James G. Longstaffe、André J. Simpson2011-04-29Environmental Toxicology and Chemistry
A combination of forward and reverse heteronuclear ((19)F/(1)H) saturation transfer difference (STD) nuclear magnetic resonance (NMR) spectroscopic techniques were applied to characterize the noncovalent interactions between perfluorinated aromatic xenobiotics and dissolved humic acid. These NMR techniques produce det…
Lanthanide and Transition Metal ComplexesPer- and polyfluoroalkyl substances researchIsotope Analysis in Ecology
Michael Holt、O. P. Sushkov、Daniel Stanek 等 4 位作者2011-04-29Physical Review B
A possibility to describe magnetism in the iron pnictide parent compounds in terms of the two-dimensional frustrated Heisenberg ${J}_{1}$-${J}_{2}$ model has been actively discussed recently. However, recent neutron-scattering data have shown that the pnictides have a relatively large spin-wave dispersion in the direc…
Physics of Superconductivity and MagnetismAdvanced Condensed Matter PhysicsIron-based superconductors research
Weihua Guo、Jian Zhu、Zhenping Cheng 等 5 位作者2011-04-29ACS Applied Materials & Interfaces
Polished 316 L stainless steel (SS) was first treated with air plasma to enhance surface hydrophilicity and was subsequently allowed to react with 2-(4-chlorosulfonylphenyl)ethyltrimethoxysilane to introduce an atom transfer radical polymerization (ATRP) initiator. Accordingly, the surface-initiated atom transfer radi…
Surface Modification and SuperhydrophobicityElectrospun Nanofibers in Biomedical ApplicationsPolymer Surface Interaction Studies
Yi Liu、Qingfeng Dong、Haotong Wei 等 8 位作者2011-04-29The Journal of Physical Chemistry C
In this paper, we demonstrated a modified hot-injection method to synthesize high-quality Cu 2– x Se nanocrystals (NCs) in liquid paraffin without using the hazardous and unstable alkylphosphines as the ligand of Se. The key of this method is the capability for tuning the reactivity of Se at the stage of formation of…
Quantum Dots Synthesis And PropertiesChalcogenide Semiconductor Thin FilmsCopper-based nanomaterials and applications
Sofia Målberg、Anders Höglund、Ann‐Christine Albertsson2011-04-29Biomacromolecules
An innovative type of triblock copolymer that maintains and even increases the mechanical properties of poly(l-lactide) (PLLA) and poly(ε-caprolactone) (PCL) with a controlled, predictable, and rapid degradation profile has been synthesized. Elastic triblock copolymers were formed from the hydrophobic and crystalline…
Bone Tissue Engineering Materialsbiodegradable polymer synthesis and propertiesElectrospun Nanofibers in Biomedical Applications
Seymur Cahangirov、S. Çiraci2011-04-29Physical Review B
Single-layer core-shell structures consisting of graphene as the core and hexagonal boron nitride as the shell are studied using the first-principles plane-wave method within density functional theory. Electronic energy level structure is analyzed as a function of the size of both core and shell. It is found that the…
Graphene research and applicationsQuantum and electron transport phenomenaBoron and Carbon Nanomaterials Research
Olga A. Babanova、Alexei V. Soloninin、A.V. Skripov 等 6 位作者2011-04-29The Journal of Physical Chemistry C
To study the reorientational motion of the BH 4 groups in RbBH 4 and CsBH 4, we have performed nuclear magnetic resonance (NMR) measurements of the 1 H and 11 B spin–lattice relaxation rates in these compounds over wide ranges of temperature (48–400 K) and resonance frequency (14–90 MHz). It is found that at low tempe…
Hydrogen Storage and MaterialsQuantum, superfluid, helium dynamicsSuperconductivity in MgB2 and Alloys
J. C. del Real、Yolanda Ballesteros、R. Chamochin 等 5 位作者2011-04-29The Journal of Adhesion
The surface modification and adhesive bonding of a carbon fiber reinforced plastic (CFRP) composite has been investigated. Wettability studies showed that plasma-treated specimens provide a significant increment in the surface energy, relative to untreated material. The surface modification resulted in significantly i…
Surface Modification and SuperhydrophobicityAdditive Manufacturing and 3D Printing TechnologiesFiber-reinforced polymer composites
Thomas A. Baker、Oliver L. A. Monti、David J. Nesbitt2011-04-29The Journal of Physical Chemistry C
Stable, intensely Raman active silver nanoparticles are photogenerated by visible light from silver ions in a thin polymer film within a diffraction-limited focal area. The emission is resolved both spectrally and temporally to demonstrate that the source of the signal is surface-enhanced Raman scattering (SERS) from…
Gold and Silver Nanoparticles Synthesis and ApplicationsElectrochemical Analysis and ApplicationsNonlinear Optical Materials Studies
Jenny R. Roberts、Rebecca Chapman、Vijay R. Tirumala 等 9 位作者2011-04-29Journal of Toxicology and Environmental Health
Fine- and coarse-sized titanium dioxide (TiO₂) particles are considered to be relatively inert when inhaled. The goal of this study was to assess potential lung toxicity associated with well-characterized, non-dispersed rutile TiO₂ nanorods (10 × 40 nm). In vitro bioreactivity of TiO₂ nanorods was determined by electr…
Nanoparticles: synthesis and applicationsAir Quality and Health Impacts
Narendra Pal Singh Chauhan、Rakshit Ameta、Suresh C. Ameta2011-04-29Journal of Macromolecular Science Part A
The terpolymer resins have been synthesized by the condensation of p- hydroxyacetophenone and p-chloroacetophenone with formaldehyde/furfuraldehyde in the presence of catalyst in 1:1:5 molar proportions of reactants. The molecular structures were confirmed by FT-IR and Pyrolysis GC-MS. The number average molecular wei…
Inorganic and Organometallic ChemistryRailway Systems and Materials SciencePolymer Synthesis and Characterization
Sean A. Fischer、Oleg V. Prezhdo2011-04-29The Journal of Physical Chemistry C
Doping has been critical to the realization of current semiconductor devices, allowing for control and tuning of the electronic properties. Whereas doping is now common in bulk, its extension to spatially confined materials has not been easy. Recently, suitable synthetic methods have been developed, and it has become…
Quantum Dots Synthesis And PropertiesChalcogenide Semiconductor Thin FilmsSemiconductor materials and interfaces
Jozef Adamčík、Valeria Castelletto、Sreenath Bolisetty 等 5 位作者2011-04-29Angewandte Chemie
Fibrillenbildung in Peptiden: Strukturen, die während der zeitabhängigen Selbstorganisation eines Amyloidheptapeptids entstehen, wurden mit Einzelmolekültechniken der Rasterkraftmikroskopie aufgelöst. Die statistische Analyse und ihre topologischen Details zeigen eine konstante zeitliche Entwicklung von polymorphen St…
Lipid Membrane Structure and BehaviorChemical Synthesis and AnalysisSupramolecular Self-Assembly in Materials
Alejandro Ansón‐Casaos、Mónica C. González、José M. González‐Domínguez 等 4 位作者2011-04-29Langmuir
Arc discharge single-walled carbon nanotube (SWCNT) soot was treated under different experimental conditions including gas- and liquid-phase oxidation, heat treatment in an inert gas, and hydrogen gasification. Afterward, the samples were dispersed in a surfactant and centrifuged at a moderately high speed. Near-infra…
Carbon Nanotubes in CompositesGraphene research and applicationsNanotechnology research and applications
Patrik Ščajev、T. Malinauskas、L. Lubys 等 7 位作者2011-04-29physica status solidi (RRL) - Rapid Research Letters
Abstract We report on a novel approach for the contactless, all‐optical study of ambipolar carrier diffusion in single‐crystalline diamond layers. Using interband two‐photon and single photon absorption (at 351 nm and 213 nm), we created a spatially‐modulated free‐carrier light‐induced transient grating and monitored…
High-pressure geophysics and materialsDiamond and Carbon-based Materials ResearchElectronic and Structural Properties of Oxides
Francisco Rosário、Wagner Maurício Pachekoski、Ana Patricia Silveira 等 6 位作者2011-04-29Polímeros
Foram estudadas as propriedades térmicas e mecânicas de compósitos de polipropileno, virgem e reciclado, reforçados com 30% em massa de fibras residuais de sisal, assim como o perfil de processamento e a morfologia da matriz polimérica. Para tanto, foram determinadas a resistência à tração, o módulo de Young, alongame…
Mechanical Behavior of CompositesNatural Fiber Reinforced CompositesFiber-reinforced polymer composites
Nicoletta Depalo、Pasquale Carrieri、Roberto Comparelli 等 9 位作者2011-04-29Langmuir
Asymmetric binary nanocrystals (BNCs) formed by a spherical γ-Fe(2)O(3) magnetic domain epitaxially grown onto a lateral facet of a rodlike anatase TiO(2) nanorod have been functionalized with PEG-terminated phospholipids, resulting in a micellar system that enables the BNC dispersion in aqueous solution. The further…
Nanoparticle-Based Drug DeliveryQuantum Dots Synthesis And PropertiesAdvanced Nanomaterials in Catalysis
Sarah E. Bryan、Yinxiao Yang、Raghunath Murali2011-04-29The Journal of Physical Chemistry C
We present an experimental investigation of the impact of size effects on conductance in nanoribbons fabricated from epitaxial graphene. The material resistivity is seen to increase significantly (up to 13× for 50 nm wide ribbons) upon conversion from bulk graphene to nanoribbons. As the ribbon width is scaled below 1…
Advancements in Battery MaterialsGraphene research and applicationsQuantum and electron transport phenomena
A. Dhathathreyan2011-04-29The Journal of Physical Chemistry B
In this work, we demonstrate the activity of enzyme invertase immobilized in the pores of nanoporous anodized 3 μm thick aluminum oxide (AA). The porous anodic alumina has uniform nanosized pores with an interpore distance of p = 100 nm, with pore diameters on the order of 60-65 nm. The pores trap the enzyme and conti…
Mesoporous Materials and CatalysisAnodic Oxide Films and NanostructuresNanoporous metals and alloys
Enrique del Río、Gerard Lligadas、Juan C. Ronda 等 6 位作者2011-04-29Macromolecular Chemistry and Physics
Abstract The synthesis of branched polyols from glyceryl triundec‐10‐enoate by acyclic triene metathesis polymerization (ATMET) is reported. 10‐Undecenol is used as a monofunctional comonomer to end‐cap polymer chains, functionalize the periphery of the resulting branched materials, and to control the molecular weight…
Polymer composites and self-healingMarine Sponges and Natural ProductsSynthetic Organic Chemistry Methods