerovskite Materials and ApplicationsQuantum Dots Synthesis And Properties
Rodrigo Fernández‐Pacheco、Manuel Arruebo、C. Marquina 等 6 位作者2006-02-07Nanotechnology
In spite of encouraging progress in recent years, the development of magnetic nanoparticles that can be used as drug delivery vectors remains a significant challenge for materials scientists. Among the multiple hurdles that must be overcome are the provision of a sufficiently high magnetic response, a high loading cap…
Nanoparticle-Based Drug DeliveryCarbon Nanotubes in CompositesDiamond and Carbon-based Materials Research
P. Padma Kumar、Andrey G. Kalinichev、R. James Kirkpatrick2006-02-07The Journal of Physical Chemistry B
Molecular dynamics (MD) simulation of the Mg/Al (3:1) layered double hydroxide (LDH), hydrotalcite (HT), containing citrate, C6H5O7(3-), as the charge balancing interlayer anion provides new molecular scale insight into the interlayer structure, hydrogen bonding, and energetics of the hydration and consequent swelling…
Clay minerals and soil interactionsLayered Double Hydroxides Synthesis and ApplicationsPhosphorus and nutrient management
Toshiyuki Matsunaga、Rie Kojima、Noboru Yamada 等 7 位作者2006-02-07Inorganic Chemistry
GeTe(1-x)-Sb2Te3(x) sputtered amorphous film was crystallized into a simple NaCl-type structure through instantaneous laser irradiation over a wide composition range from x = 0 to at least 2/3. When the ratio of Sb2Te3 increases, a vacancy is generated at every Na site for two Sb atoms. The fraction of vacancies, v(x)…
Chalcogenide Semiconductor Thin FilmsCrystal Structures and PropertiesPhase-change materials and chalcogenides
Wataru Nakao、Shuntaro Mori、Jun Nakamura 等 6 位作者2006-02-07Journal of the American Ceramic Society
To improve fracture toughness and encourage excellent self‐crack‐healing ability, mullite/SiC particle/SiC whisker multi‐composites and mullite/SiC whisker composites were hot pressed. The crack‐healing abilities and mechanical properties of these sintered composites were investigated. Based on the obtained results, t…
Advanced ceramic materials synthesisMXene and MAX Phase MaterialsAdvanced materials and composites
Zhijie Xu、Catalin R. Picu2006-02-07Modelling and Simulation in Materials Science and Engineering
The close-range interaction of dislocations and solute clusters in the Al–Mg binary system is studied by means of atomistic simulations. We evaluate the binding energy per unit length of dislocations to the thermodynamically stable solute atmospheres that form around their cores, at various temperatures and average so…
Microstructure and mechanical propertiesAluminum Alloy Microstructure PropertiesHigh Temperature Alloys and Creep
A. Pimenov、A. A. Mukhin、V. Yu. Ivanov 等 6 位作者2006-02-07arXiv
Magnetodielectric materials are characterized by a strong coupling of magnetic and dielectric properties and in rare cases simultaneously exhibit both, magnetic and polar order. Among other multiferroics, TbMnO3 and GdMnO3 reveal a strong magneto-dielectric (ME) coupling and as a consequence fundamentally new spin exc…
Materials ScienceStrongly Correlated Electrons
Oswaldo Diéguez、David Vanderbilt2006-02-07Physical Review Letters
We develop an exact formalism for performing first-principles calculations for insulators at fixed electric polarization. As shown by Sai, Rabe, and Vanderbilt (SRV) [Phys. Rev. B 66, 104108 (2002)], who designed an approximate method to tackle the same problem, such an approach allows one to map out the energy landsc…
Physics of Superconductivity and MagnetismMachine Learning in Materials ScienceElectronic and Structural Properties of Oxides
P. Jiji Thomas Joseph、Prabhakar P. Singh2006-02-07arXiv
First-principles, density-functional-based electronic structure calculations are employed to study the changes in the electronic properties of ZnC_{y}Ni_{3} and MgC_{y}Ni_{3} using the Korringa-Kohn-Rostoker coherent-potential approximation method in the atomic sphere approximation (KKR-ASA CPA). As a function of decr…
Materials ScienceSuperconductivity