Hideto Tsuji、Kohji Tashiro、Leevameng Bouapao 等 4 位作者2012-09-14Macromolecular Chemistry and Physics
Abstract Poly( L ‐lactide) (PLLA) and poly( L ‐lactide‐ co ‐glycolide) (78/22)0 [P(LLA‐GA)] were phase‐separated in PLLA/P(LLA‐GA) blends, forming independent domains and thence crystallizing separately. The crystallization of PLLA was not disturbed or delayed by the presence of P(LLA‐GA) and vice versa. PLLA and poly…
biodegradable polymer synthesis and propertiesMicroplastics and Plastic PollutionAdditive Manufacturing and 3D Printing Technologies
V. Felea、S. Yasin、A. Günther 等 10 位作者2012-09-14Physical Review B
Ultrasound and magnetization studies of the frustrated spinel ZnCr${}_{2}$Se${}_{4}$ are performed as a function of temperature and magnetic field up to 14 T. In zero field, the sound velocity and attenuation reveal significant anomalies at the antiferromagnetic transition at ${T}_{N}\ensuremath{\approx}$ 21 K indicat…
Magnetic and transport properties of perovskites and related materialsMultiferroics and related materialsAdvanced Condensed Matter Physics
Guangxi Huang、Guanxin Zhang、Yishi Wu 等 6 位作者2012-09-14Asian Journal of Organic Chemistry
Abstract Green fluorescent protein (GFP)‐like chromophores 1 – 5 , in which the p ‐hydroxylphenyl group is substituted with large aromatic moieties, were synthesized and their crystal structures were determined. Compared with that of p ‐hydroxybenzylideneimidazolinone (GFP chromophore), the fluorescence spectra of 1 –…
Advanced Fluorescence Microscopy TechniquesLuminescence and Fluorescent MaterialsSupramolecular Self-Assembly in Materials
Juan Pedro Bretas Roa、Patrícia Santiago de Oliveira Patricio、Rodrigo Lambert Oréfice 等 4 位作者2012-09-14Journal of Applied Polymer Science
Abstract In this work, blends of poly(3‐hydroxybutyrate) (PHB) with 5, 10, 15, and 20 wt % low molecular weight poly(propylene glycol) (LMWPPG) have been prepared and characterized by scanning electron microscopy (SEM), Fourier transform infrared (FTIR) with attenuated total reflectance (ATR) accessory and simultaneou…
Polymer crystallization and propertiesbiodegradable polymer synthesis and propertiesCarbon dioxide utilization in catalysis
Xiangsheng Liu、Huiguang Zhu、Qiao Jin 等 6 位作者2012-09-14Advanced Healthcare Materials
Facile surface modification of quantum dots (QDs) to make them water-soluble, small, stable, antibiofouling, and functional is crucial for their biological applications. This study demonstrates a simple ligand-exchange reaction to convert hydrophobic CdSe/ZnS QDs into water-soluble QDs using amphiphilic, zwitterionic…
Advanced biosensing and bioanalysis techniquesQuantum Dots Synthesis And PropertiesNanocluster Synthesis and Applications
Dennis Kurzbach、Martina Schömer、Valerie S. Wilms 等 5 位作者2012-09-14Macromolecules
Continuous wave electron paramagnetic resonance (CW EPR) spectroscopy on the amphiphilic spin probe TEMPO in solutions of selectively chosen functional, thermoresponsive poly(propylene oxide) (PPO)- and poly(ethylene oxide) (PEO)-based copolymers of both linear and branched structure is used to elucidate their host–gu…
Advanced Polymer Synthesis and CharacterizationConducting polymers and applicationsPolymer Surface Interaction Studies
Maksym F. Prodanov、Максим А. Колосов、Alexander I. Krivoshey 等 8 位作者2012-09-14Liquid Crystals
In order to enhance the phase stability of dispersions of magnetic nanoparticles (NPs) in a polymorphic liquid crystal, new ligands have been designed consisting of a terphenyl-based liquid crystalline core. The most stable dispersions were obtained with 7 nm super-paramagnetic Fe3O4 NPs decorated with the new ligands…
Liquid Crystal Research AdvancementsSurfactants and Colloidal SystemsCharacterization and Applications of Magnetic Nanoparticles
Francisco Mireles、John Schliemann2012-09-14New Journal of Physics
We present a theoretical study of the band structure and Landau levels in bilayer graphene at low energies in the presence of a transverse magnetic field and Rashba spin–orbit interaction in the regime of negligible trigonal distortion. Within an effective low-energy approach the (Löwdin partitioning theory), we deriv…
Graphene research and applicationsQuantum and electron transport phenomenaTopological Materials and Phenomena
Jamieson K. Christie、Antonio Tilocca2012-09-14The Journal of Physical Chemistry B
The low solubility (high durability) of yttrium aluminosilicate (YAS) glass is one of its most important properties for use in in situ radiotherapy. Simple parameters, such as silica or yttria content or network connectivity, are not sufficient to rationalize the dependence of the solubility on the glass composition o…
Luminescence Properties of Advanced MaterialsGlass properties and applicationsNuclear materials and radiation effects
Johanna Laakso、Geraldine A. Rosser、Csongor Szíjjártó 等 5 位作者2012-09-14Inorganic Chemistry
Lanthanide (Yb(3+), Nd(3+)) complexes equipped with red-absorbing hydroporphyrin (chlorin) antennae were synthesized and characterized. The syntheses are scalable, highly modular, and enable the introduction of different chlorins functionalized with a single reactive group (COOH or NH(2)). Absorption maxima were depen…
Molecular Sensors and Ion DetectionLanthanide and Transition Metal ComplexesSulfur Compounds in Biology
Placidus B. Amama、John T. Grant、Patrick J. Shamberger 等 5 位作者2012-09-14The Journal of Physical Chemistry C
The dehydrogenation properties of LiAlH 4 doped with different Ti precursors (Ti, TiO 2, and TiCl 3 ) via ball milling are investigated. The results not only show significant decreases in the decomposition temperatures ( T dec ) and activation energies ( E A ) of the first two dehydrogenation reaction steps of LiAlH 4…
Hydrogen Storage and MaterialsAmmonia Synthesis and Nitrogen ReductionSuperconductivity in MgB2 and Alloys
Nunzio Roberto D’Amico、Giovanni Cantele、D. Ninno2012-09-14The Journal of Physical Chemistry C
We report on a theoretical study of the nonpolar ZnO (101̅0) and (112̅0) surfaces carried out in the framework of density functional theory, aiming to elucidate the thermodynamic and kinetic stability of the clean surface against the formation and diffusion of oxygen vacancies. At variance with other oxide materials a…
ZnO doping and propertiesGas Sensing Nanomaterials and SensorsElectronic and Structural Properties of Oxides
Kyungwho Choi、Choongho Yu2012-09-14PLoS ONE
Carbon nanotubes (CNTs) are often used as conductive fillers in composite materials, but electrical conductivity is limited by the maximum filler concentration that is necessary to maintain composite structures. This paper presents further improvement in electrical conductivity by precipitating gold nanoparticles onto…
Carbon Nanotubes in CompositesAdvanced Sensor and Energy Harvesting MaterialsConducting polymers and applications
Thomas G. Barclay、Kristina T. Constantopoulos、Wei Zhang 等 5 位作者2012-09-14Langmuir
Four amphiphiles with L-aspartic acid headgroups (Asp) and a diphenyldiazenyl group (Azo) contained within the hydrophobic tails were designed and synthesized for self-assembly into helically based nanotubes. The amphiphiles of the form R'-{4-[(4-alkylphenyl)diazenyl]phenoxy}alkanoyl-L-aspartic acid (where R' is 10 or…
Lipid Membrane Structure and BehaviorSupramolecular Self-Assembly in MaterialsPolydiacetylene-based materials and applications
Jianshe Hu、Dan Li、Wenchang Zhang 等 4 位作者2012-09-14Journal of Polymer Science Part A Polymer Chemistry
Abstract To study structure–mesomorphism relationships of the monomers and polymers based on menthol, four new chiral monomers ( M 1 – M 4 ) and the corresponding homopolymers ( P 1 – P 4 ) with menthyl group were synthesized. Their chemical structures, formula, phase behavior, and thermal stability were characterized…
Liquid Crystal Research AdvancementsPhotochromic and Fluorescence ChemistryMolecular spectroscopy and chirality
Wei-Cheng Lee、Weicheng Lv、J. M. Tranquada 等 4 位作者2012-09-14Physical Review B
We show here that orbital degrees of freedom produce a distinct signature in the magnetic excitation spectrum of iron-based superconductors above the magnetic ordering temperature. Because ${d}_{xz}$ and ${d}_{yz}$ orbitals are strongly connected with Fermi surface topology, the nature of magnetic excitations can be m…
Rare-earth and actinide compoundsCorporate Taxation and AvoidanceIron-based superconductors research
Su‐Qin Zhou、Xiao‐Chun Cheng、Yeling Jin 等 5 位作者2012-09-14Journal of Applied Polymer Science
Abstract The method of molecular dynamics (MD) simulations was used to investigate the interaction between the PLA and the attapulgite, and the influence of the temperature on the mechanical properties of the PLA and the PLA‐attapulgite. After the PLA blends the attapulgite, the structures and properties of the PLA an…
Polymer crystallization and propertiesbiodegradable polymer synthesis and propertiesMicroplastics and Plastic Pollution
Xue Gao、Xiao-Xi Yuan、Zhenyu Shi 等 8 位作者2012-09-14Microbial Cell Factories
BACKGROUND: Microbial polyhydroxyalkanoates (PHA) are biopolyesters consisting of diverse monomers. PHA synthase PhaC2Ps cloned from Pseudomonas stutzeri 1317 is able to polymerize short-chain-length (scl) 3-hydroxybutyrate (3HB) monomers and medium-chain-length (mcl) 3-hydroxyalkanoates (3HA) with carbon chain length…
biodegradable polymer synthesis and propertiesCatalysis for Biomass ConversionCarbon dioxide utilization in catalysis
Joost de Graaf、Niels Boon、Marjolein Dijkstra 等 4 位作者2012-09-14The Journal of Chemical Physics
In this paper we study the electrostatic properties of "Janus" spheres with unequal charge densities on both hemispheres. We introduce a method to compare primitive-model Monte Carlo simulations of the ionic double layer with predictions of (mean-field) nonlinear Poisson-Boltzmann theory. We also derive practical Derj…
Surfactants and Colloidal SystemsPickering emulsions and particle stabilizationElectrostatics and Colloid Interactions
Wei Zhao、Thomas P. Russell、Gregory M. Grason2012-09-14The Journal of Chemical Physics
We study the phase behavior of diblock copolymer melts with one block possessing orientation-dependent segmental interactions using self-consistent field theory. A generalized coarse-grained description is introduced based on the local (polar) orientational order parameter and K, an effective Frank elastic constant fo…
Theoretical and Computational PhysicsRheology and Fluid Dynamics StudiesBlock Copolymer Self-Assembly