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Polycyclic Aromatic Hydrocarbons in Birch Wood Slow Pyrolysis Products

Leena Fagernäs、Eeva Kuoppala、Pekka Simell2012-10-24Energy & Fuels

The products from slow pyrolysis of birch hardwood are promising to be used for various purposes, in addition to conventional charcoal. To evaluate their utilization, knowledge about their polycyclic aromatic hydrocarbons (PAHs) is needed. The content and distribution of the PAHs in the different products were determi…

Thermochemical Biomass Conversion ProcessesNatural Fiber Reinforced CompositesLignin and Wood Chemistry

Unsymmetrical Squaraines Incorporating Quinoline for Near Infrared Responsive Dye-Sensitized Solar Cells

Jheng-Ying Li、Chia‐Yuan Chen、Wen-Chein Ho 等 5 位作者2012-10-24Organic Letters

Two new unsymmetrical squaraines (WCH-SQ10 and WCH-SQ11), wherein the electron-rich 3,4-ethylenedioxy-thiophene conjugated fragment was linked unconventionally to the squaraine core and triphenyl amine donor, and carboxylic acid substituted quinoline was used as an acceptor, were prepared. WCH-SQ10 and WCH-SQ11 dyes i…

TiO2 Photocatalysis and Solar CellsAdvanced Photocatalysis TechniquesPhotochromic and Fluorescence Chemistry

Adsorption of albumin by gold nanoparticles: Equilibrium and thermodynamics studies

Mahdi Maleki、Omid Moradi、Sadaf Tahmasebi2012-10-24Arabian Journal of Chemistry

In this research, bovine serum albumin (BSA) experiment was carried out and then the produced BSA was used to investigate the adsorption behavior of BSA from aqueous solutions through UV–Vis spectroscopy. The changes of parameters such as contact time, pH, BSA initial concentration and temperature were tested and inve…

Material Dynamics and PropertiesSurfactants and Colloidal SystemsProtein Interaction Studies and Fluorescence Analysis

Efficient, Scalable, and Solvent-free Mechanochemical Synthesis of the OLED Material Alq3 (q = 8-Hydroxyquinolinate)

Xiaohe Ma、Gin Keat Lim、Kenneth D. M. Harris 等 7 位作者2012-10-24Crystal Growth & Design

The aluminum complex Alq 3 (q = 8-hydroxyquinolinate), which has important applications in organic light-emitting diode materials, is shown to be readily synthesized as a pure phase under solvent-free mechanochemical conditions from Al(OAc) 2 OH and 8-hydroxyquinoline by ball milling. The initial product of the mechan…

Luminescence Properties of Advanced MaterialsOrganic Light-Emitting Diodes ResearchLuminescence and Fluorescent Materials

Polymerization of Isobutylene by GaCl3 or FeCl3/Ether Complexes in Nonpolar Solvents

Rajeev Kumar、Philip Dimitrov、Keith J. Bartelson 等 5 位作者2012-10-24Macromolecules

The carbocationic polymerization of isobutylene (IB), co-initiated by GaCl 3 or FeCl 3 ·dialkyl ether 1:1 complexes has been investigated in hexanes in the −20 to 10 °C temperature range. In contrast to AlCl 3 ·diisopropyl ether (AlCl 3 · i -Pr 2 O) complexes, (1) GaCl 3 · i -Pr 2 O and FeCl 3 · i -Pr 2 O readily co-i…

Organometallic Complex Synthesis and Catalysisbiodegradable polymer synthesis and propertiesSynthetic Organic Chemistry Methods

Tuning Fluorescent Molecules by Inclusion in a Metal–Organic Framework: An Experimental and Computational Study

Dongpeng Yan、Gareth O. Lloyd、Amit Delori 等 5 位作者2012-10-24ChemPlusChem

Abstract Fluorescent molecules included within a metal–organic framework (MOF) offer a new opportunity to develop luminescent host–guest materials. Two linear π‐conjugated fluorescent molecules, 1,4‐bis‐p‐cyanostyrylbenzene (bpcb) and 1,4‐bis(5‐phenyloxazol‐2‐yl)benzene (bpob), incorporated into MOF‐5 systems are repo…

Metal-Organic Frameworks: Synthesis and ApplicationsMagnetism in coordination complexesDendrimers and Hyperbranched Polymers

Effects of a Heavy Atom on Molecular Order and Morphology in Conjugated Polymer:Fullerene Photovoltaic Blend Thin Films and Devices

Wing Chung Tsoi、David T. James、Ester Buchaca Domingo 等 11 位作者2012-10-24ACS Nano

We study the molecular order and morphology in poly(3-hexylthiophene) (P3HT) and poly(3-hexylselenophene) (P3HS) thin films and their blends with [6,6]-phenyl-C(61)-butyric acid methyl ester (PCBM). We find that substitution of the sulfur atoms in the thiophene rings of P3HT by heavy selenium atoms increases the tende…

Organic Electronics and PhotovoltaicsPerovskite Materials and ApplicationsConducting polymers and applications

Mode of Growth of Ultrathin Topological Insulator Bi 2 Te 3 Films on Si (111) Substrates

S. Borisova、Julian Krumrain、M. Luysberg 等 5 位作者2012-10-24Crystal Growth & Design

Layered materials such as graphene, bi-, and multilayer graphene as well as various compounds of topological insulators are currently in the focus of interest due to their extraordinary physical properties related to Dirac surface states. The ability to grow thin films of these complex layered materials is the key to…

Graphene research and applicationsTopological Materials and PhenomenaElectronic and Structural Properties of Oxides

Nitrogen-induced improvement of resistive switching uniformity in a HfO2-based RRAM device

Hongwei Xie、Qi Liu、Yingtao Li 等 11 位作者2012-10-24Semiconductor Science and Technology

Nitrogen-induced improvement of resistive switching uniformity in a HfO2-based RRAM device, Xie, Hongwei, Liu, Qi, Li, Yingtao, Lv, Hangbing, Wang, Ming, Liu, Xiaoyu, Sun, Haitao, Yang, Xiaoyi, Long, Shibing, Liu, Su, Liu, Ming

Advanced Memory and Neural ComputingElectronic and Structural Properties of OxidesFerroelectric and Negative Capacitance Devices

Factor Structure Underlying Components of Allostatic Load

Jeanne M. McCaffery、Anna L. Marsland、Kelley Strohacker 等 5 位作者2012-10-24PLoS ONE

Allostatic load is a commonly used metric of health risk based on the hypothesis that recurrent exposure to environmental demands (e.g., stress) engenders a progressive dysregulation of multiple physiological systems. Prominent indicators of response to environmental challenges, such as stress-related hormones, sympat…

Control Systems and IdentificationTextile materials and evaluations

Nanosheet-assembled hierarchical nanostructures of hydroxyapatite: surfactant-free microwave-hydrothermal rapid synthesis, protein/DNA adsorption and pH-controlled release

Xinyu Zhao、Ying‐Jie Zhu、Feng Chen 等 5 位作者2012-10-24CrystEngComm

In this paper, a surfactant-free rapid microwave-assisted hydrothermal synthesis of hydroxyapatite nanosheet-assembled flower-like hierarchical nanostructures (NFHNs) is reported. The effects of the experimental conditions on the morphology and crystal phase of the product are investigated. A possible formation mechan…

Bone Tissue Engineering MaterialsPolymer Surface Interaction StudiesCalcium Carbonate Crystallization and Inhibition

Targeting of Several Glycolytic Enzymes Using RNA Interference Reveals Aldolase Affects Cancer Cell Proliferation through a Non-glycolytic Mechanism

Carolyn R. Lew、Dean R. Tolan2012-10-24Journal of Biological Chemistry

In cancer, glucose uptake and glycolysis are increased regardless of the oxygen concentration in the cell, a phenomenon known as the Warburg effect. Several (but not all) glycolytic enzymes have been investigated as potential therapeutic targets for cancer treatment using RNAi. Here, four previously untargeted glycoly…

Cancer, Hypoxia, and MetabolismEnzyme Structure and FunctionCancer Research and Treatments

Theory of Three-Dimensional Nanocrescent Light Harvesters

Antonio I. Fernández‐Domínguez、Yu Luo、Aeneas Wiener 等 5 位作者2012-10-24Nano Letters

The optical properties of three-dimensional crescent-shaped gold nanoparticles are studied using a transformation optics methodology. The polarization insensitive, highly efficient, and tunable light harvesting ability of singular nanocrescents is demonstrated. We extend our approach to more realistic blunt nanostruct…

Gold and Silver Nanoparticles Synthesis and ApplicationsMetamaterials and Metasurfaces ApplicationsPlasmonic and Surface Plasmon Research

BODIPY-based ratiometric fluorescent probes for the sensitive and selective sensing of cyanide ions

Jingtuo Zhang、Shilei Zhu、Loredana Valenzano 等 5 位作者2012-10-24RSC Advances

Three BODIPY-based ratiometric fluorescent probes (1, 2 and 3), with two being highly soluble in aqueous solution, were prepared by the condensation of 2-formyl-BODIPY dyes with 2,3,3-trimethyl-1-propyl-3H-indolium iodide and 2,3,3-trimethyl-1-(3-sulfonatepropyl)-3H-indolium for the selective and sensitive ratiometric…

Molecular Sensors and Ion DetectionLuminescence and Fluorescent MaterialsSulfur Compounds in Biology

From 1D Chain to 3D Framework Uranyl Diphosphonates: Syntheses, Crystal Structures, and Selective Ion Exchange

Weiting Yang、Hongyue Wu、Run-Xue Wang 等 6 位作者2012-10-24Inorganic Chemistry

In this work, we demonstrate a family of new inorganic-organic hybrid uranyl diphosphonates based on 1-hydroxyethylidenediphosphonic acid (H(4)L) linker by using hydrothermal method. These compounds, (Hbpi)[(UO(2))(H(2)O)(HL)]·H(2)O (UP-1), represents 1D structure, (Hbpi)[(UO(2))(H(2)O)(HL)] (UP-2), (H(2)dib)(0.5)[(UO…

Radioactive element chemistry and processingNuclear materials and radiation effectsChemical Synthesis and Characterization

Topological insulator nanostructures

J. Judy、Kristie J. Koski、Yi Cui2012-10-24physica status solidi (RRL) - Rapid Research Letters

Abstract magnified image Topological insulators provide a gateway to investigate fundamental quantum behaviours of exotic quasi‐particles as well as the promise to revolutionize modern technology. This is due to their unique surface states that are robust against time reversal perturbation and exhibit unique spin‐mome…

Graphene research and applicationsTopological Materials and PhenomenaElectronic and Structural Properties of Oxides

Design and Validation of a Reconfigurable Single Varactor-Tuned Reflectarray

Francesca Venneri、Sandra Costanzo、G. Di Massa2012-10-24IEEE Transactions on Antennas and Propagation

An aperture-coupled reflectarray element giving a full phase tuning range with a single varactor diode is proposed in this paper for pattern reconfigurability applications. The full phase agility is achieved by a proper optimization of the phase tuning line, thus providing an alternate inductive/capacitive effect able…

Antenna Design and AnalysisMetamaterials and Metasurfaces ApplicationsAdvanced Antenna and Metasurface Technologies

Extended data set for the equation of state of warm dense hydrogen isotopes

Paul Loubeyre、S. Brygoo、J. H. Eggert 等 9 位作者2012-10-24Physical Review B

Laser-driven shock wave measurements on hydrogen and deuterium precompressed in diamond anvil cells from 0.16 to 1.6 GPa provide new shock Hugoniot data over a significantly broader range of density-temperature phase space than was previously achievable. Observations of shock velocity and thermal emission provide comp…

High-pressure geophysics and materialsDiamond and Carbon-based Materials ResearchAtomic and Subatomic Physics Research

Impairment of Coronary Arteriolar Endothelium-Dependent Dilation after Multi-Walled Carbon Nanotube Inhalation: A Time-Course Study

Phoebe A. Stapleton、Valerie C. Minarchick、Amy Cumpston 等 12 位作者2012-10-24International Journal of Molecular Sciences

Engineered nanomaterials have been developed for widespread applications due to many highly unique and desirable characteristics. The purpose of this study was to assess pulmonary inflammation and subepicardial arteriolar reactivity in response to multi-walled carbon nanotube (MWCNT) inhalation and evaluate the time c…

Nanoparticles: synthesis and applicationsAir Quality and Health ImpactsAnesthesia and Neurotoxicity Research

Beneficial role of ZnO photocatalyst supported with porous activated carbon for the mineralization of alizarin cyanin green dye in aqueous solution

P. Muthirulan、M. Meenakshisundararam、Nagarathinam Kannan2012-10-24Journal of Advanced Research

The present investigation depicts the development of a simple and low cost method for the removal of color from textile dyeing and printing wastewater using ZnO as photocatalyst supported with porous activated carbon (AC). Photocatalytic degradation studies were carried out for water soluble toxic alizarin cyanin gree…

TiO2 Photocatalysis and Solar CellsAdvanced Photocatalysis TechniquesNanoparticles: synthesis and applications