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Structure of glycerol-3-phosphate dehydrogenase (GPD1) fromSaccharomyces cerevisiaeat 2.45 Å resolution

David Aparicio、Munmun Nandi、X. Carpena 等 5 位作者2012-10-26Acta Crystallographica Section F Structural Biology and Crystallization Communications

The interconversion of glycerol 3-phosphate and dihydroxyacetone phosphate by glycerol-3-phosphate dehydrogenases provides a link between carbohydrate and lipid metabolism and provides Saccharomyces cerevisiae with protection against osmotic and anoxic stress. The first structure of a glycerol-3-phosphate dehydrogenas…

Microbial Metabolic Engineering and BioproductionEnzyme Structure and FunctionLipid metabolism and biosynthesis

IDENTIFYING APPROPRIATE CONDITIONS FOR PRODUCING SPINDLE-LIKE CAUSTICIZING PRECIPITATED CALCIUM CARBONATE FOR PAPER FILLER APPLICATIONS

Jin Wang、Wei Peng、Peng Liu 等 4 位作者2012-10-26BioResources

Causticizing precipitated calcium carbonate (CPCC) as a by-product of the green liquor causticizing process can be used as paper filler to save resources and reduce costs. In this study, CPCC was prepared with green liquor and quicklime, which were obtained from an alkali recovery line of a paper mill. The factors inf…

Advanced Cellulose Research StudiesBauxite Residue and UtilizationMaterials Engineering and Processing

A Combined Atomic Force Microscopy and Computational Approach for the Structural Elucidation of Breitfussin A and B: Highly Modified Halogenated Dipeptides from Thuiaria breitfussi

Kine Ø. Hanssen、Bruno Schuler、Antony Williams 等 17 位作者2012-10-26Angewandte Chemie

Neue Klasse: Erstmals konnten Strukturen von aus Thuiaria breitfussi isolierten Verbindungen – den Breitfussinen – aufgeklärt werden. Diese Strukturklasse besteht aus Indol-Oxazol-Pyrrol-Einheiten. Wegen der geringen Mengen gelang keine Kristallisation, weshalb die Strukturen mit einer neuartigen Kombination aus Raste…

Microbial Natural Products and BiosynthesisEnzyme Structure and FunctionPlant biochemistry and biosynthesis

Protein Dynamics Governed by Interfaces of High Polarity and Low Packing Density

Vladimir Espinosa Angarica、Javier Sancho2012-10-26PLoS ONE

The folding pathway, three-dimensional structure and intrinsic dynamics of proteins are governed by their amino acid sequences. Internal protein surfaces with physicochemical properties appropriate to modulate conformational fluctuations could play important roles in folding and dynamics. We show here that proteins co…

Protein Structure and DynamicsMass Spectrometry Techniques and ApplicationsEnzyme Structure and Function

Percutaneous Tissue-Engineered Pulmonary Valved Stent Implantation: Comparison of Bone Marrow-Derived CD133+-Cells and Cells Obtained from Carotid Artery

Jessica Boldt、Georg Lutter、Judith Pohanke 等 7 位作者2012-10-26Tissue Engineering Part C Methods

OBJECTIVE: The aim of tissue engineering is, for instance, to create a new valve or organ that is similar to the native one. This new construct may have the capability of growth, repair, and remodeling. One instance where tissue engineering offers an enormous advantage is in the treatment of Tetralogy of Fallot. After…

Electrospun Nanofibers in Biomedical ApplicationsCongenital heart defects researchTissue Engineering and Regenerative Medicine

Fermentation kinetics makeover in poly-ε-lysine biosynthesis by Streptomyces noursei NRRL 5126

Sandip B. Bankar、Rekha S. Singhal2012-10-26Journal Of Biochemical Technology

An unstructured model has been used to predict microbial growth based on glycerol consumption and p oly-e-lysine ( e-PL) biosynthesis by Streptomyces noursei NRRL 5126. The logistic and Luedeking-Piret equations have been proposed to describe the time course of e-PL formation, substrate consumption and cell growth. Th…

biodegradable polymer synthesis and propertiesPolyamine Metabolism and ApplicationsBiopolymer Synthesis and Applications

Correlation Between the Optical and the Structural Properties in SrZrO3 Nanocrystals

Dongjae LEE、Yunsang LEE2012-10-26New Physics Sae Mulli

We used optical and photoluminescence spectroscopic techniques to investigate the optical and the structural properties of SrZrO3 nanocrystals (NCs) synthesized by using the combustion method. As-synthesized SrZrO3 NCs were post-annealed at various annealing temperatures and under various ambient conditions. The absor…

ZnO doping and propertiesCatalytic Processes in Materials ScienceSemiconductor materials and devices

Modeling of push-out test for interfacial fracture toughness of fiber-reinforced composites

Meini Yuan、Yanqing Yang、Zhenhai Xia2012-10-26Advanced Composite Materials

An analytical model of the push-out test was developed to predict the interfacial fracture toughness of fiber-reinforced matrix composites. Elastic deformation, thermal residual stress, Poisson effect, and energy dissipation due to interfacial friction are all accounted for in the model based on a fracture mechanics a…

Advanced ceramic materials synthesisMechanical Behavior of CompositesFiber-reinforced polymer composites

Morphology Study of New Shaped Porous Nanotubes of LiFePO4 by Electrospinning

Chung Soo Kang、Cheong Kim、Tae Jun Park 等 4 位作者2012-10-26Chemistry Letters

Abstract Porous nanotubes of lithium iron phosphate (LiFePO4) were synthesized from a metal oxide precursor by the electrospinning method. After calcination of the above precursor nanotube at 800 °C, LiFePO4 nanotubes with a diameter in the range of 150–500 nm, were obtained. Poly(vinylpyrrolidone) had an important ro…

Advancements in Battery MaterialsSupercapacitor Materials and FabricationAdvanced Battery Materials and Technologies

Characterization of the Dispersion Interactions and an ab Initio Study of van der Waals Potential Energy Parameters for Coinage Metal Clusters

Richard Hatz、Markus Korpinen、Vesa Hänninen 等 4 位作者2012-10-26The Journal of Physical Chemistry A

Dispersion interactions and van der Waals C(6) coefficients are studied in small model systems involving copper, silver, and gold atoms. We investigate a novel method where the intermolecular dispersion interactions are characterized by interatomic C(6) coefficients that can be used to formulate the dispersion energy…

Advanced Chemical Physics StudiesNanocluster Synthesis and ApplicationsInorganic Fluorides and Related Compounds

Crystal AlN deposited at low temperature by magnetic field enhanced plasma assisted atomic layer deposition

Wenwen Lei、Qiang Chen2012-10-26Journal of Vacuum Science & Technology A Vacuum Surfaces and Films

In this paper, AlN films prepared at low temperature by magnetic field enhanced plasma assisted atomic layer deposition (PA-ALD) using trimethyl aluminum and the mixture gas of nitrogen and hydrogen were investigated. Two discharge modes were employed for PA-ALD AlN, i.e., radio-frequency (RF) discharge mode and micro…

ZnO doping and propertiesGaN-based semiconductor devices and materialsSemiconductor materials and devices

Rationalizing the 1.9 Å Crystal Structure of Photosystem II—A Remarkable Jahn–Teller Balancing Act Induced by a Single Proton Transfer

Phillip Gatt、Simon Petrie、Rob Stranger 等 4 位作者2012-10-26Angewandte Chemie

Ausbalanciert: Nach DFT-Rechnungen sind die Strukturen des wasseroxidierenden Komplexes in zwei aktuellen Einkristalluntersuchungen am Photosystem II bei Auflösungen von 2.9 bzw. 1.9 Å durch einen Einprotonentransfer verknüpfte Tautomere. Das anomale Sauerstoffatom, O(5), das in der 1.9-Å-Struktur schwach an vier Meta…

Photosynthetic Processes and MechanismsPorphyrin and Phthalocyanine ChemistryMetal-Catalyzed Oxygenation Mechanisms

Lanthanide Complexes of the Kläui Metalloligand, CpCo(P═O(OR)2)3: An Examination of Ligand Exchange Kinetics between Isotopomers by Electrospray Mass Spectrometry

Kevin J. Allen、Emma C. Nicholls-Allison、Kevin R. D. Johnson 等 7 位作者2012-10-26Inorganic Chemistry

A series of lanthanide complexes, {[CpCo(P═O(OR)2)3]2Ln(H2O)x}(+)Cl(-) (Ln = Nd, 3; Eu, 4; Tb, 5; Yb, 6; R = Et, a; R = Ph, b) bearing two cobalt metalloligands were prepared. Electrospray mass spectrometry and thermogravimetric analysis suggest that the cations are either solvent-free or contain very weakly bound wat…

Magnetism in coordination complexesRadioactive element chemistry and processingLanthanide and Transition Metal Complexes

Carbon Nanocages: Nitrogen‐Doped Carbon Nanocages as Efficient Metal‐Free Electrocatalysts for Oxygen Reduction Reaction (Adv. Mater. 41/2012)

Sheng Chen、Jiyu Bi、Yu Zhao 等 9 位作者2012-10-26Advanced Materials

N-doped carbon nanocages (NCNCs) with large specific surface area up to 1393 m2 g−1 are produced for the first time, which demonstrate excellent ORR performances with high activity. Without the interference of any ORR-active metal impurities in NCNCs, the experimental results confirm the origin of ORR activity from th…

Electrocatalysts for Energy ConversionFuel Cells and Related MaterialsConducting polymers and applications

Electrowetting on functional fibers

Renaud Dufour、Alfred Dibao-Dina、Maxime Harnois 等 8 位作者2012-10-26Soft Matter

We report on experiments of electrowetting on dielectric (EWOD) on functional fibers in air. Firstly, we investigate the evolution of drop contact angle θ with the applied voltage Vrms. θ(Vrms) relationship is compared to the theoretical Young–Dupre model and shows a good agreement at low voltage. However it appears t…

Surface Modification and SuperhydrophobicityElectrowetting and Microfluidic TechnologiesModular Robots and Swarm Intelligence

Homoisocitrate dehydrogenase fromCandida albicans: properties, inhibition, and targeting by an antifungal pro-drug

Iwona Gabriel、Natasha D. Vetter、David R. J. Palmer 等 6 位作者2012-10-26FEMS Yeast Research

The LYS12 gene from Candida albicans, coding for homoisocitrate dehydrogenase was cloned and expressed as a His-tagged protein in Escherichia coli. The purified gene product catalyzes the Mg(2+)- and K(+)-dependent oxidative decarboxylation of homoisocitrate to α-ketoadipate. The recombinant enzyme demonstrates strict…

HIV/AIDS drug development and treatmentEnzyme Structure and FunctionBiochemical and Molecular Research

Strategy of modelling and simulation of electromechanical conversion in ZnO nanowires

Olivier Graton、Guylaine Poulin‐Vittrant、L P Tran Huu Hue 等 4 位作者2012-10-26Advances in Applied Ceramics Structural Functional and Bioceramics

A strategy to establish a model that takes into account the different pitfalls relative to the simulation of ZnO nanowire (NW) based devices is proposed. Starting from the governing equations of the problem, an equivalent circuit of a ZnO NW working in quasi-static 33 mode is established. It takes into account the sem…

Advanced Sensor and Energy Harvesting MaterialsAdvanced Thermoelectric Materials and DevicesInnovative Energy Harvesting Technologies

Formation of Nanocrystals of a Zinc Pillared-layer Porous Coordination Polymer Using Microwave-assisted Coordination Modulation

Yoko Sakata、Shuhei Furukawa、Chiwon Kim 等 4 位作者2012-10-26Chemistry Letters

Abstract Nanocrystals of three-dimensional pillared-layer type porous coordination polymers, [Zn2(ndc)2(dabco)]n, were fabricated by microwave-assisted coordination modulation, and its morphology was controlled by changing the modulator concentration. Adsorption measurement supported that the crystallinity and intrins…

Metal-Organic Frameworks: Synthesis and ApplicationsPolyoxometalates: Synthesis and ApplicationsCovalent Organic Framework Applications

Self-Assembly of Conjugated Polymer on Hybrid Nanospheres for Cellular Imaging Applications

Bihua Xia、Xiaoyu Wang、Fang He 等 5 位作者2012-10-26ACS Applied Materials & Interfaces

A new kind of hybrid core-shell nanosphere was fabricated by combining the in situ formation of Au nanoparticles and covalent cross-linking of biocompatible carboxymethyl starch dialdehyde (CMSD) and chitosan (CTS). When the fluorescent dye poly[9,9'-bis(6″-(N,N,N-trimethylammonium)-hexyl)fluorene-2,7-ylenevinylene-co…

Advanced biosensing and bioanalysis techniquesNanoplatforms for cancer theranosticsNanocluster Synthesis and Applications

Cell‐based therapies for epidermolysis bullosa – from bench to bedside

Jouni Uitto、Cristina Has、Leena Bruckner‐Tuderman2012-10-26JDDG Journal der Deutschen Dermatologischen Gesellschaft

Significant progress has been made over the past two decades in molecular genetics of epidermolysis bullosa (EB), a group of heritable blistering disorders, with diagnostic and prognostic implications. More recently, novel molecular approaches have been developed towards potential treatment of EB, with emphasis on gen…

Skin and Cellular Biology ResearchAutoimmune Bullous Skin DiseasesSilk-based biomaterials and applications