Marcus Müller、Grant D. Smith2005-03-08Journal of Polymer Science Part B Polymer Physics
Abstract We discuss a phenomenological, coarse‐grained simulation scheme, single‐chain‐in‐mean‐field (SCMF) simulation, for investigating the kinetics of phase separation in dense polymer blends and mixtures of polymers and solvents. In the spirit of self‐consistent‐field calculations, we approximate the interacting m…
Material Dynamics and PropertiesTheoretical and Computational PhysicsBlock Copolymer Self-Assembly
A. H. MacDonald、P. Schiffer、N. Samarth2005-03-08arXiv
The recent development of MBE techniques for growth of III-V ferromagnetic semiconductors has created materials with exceptional promise in spintronics, i.e. electronics that exploit carrier spin polarization. Among the most carefully studied of these materials is (Ga,Mn)As, in which meticulous optimization of growth…
Materials Science
Lining Sun、Hongjie Zhang、Qingguo Meng 等 9 位作者2005-03-08The Journal of Physical Chemistry B
The crystal structures of ternary Ln(DBM)(3)phen complexes (DBM = dibenzoylmethane, phen = 1,10-phenanthroline, and Ln = Nd, Yb) and their in situ syntheses via the sol-gel process are reported. The properties of the Ln(DBM)(3)phen complexes and their corresponding Ln(3+)/DBM/phen-co-doped luminescent hybrid gels obta…
Luminescence Properties of Advanced MaterialsMagnetism in coordination complexesLanthanide and Transition Metal Complexes
S. Dhillon、J. Alton、S. Barbieri 等 8 位作者2005-03-08arXiv
THz quantum cascade lasers based on a novel buried cavity geometry are demonstrated by combining double-metal waveguides with proton implantation. Devices are realised with emission at 2.8 THz, displaying ultra low threshold currents of 19 mA at 4K in both pulsed and continuous wave operation. Thanks to the semiconduc…
Mesoscale and Nanoscale PhysicsMaterials Science
G. N. Ostojic、S. Zaric、Junichiro Kono 等 6 位作者2005-03-08Physical Review Letters
Through ultrafast pump-probe spectroscopy with intense pump pulses and a wide continuum probe, we show that interband exciton peaks in single-walled carbon nanotubes (SWNTs) are extremely stable under high laser excitations. Estimates of the initial densities of excitons from the excitation conditions, combined with r…
Carbon Nanotubes in CompositesForce Microscopy Techniques and ApplicationsMechanical and Optical Resonators
Anirban Mudi、Charusita Chakravarty、Ramakrishna Ramaswamy2005-03-08The Journal of Chemical Physics
Power spectra for various tagged particle quantities in bulk extended simple point charge model water [H. J. C. Berendsen, J. R. Grigera, and T. P. Straatsma, J. Phys. Chem. 91, 6269 (1987)] are shown to have a regime with 1f(alpha) dependence on frequency f with alpha lying between 1 and 1.5 if the dynamical changes…
Material Dynamics and PropertiesThermodynamic properties of mixturesSpectroscopy and Quantum Chemical Studies
Janina Kneipp、Harald Kneipp、William L. Rice 等 4 位作者2005-03-08Analytical Chemistry
We report surface-enhanced Raman scattering (SERS) studies on indocyanine green (ICG) on colloidal silver and gold and demonstrate a novel optical probe for applications in living cells. In addition to its own detection by the characteristic ICG SERS signatures, the ICG gold nanoprobe delivers spatially localized chem…
Gold and Silver Nanoparticles Synthesis and ApplicationsAdvanced biosensing and bioanalysis techniquesSpectroscopy Techniques in Biomedical and Chemical Research
Hiroshi Yabu、Masafumi Takebayashi、Masaru Tanaka 等 4 位作者2005-03-08OpenAlex
This report describes the simple preparation of superhydrophobic and lipophobic surfaces by self-organization. Microporous polymer films of a fluorinated polymer with hexagonally arranged pores were prepared by casting from solution under humid conditions. Hexagonally packed water microdroplets were formed by evaporat…
Surface Modification and SuperhydrophobicityAdvanced Sensor and Energy Harvesting MaterialsFluid Dynamics and Thin Films
Mingxia Yu、Jun Lin、Jiye Fang2005-03-08OpenAlex
Spherical SiO 2 particles have been successfully coated with YVO 4:Eu 3+ phosphor layers through a Pechini sol−gel process. The resulted YVO 4:Eu 3+ @SiO 2 core−shell phosphors were characterized by X-ray diffraction (XRD), Fourier-transform IR spectroscopy, scanning electron microscopy, X-ray photoelectron spectra, t…
Advanced Photocatalysis TechniquesLuminescence Properties of Advanced MaterialsPerovskite Materials and Applications
Erika Artukovic、M. Kaempgen、David S. Hecht 等 5 位作者2005-03-08OpenAlex
We report the fabrication of transparent and flexible transistors where both the bottom gate and the conducting channel are carbon nanotube networks of different densities and Parylene N is the gate insulator. Device mobilities of 1 cm(2) V(-1) s(-1) and on/off ratios of 100 are obtained, with the latter influenced by…
Carbon Nanotubes in CompositesMechanical and Optical ResonatorsNeuroscience and Neural Engineering
Weimin Huang、Bin Yang、Li An 等 5 位作者2005-03-08OpenAlex
We demonstrate the new features of a polyurethane shape memory polymer: water-driven actuation and recovery in sequence (i.e., programmable). Hydrogen bonding is identified as the reason behind these features. In addition, the absorbed water is quantitatively separated into two parts, namely, the free water and bound…
Polymer composites and self-healingMarine Sponges and Natural ProductsPhotochromic and Fluorescence Chemistry
D. Reznik、W. Reichardt2005-03-07Physical Review B
Longitudinal optical phonons with oxygen character were measured in ${\mathrm{La}}_{0.7}{\mathrm{Sr}}_{0.3}\mathrm{Mn}{\mathrm{O}}_{3}$ by inelastic neutron scattering in the (1 0 0) cubic direction and results were compared with shell model predictions. Measurements were performed in several Brillouin zones, which en…
High-pressure geophysics and materialsMagnetic and transport properties of perovskites and related materialsAdvanced Condensed Matter Physics
Shahin Shafiani、Pawan Sharma、Rakesh M. Vohra 等 4 位作者2005-03-07Journal of Applied Microbiology
AIMS: To clone and characterize the aspartate-beta-semialdehyde dehydrogenase of Mycobacterium tuberculosis H37Rv. METHODS AND RESULTS: The asd gene of M. tuberculosis H37Rv was cloned in pGEM-T Easy vector, subcloned in expression vector pQE30 having a T5 promoter, and overexpressed in Escherichia coli. The ASD enzym…
Enzyme Structure and FunctionEnzyme Production and CharacterizationAmino Acid Enzymes and Metabolism
Donald R. Baer2005-03-07Surface and Interface Analysis
Abstract International Standard ISO 19318 specifies the minimum amount of information describing the methods of charge control and charge correction in measurements of core‐level binding energies for insulating specimens by x‐ray photoelectron spectroscopy, which is to be reported with the analytical results. Informat…
Semiconductor materials and devicesElectron and X-Ray Spectroscopy TechniquesGa2O3 and related materials
Gabriella Kiskó、R. Sharp、Sibel Roller2005-03-07Journal of Applied Microbiology
AIMS: To develop new measures for controlling both spoilage and pathogenic micro-organisms in unpasteurized apple juice using chitosan. METHODS AND RESULTS: Micro-organisms were isolated and identified from apple juice treated or untreated with chitosan using enrichment, selective media, microscopy, substrate assimila…
Nanocomposite Films for Food PackagingListeria monocytogenes in Food SafetyFood Safety and Hygiene
Wuwei Liang、Min Zhou2005-03-07Journal of Engineering Materials and Technology
Molecular dynamics simulations are carried out to analyze the structure and mechanical behavior of Cu nanowires with lateral dimensions of 1.45–2.89 nm. The calculations simulate the formation of nanowires through a “top-down” fabrication process by “slicing” square columns of atoms from single-crystalline bulk Cu alo…
Microstructure and mechanical propertiesShape Memory Alloy TransformationsNonlocal and gradient elasticity in micro/nano structures
Vanee Chonhenchob、S. Paul Singh2005-03-07Packaging Technology and Science
Abstract This paper presents the development and testing procedures for new packaging systems for papaya fruit. Papaya is a nutritious tropical fruit, consumed both in its fresh form and as a processed product worldwide. Thailand is a major exporter of fresh and processed papayas from Asia. Major quality indices for p…
Postharvest Quality and Shelf Life ManagementNanocomposite Films for Food Packaging
S. Verdier、Stéphane Delalande、Nicole Van der Laak 等 5 位作者2005-03-07Surface and Interface Analysis
Abstract The behaviour of the 6% aluminium–magnesium alloy (AM60) surface in zirconium or titanium fluoride aqueous acid solutions was studied. X‐ray photoelectron spectroscopy was used to investigate modifications in the surface chemistry with respect to the composition of the surface treatment solution. The surface…
Corrosion Behavior and InhibitionMagnesium Alloys: Properties and ApplicationsMXene and MAX Phase Materials
Achim Hartschuh、Hermenegildo N. Pedrosa、Jeffrey J. Peterson 等 10 位作者2005-03-07ChemPhysChem
This Minireview discusses novel insights into the electronic structure of carbon nanotubes obtained using single-molecule fluorescence spectroscopy. Fluorescence spectra from single nanotubes are well described by a single, Lorentzian lineshape. Nanotubes with identical structures fluoresce with different energies due…
Carbon Nanotubes in CompositesMolecular Junctions and NanostructuresMechanical and Optical Resonators
Noriyasu Kawai、Akira Itô、Yoko Nakahara 等 8 位作者2005-03-07The Prostate
BACKGROUND: The hyperthermic effect of magnetic particles was examined in rat prostate cancer in vivo. Magnetic cationic liposomes (MCLs) have a positive surface charge and generate heat in an alternating magnetic field (AMF) due to hysteresis losses. METHODS: Rat prostate cancer cells (PLS 10; androgen independent) w…
Nanoparticle-Based Drug DeliveryUltrasound and Hyperthermia ApplicationsToxin Mechanisms and Immunotoxins