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Effect of ferrocene substituents and ferricinium additive on the properties of polyaniline derivatives and catalytic activities of palladium‐doped poly(m‐ferrocenylaniline)‐catalyzed Suzuki–Miyaura cross‐coupling reactions

Laksamee Chaicharoenwimolkul Chuaitammakit、Sanoe Chairam、Montree Namkajorn 等 9 位作者2013-04-29Journal of Applied Polymer Science

ABSTRACT Poly(aniline‐ co‐m ‐ferrocenylaniline) and ferricinium‐doped poly(aniline‐ co‐m ‐ferrocenylaniline) were synthesized by a conventional chemical oxidative polymerization, then characterized by spectroscopic techniques and quantitative analyzes. Increasing of the percentages of m ‐ferrocenylaniline in the copol…

Catalytic Cross-Coupling ReactionsConducting polymers and applicationsPolyoxometalates: Synthesis and Applications

A Pyridyl‐Monoannulated Naphthalene Diimide Motif Self‐Assembles into Tuneable Nanostructures by Means of Solvophobic Control

Sheshanath V. Bhosale、Sheshanath V. Bhosale、Mukund Adsul 等 8 位作者2013-04-29Chemistry - A European Journal

The supramolecular self-assembly of the core-substituted naphthalene diimide bearing pyridyl motifs leads to the formation of a variety of nanostructures with pH and solvent control. The detection of HCl can be monitored by UV/Vis and fluorescence spectroscopy, as well as the naked eye, with a change in colour (blue t…

Luminescence and Fluorescent MaterialsSupramolecular Self-Assembly in MaterialsPolydiacetylene-based materials and applications

Self-Assembly and Near Perfect Macroscopic Alignment of Fluorescent Triangulenium Salt in Spin-Cast Thin Films on PTFE

Fredrik Westerlund、H. Lemke、Tue Hassenkam 等 5 位作者2013-04-29Langmuir

Highly fluorescent, discotic trioxatriangulenium dyes were aligned by simple spin-casting on substrates with friction transferred PTFE layers. The fluorescent crystalline thin films show near perfect macroscopic alignment on centimeter large areas directly from spin-casting. Gracing Incidence X-ray Diffraction (GIXD)…

Liquid Crystal Research AdvancementsPorphyrin and Phthalocyanine ChemistryMolecular Junctions and Nanostructures

Clathrates and semiclathrates of Type-I: crystal structure and superstructures

Maria A. Kirsanova、Аndrei V. Shevelkov2013-04-29Zeitschrift für Kristallographie - Crystalline Materials

Abstract The review surveys the crystal chemistry of inorganic compounds belonging to the structure type of clathrate-I. The compounds of this family exhibit an unexpected variety of both chemical composition and features of the crystal structure. The basic crystal structure of clathrate-I and different variants of it…

Luminescence Properties of Advanced MaterialsCrystal Structures and PropertiesNuclear materials and radiation effects

Photophysics of Delocalized Excitons in Carbazole Dendrimers

Inchan Hwang、Ulrike Selig、Simon S. Y. Chen 等 7 位作者2013-04-29The Journal of Physical Chemistry A

The photophysical properties in solution of three generations of carbazole-based dendrons and dendrimers with fluorenyl surface groups were studied using steady-state, time-resolved femtosecond transient absorption and anisotropy, and coherent two-dimensional ultraviolet spectroscopy. It was found that increasing the…

Gold and Silver Nanoparticles Synthesis and ApplicationsLuminescence and Fluorescent MaterialsDendrimers and Hyperbranched Polymers

Electrical property measurements of Cr-N codoped TiO2 epitaxial thin films grown by pulsed laser deposition

Jaćim Jaćimović、Richard Gaál、Arnaud Magrez 等 6 位作者2013-04-29Applied Physics Letters

The temperature dependent resistivity and thermo-electric power of Cr-N codoped TiO2 were compared with that of single element N and Cr doped and undoped TiO2 using epitaxial anatase thin films grown by pulsed laser deposition on (100) LaAlO3 substrates. The resistivity plots and especially the thermoelectric power da…

ZnO doping and propertiesSemiconductor materials and devicesElectronic and Structural Properties of Oxides

Direkte Beobachtung alternativer Reaktionswege an einzelnen Molekülen

Arina Rybina、Carolin Lang、Marcel Wirtz 等 10 位作者2013-04-29Angewandte Chemie

Fokus auf chemischen Übergängen: Die Epoxidierung einer Doppelbindung, die mit einem Fluoreszenzfarbstoff konjugiert ist, wurde auf Einzelmolekülniveau untersucht. Die direkte Beobachtung der Oxiranbildung – zu erkennen an der spektralen Verschiebung vom Substrat- zum Produktzustand – offenbart einen alternativen Reak…

Porphyrin and Phthalocyanine ChemistryPhotochemistry and Electron Transfer StudiesLuminescence and Fluorescent Materials

Adhesion and Growth of Vascular Smooth Muscle Cells on Nanostructured and Biofunctionalized Polyethylene

Katarína Novotná、Markéta Bačáková、Nikola Slepičková Kasálková 等 7 位作者2013-04-29Materials

Cell colonization of synthetic polymers can be regulated by physical and chemical modifications of the polymer surface. High-density and low-density polyethylene (HDPE and LDPE) were therefore activated with Ar⁺ plasma and grafted with fibronectin (Fn) or bovine serum albumin (BSA). The water drop contact angle usuall…

Bone Tissue Engineering MaterialsElectrospun Nanofibers in Biomedical ApplicationsPolymer Nanocomposite Synthesis and Irradiation

Colorless to Purple–Red Switching Electrochromic Anthraquinone Imides with Broad Visible/Near‐IR Absorptions in the Radical Anion State: Simulation‐Aided Molecular Design

Fengkun Chen、Jie Zhang、Hong Jiang 等 4 位作者2013-04-29Chemistry - An Asian Journal

The large redshift of near-infrared (NIR) absorptions of nitro-substituted anthraquinone imide (Nitro-AQI) radical anions, relative to other AQI derivatives, is rationalized based on quantum chemical calculations. Calculations reveal that the delocalization effects of electronegative substitution in the radical anion…

Conducting polymers and applicationsTransition Metal Oxide NanomaterialsPhotochromic and Fluorescence Chemistry

Microporous Organic Polymers with Ketal Linkages: Synthesis, Characterization, and Gas Sorption Properties

Ying Han、Limin Zhang、Yanchao Zhao 等 5 位作者2013-04-29ACS Applied Materials & Interfaces

A series of microporous organic polymers with ketal linkages were synthesized based on the condensation of aromatic acetyl monomers with pentaerythritol. Fourier transform infrared and solid-state cross-polarization/magic-angle-spinning (13)C NMR spectroscopy were utilized to confirm the ketal linkages of the resultin…

Metal-Organic Frameworks: Synthesis and ApplicationsMembrane Separation and Gas TransportCovalent Organic Framework Applications

Photocatalytic disinfection of water polluted by Pseudomonas Aeruginosa

作者信息未提供2013-04-29Global NEST Journal

Photocatalysis by titanium dioxide (TiO2) is a water treatment method. Pseudomonas aeruginosa is a microorganism resistant to chlorine and UV-C irradiation. TiO2 photocatalytic technology can destroy bacteria, which are resistant to oxidative destruction of cell membrane caused by sole UV irradiation. This study aims…

Nanoparticles: synthesis and applications

Grain-boundary structural transformation induced by geometry and chemistry

Yukio Sato、Ji-Young Roh、Yuichi Ikuhara2013-04-29Physical Review B

Since the presence of dopant at grain boundaries (GBs) has a big impact on physical properties of crystalline solids, GB atomic structure and dopant location have been clarified in detail in some particular cases. However, further studies are required to reveal the underlying structure-formation mechanisms, because th…

ZnO doping and propertiesSemiconductor materials and interfacesElectronic and Structural Properties of Oxides

Influence of the buffer layer properties on the intensity of Raman scattering of graphene

Sergey A. Dyakov、T. S. Perova、Congqin Miao 等 6 位作者2013-04-29Journal of Raman Spectroscopy

Using a model of oscillating dipoles, we simulate the intensity of the G‐band in the Raman signal from structures consisting of graphene, separated by an arbitrary buffer layer from a substrate. It is found that a structure with an optimized buffer layer refractive index and thickness exhibits a Raman signal which is…

Graphene research and applicationsGold and Silver Nanoparticles Synthesis and ApplicationsPlasmonic and Surface Plasmon Research

Silver nanoparticles as active ingredient used for alcohol-free mouthwash

Marzieh Fattahi Dolat Abadi、Sedigheh Mehrabian、Babak Asghari 等 6 位作者2013-04-29PubMed

We developed an effective and non-irritant mouthwash that is alcohol-free and has a low concentration of silver nanoparticles (SNP) in order to be used for preventing oral cavity infections in immunocompromised oncologic patients. We studied antimicrobial effects of silver nanoparticles (SNP) in the range of (50-0.024…

Nanoparticles: synthesis and applicationsOral microbiology and periodontitis researchAdvanced Nanomaterials in Catalysis

Temporal variation of diatom assemblages in oligotrophic and eutrophic streams

Jenni J. Korhonen、Petrina Köngäs、Janne Soininen2013-04-29European Journal of Phycology

Diatoms are used as indicators of water quality as they respond predictably to many water chemistry variables and their ecology is relatively well known. However, temporal variation in diatom assemblages remains poorly resolved and studies covering large temporal and spatial scales are urgently needed. Here, we studie…

Fish Ecology and Management StudiesFreshwater macroinvertebrate diversity and ecologyDiatoms and Algae Research

Novel flame retardant zirconia-reinforced nanocomposites containing chlorinated poly(amide-imide): synthesis and morphology probe

Shadpour Mallakpour、Fatemeh Zeraatpisheh2013-04-29Journal of Experimental Nanoscience

In the present investigation, a thermally stable poly(amide-imide) (PAI) was synthesised from the polymerisation reaction of 4,4′-methylenebis(3-chloro-2,6-diethyl trimellitimidobenzene) as a chlorinated diacid with 4,4′-methylenebis(3-chloro-2,6-diethylaniline) using molten tetra-n-butylammonium bromide and triphenyl…

Flame retardant materials and propertiesCarbon dioxide utilization in catalysisSynthesis and properties of polymers

Evidence of atomically resolved 6×6 buffer layer with long-range order and short-range disorder during formation of graphene on 6H-SiC by thermal decomposition

Tingwei Hu、Fei Ma、D. Y. 等 7 位作者2013-04-29Applied Physics Letters

Scanning tunneling microscopy (STM) is performed to study the formation mechanism of graphene on 6H-SiC by thermal decomposition in situ and the evolution of an atomically resolved 6×6 structure in the buffer layer is revealed. The long-range order of the 6×6 structure is maintained during growth, but the short-range…

Carbon Nanotubes in CompositesGraphene research and applicationsSurface and Thin Film Phenomena

Synthesis of Fe 3 O 4 /polyaniline nanocomposite and its application for nitrate removal from aqueous solutions

Reza Katal、Sara Pourkarimi、Ehsan Bahmani 等 6 位作者2013-04-29Journal of Vinyl and Additive Technology

The aim of this work was to investigate the sorption characteristics of Fe 3 O 4 coated on polyaniline (Fe 3 O 4 /PAn) for the removal of NO 3 − ions from aqueous solutions. The sorption of NO 3 − ions by the batch method was carried out. The optimum conditions of sorption were found to be a Fe 3 O 4 /PAn dose of 0.4…

Adsorption and biosorption for pollutant removalCovalent Organic Framework ApplicationsChemical Synthesis and Characterization

Studies on fabrication of urchin‐like WO3·H2O hollow spheres and their photocatalytic properties

Qi Zeng、Yan Zhao、Jingzhe Zhao 等 9 位作者2013-04-29Crystal Research and Technology

Urchin‐like tungsten oxide hydrate (WO 3 · H 2 O) hollow spheres were successfully synthesized via a self‐sacrifice template method at low temperature. The effects of reaction parameters on the preparation were studied in solution. The growth mechanism was also proposed on the basis of experimental results. In additio…

Advanced Photocatalysis TechniquesGas Sensing Nanomaterials and SensorsTransition Metal Oxide Nanomaterials

Defects and Domain Boundaries in Self-Assembled Terephthalic Acid (TPA) Monolayers on CVD-Grown Graphene on Pt(111)

Rafik Addou、Matthias Batzill2013-04-29Langmuir

Self-assembly of terephthalic acid (TPA), vacuum deposited on Pt(111) supported graphene, has been investigated by scanning tunneling microscopy (STM). TPA organizes in an ordered 3 × 4 superstructure with respect to the graphene lattice. This structure is a consequence of hydrogen-bonded TPA chains that arrange in a…

Graphene research and applicationsSurface Chemistry and CatalysisSurface and Thin Film Phenomena