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Bis(tetrabenzotriazaporphyrinato) and (tetrabenzotriazaporphyrinato)(phthalocyaninato) lutetium(iii) complexes – novel sandwich-type tetrapyrrolic ligand based NIR absorbing electrochromes

Victor E. Pushkarev、Valery V. Kalashnikov、Stanislav Trashin 等 6 位作者2013-01-01Dalton Transactions

The first sandwich-type complexes have been prepared for tetrabenzotriazaporphyrin ligands. The compounds reveal intrinsic UV-Vis/NIR absorption as well as peculiar electrochromic behavior. The heteroleptic (tetrabenzotriazaporphyrinato)(phthalocyaninato) lutetium derivative shows intermediate spectral and electrochem…

Conducting polymers and applicationsPorphyrin and Phthalocyanine ChemistryAnalytical Chemistry and Sensors

LiCu2[BP2O8(OH)2]: a chiral open-framework copper borophosphate via spontaneous asymmetrical crystallization

Miao Yang、Xinjie Li、Jihong Yu 等 7 位作者2013-01-01Dalton Transactions

A new chiral copper borophosphate, LiCu2[BP2O8(OH)2] (1), was crystallized from achiral inorganic raw materials in boric acid flux reaction. The structure features a 9-ring channel enclosed by triple right-handed helices. The bulk sample exhibits optical activity confirmed by circular dichroism (CD) spectra, indicatin…

Crystallography and molecular interactionsCrystal Structures and PropertiesChemical Synthesis and Characterization

Pluronic L61 as a long-circulating modifier for enhanced liposomal delivery of cancer drugs

Ye Wang、Ergang Liu、Xiaoyi Sun 等 9 位作者2013-01-01Polymer Chemistry

Pluronic copolymer L61 was found to possess a stealth function for liposomal drug delivery, comparing favorably to PEG. The liposomes modified with 0.1% L61 (w/w) were long-circulating, and preferentially accumulated in the tumor site. The paclitaxel-loaded L61-liposomes with a single injection dose could successfully…

Nanoparticle-Based Drug DeliveryRNA Interference and Gene DeliveryNanoplatforms for cancer theranostics

Synthesis of a hetero-dinuclear metal complex in a porphyrin/phthalocyanine four-fold rotaxane

Yasuyuki Yamada、Nozomi Mihara、Kentaro Tanaka2013-01-01Dalton Transactions

We report synthesis of a hetero-dinuclear metal complex in a four-fold rotaxane, in which a Cu(2+)-porphyrin and a Zn(2+)-phthalocyanine are cofacially stacked. Interaction between the two metal complexes in the rotaxane was investigated by a UV-Vis absorption spectral study.

Supramolecular Chemistry and ComplexesPorphyrin and Phthalocyanine ChemistryLuminescence and Fluorescent Materials

Change of Extracellular Polymeric Substances Composition of Thiobacillus thioparus in Presence of Sulfur and Steel

Mariia Boretska、Sören Bellenberg2013-01-01Journal of Microbial & Biochemical Technology

The process of microbially influenced corrosion (MIC) of metallic underground constructions is often related with biofilm formation and metabolic activity of sulfur cycle bacteria. The extracellular polymeric substances (EPS) produced by these bacteria in biofilms on metallic surfaces establish the interfacial reactio…

Corrosion Behavior and InhibitionBacterial biofilms and quorum sensingMetal Extraction and Bioleaching

Silica mineralisation of DNA chiral packing: helicity control and formation mechanism of impeller-like DNA–silica helical architectures

Ben Liu、Lu Han、Shunai Che2013-01-01Journal of Materials Chemistry B

Understanding the formation of biologically relevant materials is essential for revealing the structural components of life and assists the development of new functional materials that mimic the state-of-the-art morphologies and structures observed in nature. In this study, we developed an in vitro mineral model syste…

Mesoporous Materials and CatalysisSupramolecular Self-Assembly in MaterialsDiatoms and Algae Research

Identification of promising chemical systems for the synthesis of new materials structure types: An ab initio minimization data mining approach

Dejan Zagorac、J. Christian Schön、Martin Jansen2013-01-01Processing and Application of Ceramics

In this research we performed data exploring for binary compounds with elements from groups V, IV-VI, and III-VII, with the goal to identify chemical systems where the recently proposed ?5-5? structure type might be experimentally accessible. Among others, TlF, SnO, SnS, SnSe, GeS, GeSe, PbO, PbS, ZnO and ZnS, were ch…

Computational Drug Discovery MethodsMachine Learning in Materials ScienceWater Quality Monitoring and Analysis

Effect of Surfactant Concentration Variation on the Thermoelectric Properties of Mesoporous ZnO

Min Hee Hong、Chang-Sun Park、Sangwoo Shin 等 8 位作者2013-01-01Journal of Nanomaterials

The electrical and thermal conductivities and the Seebeck coefficient of mesoporous ZnO thin films were investigated to determine the change of their thermoelectric properties by controlling surfactant concentration in the mesoporous ZnO films, because the thermoelectric properties of mesoporous ZnO films can be influ…

ZnO doping and propertiesAdvanced Thermoelectric Materials and DevicesFluid Dynamics and Thin Films

Development of a Solidification Model for TEXAS-VI Code and Application to FARO L14 Analysis

R. H. Chen、Michael L. Corradini、G.H. Su 等 4 位作者2013-01-01Nuclear Science and Engineering

A molten fuel breakup model that considers solidification effects is proposed in this paper. Both the effect of a solid crust layer and the effect of thermal stresses on the fuel particle fragmentation are taken into account in this model. This solidification model predicts the transient temperature profile and crust…

Nuclear reactor physics and engineeringNuclear Materials and PropertiesHeat transfer and supercritical fluids

Protons crossing triple phase boundaries based on a metal catalyst, Pd or Ni, and barium zirconate

Massimo Malagoli、Meilin Liu、Hyeon Cheol Park 等 4 位作者2013-01-01Physical Chemistry Chemical Physics

Density functional theory calculations are used to investigate the energetics of protons crossing triple phase boundaries based on a metal catalyst, Pd or Ni, and barium zirconate. Our calculations show that the proton transfer reaction at these interfaces is controlled by the terminal layer of the electrolyte in cont…

Electrocatalysts for Energy ConversionAdvancements in Solid Oxide Fuel CellsNuclear Materials and Properties

Photocatalytic and Magnetic Behaviors Observed in BiFeO3 Nanofibers by Electrospinning

Xuehui Zhang、Haiyang Liu、Bin Zheng 等 6 位作者2013-01-01Journal of Nanomaterials

Perovskite‐type BiFeO 3 nanofibers with wave nodes‐like morphology were prepared by electrospinning. The nanofibers show a highly enhanced visible‐light‐active photocatalytic property. The results also showed that the diameter could affect the band gap and photocatalytic performances of nanofibers. Additionally, weak…

Ferroelectric and Piezoelectric MaterialsConducting polymers and applicationsMultiferroics and related materials

Carbolithiation of meso-aryl-substituted 5,15-diazaporphyrin selectively provides 3-alkylated diazachlorins

Ayaka Yamaji、Satoru Hiroto、Ji‐Young Shin 等 4 位作者2013-01-01Chemical Communications

Treatment of meso-mesityl 5,15-diazaporphyrin with alkyllithiums in toluene at low temperature provided monoalkylated diazachlorins through highly regioselective nucleophilic addition at the β-position near the meso-nitrogen atom.

Supramolecular Chemistry and ComplexesMagnetism in coordination complexesPorphyrin and Phthalocyanine Chemistry

Physiological formation of fluorescent and conductive protein microfibers in live fibroblasts upon spontaneous uptake of biocompatible fluorophores

Ilenia Viola、Ilaria Elena Palamà、Addolorata M. L. Coluccia 等 9 位作者2013-01-01Integrative Biology

We have recently reported initial results concerning an original approach to introduce additional properties into fibrillar proteins produced by live fibroblasts and extruded into the ECM. The key to such an approach was biocompatible, fluorescent and semiconducting synthetic molecules which penetrated spontaneously t…

Bone Tissue Engineering Materials3D Printing in Biomedical ResearchCollagen: Extraction and Characterization

Controlled deposition of ultra-small Ag particles on TiO2 nanorods: oxide/metal hetero-nanostructures with improved catalytic activity

Dongpeng Yang、Nating Yang、Jianping Ge2013-01-01CrystEngComm

TiO2–Ag hetero-nanocrystals (HNCs) with controllable Ag particle numbers and domain size were synthesized by in situ reduction of silver acetate and further growth of Ag on TiO2 nanorods. The nucleation of Ag on TiO2 as well as the tuning of Ag number and size can be explained by the electrostatic attraction between A…

Gold and Silver Nanoparticles Synthesis and ApplicationsCatalytic Processes in Materials ScienceNanomaterials for catalytic reactions

K4TM4(V2O7)2(IO3)4(H2O) (TM = Zn, Ni, Co): a series of quinary mixed metal–vanadium(v)–iodates

Bing‐Ping Yang、Xiang Xu、Chao Huang 等 4 位作者2013-01-01CrystEngComm

Systematic explorations of new compounds in the divalent transition metal–vanadium(V)–iodate system by hydrothermal reactions led to three quinary mixed metal iodates, namely, K4TM4(V2O7)2(IO3)4(H2O) (TM = Zn, Ni, Co). They represent the first examples of quinary mixed metal vanadium iodates. The structures of K4TM4(V…

Crystal Structures and PropertiesPolyoxometalates: Synthesis and ApplicationsAdvanced Condensed Matter Physics

Effect of zinc injection on the corrosion products in nuclear fuel assembly

Jinsoo Choi、Seung-Chul Park、Kyoung-Rok Park 等 5 位作者2013-01-01Natural Science

The accumulation of corrosive and radioactive wastes in the primary system, including nuclear fuel assembly, significantly increases workers’ exposure to radiation. Zinc injection from 5 to 40 ppb into the Reactor Coolant System (RCS) of Pressurized Water Reactors (PWRs) has been known as an effective method to decrea…

Nuclear reactor physics and engineeringRadioactive element chemistry and processingNuclear Materials and Properties

Hydrothermal synthesis and controlled growth of vanadium oxide nanocrystals

Dragica M. Minić、Vladimir A. Blagojević2013-01-01CrystEngComm

0-, 1- and 2-dimensional nanocrystals of different vanadium oxides were synthesized using hydrothermal reaction of commercial bulk monoclinic VO2 and V2O3 precursor, which, depending on reaction conditions, produced nanoparticles, nanoribbons and nanosheets of different vanadium oxides. Addition of acetone was used to…

Transition Metal Oxide NanomaterialsPolyoxometalates: Synthesis and ApplicationsCatalysis and Oxidation Reactions

A Study on the Correlation between Fragility and Cooperativity in Wide Class of Glass-forming Substances

Masaru Aniya、Masahiro Ikeda2013-01-01Physics Procedia

The understanding of the cooperativity and heterogeneity in various kinds of glass forming liquids is a hot topic. In the present paper, the relationship between the cooperativity and the fragility has been studied based on the bond strength- coordination number fluctuation model. The model describes the temperature d…

Material Dynamics and PropertiesGlass properties and applicationsTheoretical and Computational Physics

Effect of ceria structural properties on the catalytic activity of Au–CeO2 catalysts for WGS reaction

Floriana Vindigni、Maela Manzoli、T. Tabakova 等 6 位作者2013-01-01Physical Chemistry Chemical Physics

Two gold based catalysts supported on ceria prepared by different methods (urea gelation coprecipitation, UGC, and coprecipitation, CP) have been synthesized and tested in the WGS reaction, showing quite different catalytic behaviors. Interestingly, the two catalysts have the same gold loading (3 wt% Au was inserted b…

Catalytic Processes in Materials ScienceNanocluster Synthesis and ApplicationsAdvanced Nanomaterials in Catalysis

Measurement of the Deformation of Aluminum Alloys under High Strain Rates Using High Speed Digital Cameras

Gbadebo Owolabi、Daniel Odoh、Alex Peterson 等 5 位作者2013-01-01World Journal of Mechanics

Aluminum alloys exhibit an attractive combination of mechanical and physical properties such as high stiffness and low density, which favors their utilization in many structural applications. Thus, increasing the structural applications of aluminum alloy is the driving force for the need to adequately understand its d…

Optical measurement and interference techniquesAdvanced Surface Polishing TechniquesHigh-Velocity Impact and Material Behavior