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Fano Resonances in Terahertz Metasurfaces: A Figure of Merit Optimization

Longqing Cong、Manukumara Manjappa、Ningning Xu 等 6 位作者2015-08-12Advanced Optical Materials

An operation range of the figure of merit (FoM) that reflects the trade-off between Q factor and resonance intensity of the Fano resonance is provided. The structural asymmetry parameter α = (l1 − l2)/(l1 + l2) × 100% in the resonator determines the FoM that has an optimized band of operation for asymmetry ranging fro…

Metamaterials and Metasurfaces ApplicationsMicrowave Engineering and WaveguidesPlasmonic and Surface Plasmon Research

[Cr(ddpd)2]3+: A Molecular, Water‐Soluble, Highly NIR‐Emissive Ruby Analogue

S. Otto、Markus Grabolle、Christoph Förster 等 6 位作者2015-08-12Angewandte Chemie International Edition

Bright, long-lived emission from first-row transition-metal complexes is very challenging to achieve. Herein, we present a new strategy relying on the rational tuning of energy levels. With the aid of the large N-Cr-N bite angle of the tridentate ligand ddpd (N,N'-dimethyl-N,N'-dipyridine-2-ylpyridine-2,6-diamine) and…

Magnetism in coordination complexesLuminescence and Fluorescent MaterialsLanthanide and Transition Metal Complexes

Percolation threshold and electrical conductivity of graphene-based nanocomposites with filler agglomeration and interfacial tunneling

Yang Wang、Jerry W. Shan、George J. Weng2015-08-12Journal of Applied Physics

The dispersion state or degree of agglomeration of graphene is known to have a significant influence on the percolation threshold and electrical conductivity of graphene-based polymer nanocomposites. In addition, an imperfectly conducting interface and tunneling-assisted interfacial conductivity can also affect the ov…

Carbon Nanotubes in CompositesGraphene research and applicationsSurface and Thin Film Phenomena

Size-Dependent Lymphatic Uptake of Nanoscale-Tailored Particles As Tumor Mass Increases

Pontus Kjellman、Sarah Fredriksson、Christian Kjellman 等 5 位作者2015-08-11Future Science OA

AIM: To investigate the size-dependent lymphatic uptake of nanoparticles in mice with rapidly growing syngeneic tumors. MATERIALS & METHODS: Mice were inoculated subcutaneously with EL4 lymphoma cells and on day 5 or day 6 of tumor growth, injected peritumorally with either 29 nm or 58 nm of ultra-small superparamagne…

Nanoparticle-Based Drug DeliveryQuantum Dots Synthesis And PropertiesNanoplatforms for cancer theranostics

Impact of Humid Environment on Structural and Mechanical Properties of Biobased Polylactide

A. Jaszkiewicz、Andrzej K. Błędzki、A. Meljon2015-08-11International Polymer Processing

Abstract The study focused on the material behavior of two commercial polylactide grades affected by structural changes due to exposure to humid environment. Additionally, the impact of temperature and environment humidity on the moisture uptake and drying process of polymer granulate was examined to evaluate the nece…

Natural Fiber Reinforced Compositesbiodegradable polymer synthesis and propertiesAdditive Manufacturing and 3D Printing Technologies

Band Propagation, Scaling Laws, and Phase Transition in a Precipitate System. 2. Computational Study

Andrew Abi Mansour、Mazen Al‐Ghoul2015-08-11The Journal of Physical Chemistry A

In this second paper, we introduce a chemical kinetic model that investigates the dynamics of the experimental Ni(2+)/NH3-OH(-) Liesegang system characterized by a pattern of β-nickel hydroxide bands led by a growing pulse of α-nickel hydroxide. The model is based on a system of reaction-diffusion equations describing…

Material Dynamics and PropertiesSolidification and crystal growth phenomenaNonlinear Dynamics and Pattern Formation

Enhanced Film Blowing of Polylactide by Incorporating Branched Chains and Stereocomplex Crystals

Sahar Nouri、Pierre G. Lafleur、Charles Dubois2015-08-11International Polymer Processing

Abstract Chain architecture is an influential parameter in melt processing of polymeric material. In this study effect of different chain structures on polylactide (PLA) film blowing process and on the final film properties was investigated. Blends of linear PLA with three branched poly(L-lactide)s with 4-arms star sh…

biodegradable polymer synthesis and propertiesAdditive Manufacturing and 3D Printing TechnologiesPolymer Foaming and Composites

Structural Studies of Functionalized Single-Walled Carbon Nano-Horns

Shivani Dhall、Neena Jaggi2015-08-11Fullerenes Nanotubes and Carbon Nanostructures

In the present work, we have reported a simple approach for the functionalization of single-walled carbon nano-horns by using acids at room temperature conditions. Interaction of acid molecules with the horn was examined by Raman spectroscopy. It was observed that the up-shifting of D and G Raman bands due to intercal…

Carbon Nanotubes in CompositesGraphene research and applicationsDiamond and Carbon-based Materials Research

Comparison of Various Types of Ligand Decorated Nanoliposomes for their Ability to Inhibit Amyloid Aggregation and to Reverse Amyloid Cytotoxicity

Eleni Markoutsa、Spyridon Mourtas、Erika Bereczki 等 9 位作者2015-08-11Current Topics in Medicinal Chemistry

Three different amyloid targeting ligands, previously shown to exhibit amyloid specific properties, have been used to develop amyloid -targeted nanoliposomes (AT-NLs. For this a MAb against Aβ-peptides (Aβ-MAb (immobilized on NLs at 0.015 and 0.05 mol %, and two different curcumin-lipid derivatives were attached to th…

Supramolecular Self-Assembly in MaterialsDendrimers and Hyperbranched PolymersNanocluster Synthesis and Applications

Mechanical Properties, Morphologies and Thermal Decomposition Kinetics of Poly(lactic acid) Toughened by Waste Rubber Powder

Jinian Yang、Shibin Nie、Guoxin Ding 等 6 位作者2015-08-11International Polymer Processing

Abstract To improve the impact resistance and reduce the product cost, poly(lactic acid) (PLA) blends containing varying mass fraction of waste rubber powder (WRP) were fabricated via melt compounding. The effects of WRP contents on the mechanical properties, morphologies and thermal stabilities of PLA/WRP blends were…

Polymer crystallization and propertiesPolymer Nanocomposites and Propertiesbiodegradable polymer synthesis and properties

Induced morphological changes on vicinal MgO (100) subjected to high‐temperature annealing: step formation and surface stability

Askar Syrlybekov、Elisabetta Arca、Ruggero Verre 等 8 位作者2015-08-11Surface and Interface Analysis

Highly regular step and terrace structures have been produced on surfaces of single crystalline MgO, miscut from the low‐index (001) plane, upon annealing in air. Here, the evolution of the surface morphology of such surfaces is investigated. We demonstrate that the periodicity of these structures can be widely tuned…

ZnO doping and propertiesElectronic and Structural Properties of OxidesMagnesium Oxide Properties and Applications

1H and13C NMR Analysis of Poly(succinimide) Prepared by Microwave-Enhanced Polycondensation of L-Aspartic Acid

Marek Piątkowski、Dariusz Bogdał、Konstantin Raclavský2015-08-11International Journal of Polymer Analysis and Characterization

Poly(succinimide) (PSI) is a polymer of aspartic acid with interesting properties and numerous possible uses. Application areas include agriculture, cleaning agents, metallurgy, the building industry, wastewater treatment, medicine, pharmaceuticals, bioengineering, and many more. Therefore, the particular structure an…

biodegradable polymer synthesis and propertiesInorganic and Organometallic ChemistrySynthesis and properties of polymers

Cubic Phases in the Gd2O3-ZrO2 and Dy2O3-TiO2 Systems for Nuclear Industry Applications

María Teresa Malachevsky、Diego Rodríguez Salvador、Sergio Leiva 等 4 位作者2015-08-11Journal of Ceramics

Neutron absorbers are elements with a high neutron capture cross section that are employed at nuclear reactors to control excess fuel reactivity. If these absorbers are converted into materials of relatively low absorption cross section as the result of neutron absorption, they consume during the reactor core life and…

Nuclear Materials and PropertiesAdvanced Condensed Matter PhysicsNuclear materials and radiation effects

A model for supersaturation and aspect ratio for growth dominated crystallization from solution

Lotfi Derdour、Eric J. Chan2015-08-11AIChE Journal

A model for predicting supersaturation, crystal growth rate, crystal size distribution, and aspect ratio is presented. The model applies to isothermal anti‐solvent crystallization where crystal growth is the dominant phenomena and for systems where crystal habit can be characterized by two‐dimensional variables. A par…

Drug Solubulity and Delivery SystemsCrystallization and Solubility StudiesFreezing and Crystallization Processes

Microstructure and tribological behavior via modified F and Si content in duplex (F:Si)‐doped carbon‐based coatings

Renhui Zhang、Zhibin Lu2015-08-11Surface and Interface Analysis

In this paper, the amorphous carbon‐based coatings containing F and Si (a‐C:F:Si) are successfully fabricated using a plane hollow cathode plasma‐enhanced chemical vapor deposition method. The results show that the mechanical properties of these coatings, such as hardness, elastic modulus, friction and wear, are close…

Carbon Nanotubes in CompositesMetal and Thin Film MechanicsDiamond and Carbon-based Materials Research

Ultraviolet and visible upconversion luminescence in Y_2O_3:Er^3+, Gd^3+ microcrystals by 155 μm excitation

Yuhong Zhang、Shuibing Li、Feng Qin 等 5 位作者2015-08-11Journal of the Optical Society of America B

Upconversion (UC) emission spectra of Y2O3:Er3+ (3 mol. %), Gd3+ (0, 10, 20, and 40 mol. %) microcrystals were studied under 1.55 μm excitation. Ultraviolet (UV) UC from the L15/22, H9/22, D1/24, D3/24, D7/24, D5/24, D5/22, P1/22, P3/22, G11/24, and G9/22 levels in Er3+ and from the D1/26 and P7/2…

Luminescence Properties of Advanced MaterialsGlass properties and applicationsRadiation Detection and Scintillator Technologies

Growth of Ceria Nano-Islands on a Stepped Au(788) Surface

Teng Ma、S. Surnev、F. P. Netzer2015-08-11Materials

The growth morphology and structure of ceria nano-islands on a stepped Au(788) surface has been investigated by scanning tunneling microscopy (STM) and low-energy electron diffraction (LEED). Within the concept of physical vapor deposition, different kinetic routes have been employed to design ceria-Au inverse model c…

Catalytic Processes in Materials ScienceCopper-based nanomaterials and applicationsnanoparticles nucleation surface interactions

The crosslinked poly(azomethine-urethane)s containing o-hydroxyazomethine: Tunable multicolor emission, photophysical and thermal properties

Musa Kamacı、Ali Avcı、İsmet Kaya2015-08-11Progress in Organic Coatings

This article presents synthesis, photophysical, electrochemical, thermal, and morphological properties of the crosslinked polyurethanes (CLPUs). CLPUs were synthesized in two main steps. In the first step, aldehyde functionalized polyurethane prepolymer was synthesized using 2,4-dihydroxy benzaldehyde and hexamethylen…

Polymer composites and self-healingSynthesis and properties of polymersPolydiacetylene-based materials and applications

Dimethyl-Aluminium Complexes Bearing Naphthyl-Substituted Pyridine-Alkylamides as Pro-Initiators for the Efficient ROP of ε-Caprolactone

Andrew P. Armitage、Olivier Boyron、Yohan Champouret 等 6 位作者2015-08-11Catalysts

Three sterically-enhanced 2-imino-6-(1-naphthyl)pyridines, 2-{CMe=N(Ar)}-6-(1-C10H7)C5H3N [Ar = 2,6-i-Pr2C6H3 (L1dipp), 2,4,6-i-Pr3C6H2 (L1tripp), 4-Br-2,6-i-Pr2C6H2 (L1Brdipp)], differing only in the electronic properties of the N-aryl group, have been prepared in high yield by the condensation reaction of 2-{CMe=O}-…

Organometallic Complex Synthesis and Catalysisbiodegradable polymer synthesis and propertiesCarbon dioxide utilization in catalysis

Probe current determination in analytical TEM/STEM and its application to the characterization of large area EDS detectors

David R. G. Mitchell、Mitchell Nancarrow2015-08-11Microscopy Research and Technique

A simple procedure, which enables accurate measurement of transmission electron microscopy (TEM)/STEM probe currents using an energy loss spectrometer drift tube is described. The currents obtained are compared with those measured on the fluorescent screen to enable the losses due to secondary and backscattered electr…

Advanced Electron Microscopy Techniques and ApplicationsElectron and X-Ray Spectroscopy TechniquesGa2O3 and related materials