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Pharmaceutical cocrystals of nitrofurantoin: screening, characterization and crystal structure analysis

Amjad Alhalaweh、S. George、Srinivas Basavoju 等 6 位作者2012-01-01CrystEngComm

The objective of this study was to screen and prepare cocrystals of the poorly soluble drug nitrofurantoin (NTF) with the aim of increasing its solubility. Screening for cocrystals of NTF using 47 coformers was performed by high-throughput (HT) screening using liquid assisted grinding (LAG) methods. Raman spectroscopy…

Crystallography and molecular interactionsCrystallization and Solubility StudiesPhenothiazines and Benzothiazines Synthesis and Activities

Design and Implementation of a Broadband Single Layer Circularly Polarized Reflectarray Antenna

Reza Shamsaee Malfajani、Zahra Atlasbaf2012-01-01IEEE Antennas and Wireless Propagation Letters

The design and implementation of a broadband single-layer circularly polarized reflectarray antenna is presented in this letter. Each element in the proposed reflectarray consists of a circular microstrip patch attached to four variable-length phase delay lines to achieve more than 650$^{\circ}$of linear phase for fre…

Antenna Design and AnalysisMetamaterials and Metasurfaces ApplicationsAdvanced Antenna and Metasurface Technologies

Magnetic communication and reactivity of a stable homometallic cation–cation trimer of pentavalent uranyl

Lucile Chatelain、Victor Mougel、Jacques Pécaut 等 4 位作者2012-01-01Chemical Science

The reaction of the UO2+ precursor [(UO2Py5)(KI2Py2)]n, with the potassium salt of the tetradentate aza β-diketiminate ligand L (L = 2-(4-tolyl)-1,3-bis(quinolyl)malondiiminate) affords the first homometallic cation–cation complex of pentavalent uranyl. The complex [UO2L]3 has a new triangular geometry of the cation–c…

Advanced MRI Techniques and ApplicationsRadioactive element chemistry and processingLanthanide and Transition Metal Complexes

Recent advances of fluorous chemistry in material sciences

Jean‐Marc Vincent2012-01-01Chemical Communications

In recent years, there has been an increasing interest in exploiting fluorous derivatives/moieties for applications that are not only related to reaction mixture purification issues and catalyst recycling, but to confer unique/improved properties to materials. Herein we will focus on the recent advances of fluorous ch…

Metal-Organic Frameworks: Synthesis and ApplicationsLuminescence and Fluorescent MaterialsSupramolecular Self-Assembly in Materials

Shape-controlled synthesis of Co3O4 nanostructures derived from coordination polymer precursors and their application to the thermal decomposition of ammonium perchlorate

Lina Jin、Qing Liu、Wei‐Yin Sun2012-01-01CrystEngComm

In this paper, we report a facile approach for the shape-controlled synthesis of cobalt(II)-based coordination polymer particles. Three different structures of flower-like architectures, multilayer stacked structures and nanosheets have been synthesized by varying the volume ratio of ethanol and water. Phase-pure Co3O…

Metal-Organic Frameworks: Synthesis and ApplicationsEnergetic Materials and CombustionMagnesium Oxide Properties and Applications

Handbook of sputter deposition technology : fundamentals and applications for functional thin films, nanomaterials and MEMS

Kiyotaka Wasa、Isaku Kanno、Hidetoshi Kotera2012-01-01Medical Entomology and Zoology

This thoroughly updated new edition includes an entirely new team of contributing authors with backgrounds specializing in the various new applications of sputtering technology. It forms a bridge between fundamental theory and practical application, giving an insight into innovative new materials, devices and systems.…

Metal and Thin Film MechanicsSemiconductor materials and devicesCopper Interconnects and Reliability

Microfluidic synthesis of monodisperse porous microspheres with size-tunable pores

Wynter J. Duncanson、Maximilian Zieringer、Olaf Wagner 等 7 位作者2012-01-01Soft Matter

We use a perfluorinated-dendrimer–dye complex that stabilizes microbubbles as a novel pore-forming agent. We use microfluidics to produce monodisperse emulsions containing a polymer matrix material, a model active, and the perfluorinated complex; upon drying, the emulsions form porous microspheres. This porosity cause…

Polymer Surface Interaction StudiesInnovative Microfluidic and Catalytic Techniques InnovationPickering emulsions and particle stabilization

A BINOL-based chiral polyammonium receptor for highly enantioselective recognition and fluorescence sensing of (S,S)-tartaric acid in aqueous solution

Andrea Bencini、Carmine Coluccini、Alessandra Garau 等 8 位作者2012-01-01Chemical Communications

A chiral ditopic polyammonium receptor featuring two [9]aneN(3) moieties separated by a (S)-BINOL linker is able to selectively bind and sense in water (S,S)-tartaric acid over its (R,R)/meso forms.

Molecular Sensors and Ion DetectionSupramolecular Chemistry and ComplexesLuminescence and Fluorescent Materials

Unusual ceria dispersion formed in confined space: a stable and reusable adsorbent for aromatic sulfur capture

Yu Yin、Ding‐Ming Xue、Xiao‐Qin Liu 等 7 位作者2012-01-01Chemical Communications

An unusual ceria dispersion was achieved by using the confined space between template and silica walls in as-prepared mesoporous silica, for the first time. The new adsorbents exhibit high adsorptive desulfurization activity and, more importantly, excellent stability and reusability, which is impossible to realize wit…

Catalytic Processes in Materials ScienceCatalysis and Hydrodesulfurization StudiesNanomaterials for catalytic reactions

A Novel Partially Biobased PAN-Lignin Blend as a Potential Carbon Fiber Precursor

M. Özgür Seydibeyoğlu2012-01-01BioMed Research International

Blends of polyacrylonitrile (PAN) and lignin were prepared with three different lignin types by solution blending and solution casting. Among three types of lignin, one type was chosen and different blend concentrations were prepared and casted. The casted blend films were characterized chemically with fourier transfo…

Natural Fiber Reinforced CompositesLignin and Wood ChemistryFiber-reinforced polymer composites

Variation in the biomolecular interactions of nickel(ii) hydrazone complexes upon tuning the hydrazide fragment

P. Krishnamoorthy、P. Sathyadevi、R.R. Butorac 等 6 位作者2012-01-01Dalton Transactions

Three new bivalent nickel hydrazone complexes have been synthesised from the reactions of [NiCl(2)(PPh(3))(2)] with H(2)L {L = dianion of the hydrazones derived from the condensation of o-hydroxynaphthaldehyde with furoic acid hydrazide (H(2)L(1)) (1)/thiophene-2-acid hydrazide (H(2)L(2)) (2)/isonicotinic acid hydrazi…

Metal complexes synthesis and propertiesCrystal structures of chemical compoundsMagnetism in coordination complexes

Solvent-free selective hydrogenation of chloronitrobenzene to chloroaniline over a robust Pt/Fe3O4 catalyst

Chao Lian、Hongquan Liu、Chao Xiao 等 7 位作者2012-01-01Chemical Communications

In the absence of solvent, highly selective hydrogenation of o-chloronitrobenzene and m-chloronitrobenzene, with selectivity to the corresponding chloroanilines of ≥99.4% and complete conversion of the substrates, was realized over a robust Pt/Fe(3)O(4) catalyst which was prepared by adsorbing Pt nanoclusters on a Fe(…

Copper-based nanomaterials and applicationsAmmonia Synthesis and Nitrogen ReductionNanomaterials for catalytic reactions

Entrainer-intensified vacuum reactive distillation process for the separation of 5-hydroxylmethylfurfural from the dehydration of carbohydrates catalyzed by a metal salt–ionic liquid

Zuojun Wei、Yingxin Liu、Dilantha Thushara 等 4 位作者2012-01-01Green Chemistry

As more and more novel catalyst systems are being developed for the dehydration of carbohydrates, especially glucose, an effective way to separate the dehydration product 5-hydroxylmethylfurfural (5-HMF) is also required for industrial manufacturing. In this paper, for the first time, we have developed a process calle…

Supercapacitor Materials and FabricationIonic liquids properties and applicationsCatalysis for Biomass Conversion

Relative and inherent reactivities of imidazolium-based ionic liquids: the implications for lignocellulose processing applications

Alistair W. T. King、Arno Parviainen、Pirkko Karhunen 等 7 位作者2012-01-01RSC Advances

Novel methods for the fractionation of wood, as a major renewable chemical and material feedstock, are in demand. Ionic liquids, such as 1-ethyl-3-methylimidazolium acetate ([emim][OAc]), are promoted as potential media for these processes. However, the chemical stabilities of such ionic liquids are in question as the…

Ionic liquids properties and applicationsAdvanced Cellulose Research StudiesLignin and Wood Chemistry

Facile fabrication of nanofluidic diode membranes using anodic aluminium oxide

Songmei Wu、Fabien Wildhaber、Oscar Vázquez-Mena 等 6 位作者2012-01-01Nanoscale

Active control of ion transport plays important roles in chemical and biological analytical processes. Nanofluidic systems hold the promise for such control through electrostatic interaction between ions and channel surfaces. Most existing experiments rely on planar geometry where the nanochannels are generally very l…

Semiconductor materials and devicesNanopore and Nanochannel Transport StudiesAnodic Oxide Films and Nanostructures

Characterization of the PEM Fuel Cell Catalyst Layer Microstructure by Nonlinear Least-Squares Parameter Estimation

Peter J. Dobson、Chao Lei、Titichai Navessin 等 4 位作者2012-01-01Journal of The Electrochemical Society

Models of polymer electrolyte membrane fuel cells (PEMFC) have become increasingly complex, using many parameters to define the behavior of species and the performance of the cell. A framework is presented here to couple an agglomerate electrode based, multi-dimensional, multi-physics mathematical model of membrane el…

Electrocatalysts for Energy ConversionAdvancements in Solid Oxide Fuel CellsFuel Cells and Related Materials

Radiolytic Stability of TODGA: Characterization of Degraded Samples under Different Experimental Conditions

Hitos Galán、Ana Núñez、A.G. Espartero 等 6 位作者2012-01-01Procedia Chemistry

The radiolytic stability of TODGA (N, N, N’, N’-tetraoctyldiglycolamide), which is considered one of the extractans with higher possibilities to be applied for nuclear hydrometallurgical partitioning processes, has been studied in this paper against gamma radiation. Several irradiation experiments have been carried ou…

Radioactive element chemistry and processingNuclear Materials and PropertiesChemical Synthesis and Characterization

ZnO@ZnS hollow dumbbells–graphene composites as high-performance photocatalysts and alcohol sensors

Xuelian Yu、Guangjin Zhang、Hongbin Cao 等 8 位作者2012-01-01New Journal of Chemistry

Novel ZnO@ZnS hollow dumbbells–graphene composites have been successfully fabricated through a polymer-assisted hydrothermal reaction and sulfurization treatment. Because of the formation of heterostructures and a new transfer pathway of electrons from ZnS to graphene, the composites show significantly superior photoc…

Advanced Photocatalysis TechniquesGas Sensing Nanomaterials and SensorsCovalent Organic Framework Applications

Synthesis of methanol and dimethyl ether from syngas over Pd/ZnO/Al2O3 catalysts

Vanessa M. Lebarbier、Robert A. Dagle、Libor Kovařík 等 6 位作者2012-01-01Catalysis Science & Technology

A Pd/ZnO/Al2O3 catalyst was developed for the synthesis of methanol and dimethyl ether (DME) from syngas with temperatures of operation ranging from 250 °C to 380 °C. High temperatures (e.g. 380 °C) are of interest when combining methanol and DME synthesis with a methanol to gasoline (MTG) process in a single reactor…

Catalytic Processes in Materials ScienceCatalysts for Methane ReformingCatalysis and Hydrodesulfurization Studies

Relating the Early Evolution of Microstructure with the Electrochemical Response and Mechanical Performance of a Cu-Rich and Cu-Lean 7xxx Aluminum Alloy

Rajeev Gupta、A. Deschamps、M.K. Cavanaugh 等 5 位作者2012-01-01Journal of The Electrochemical Society

In this work AA7150 and AA7079 were studied as examples of 7xxx aluminum alloys with a high and low Cu content.The alloys were carefully examined to determine the evolution (incl.density and size) of precipitates during heat-treatment using small angle X-ray scattering (SAXS).Such characterization made it possible to…

Corrosion Behavior and InhibitionAluminum Alloy Microstructure PropertiesAdvanced Welding Techniques Analysis