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Crystal structure of the active form of native human thymidylate synthase in the absence of bound substrates

Patrick Deschamps、S. Réty、Joseph Bareille 等 4 位作者2017-05-25Acta Crystallographica Section F Structural Biology Communications

Human thymidylate synthase (hTS) provides the solede novointracellular source of thymidine 5′-monophosphate (dTMP). hTS is required for DNA replication prior to cell division, making it an attractive target for anticancer chemotherapy and drug discovery. hTS binds 2′-deoxyuridine 5′-monophosphate (dUMP) and the folate…

Folate and B Vitamins ResearchEnzyme Structure and FunctionBiochemical and Molecular Research

Draft Genome Sequence of Magnesium-Dissolving Lactococcus garvieae A1, Isolated from Soil

Gonca Altın、Emrah Nıkerel、Fikrettin Şahi̇n2017-05-25Genome Announcements

ABSTRACT The probiotic bacterium Lactococcus garvieae A1, isolated from soil, is interesting for biomining applications. Here, we report the draft genome sequence and annotation of this strain, with a focus on metal transporter enzymes.

Corrosion Behavior and InhibitionMetal Extraction and BioleachingMine drainage and remediation techniques

Oxide Crystal Structure with Square-Pyramidally Coordinated Vanadium for Integrated Electronics Manufactured at Ultralow Processing Temperatures

Matjaž Valant、Jasminka Popović、Mojca Vrčon Mihelj 等 6 位作者2017-05-25ACS Sustainable Chemistry & Engineering

The study describes a targeted synthesis of a new dielectric material for an emerging ULTCC-I technology (ultralow temperature co-fired ceramic technology), which resulted in discovery of a PbTeV 2 O 8 phase. A structural solution from powder data showed that the phase belongs to no known crystallographic family and i…

Ferroelectric and Piezoelectric MaterialsMicrowave Dielectric Ceramics SynthesisNuclear materials and radiation effects

Photocatalytic Nanosheet Lithography: Photolithography based on Organically Modified Photoactive 2D Nanosheets

Pirmin Ganter、Bettina V. Lotsch2017-05-25Angewandte Chemie

Abstract Harvesting the properties of nanosheets is not only crucial from a fundamental perspective, but also for the development of novel functional devices based on 2D nanosheets. Herein, we demonstrate the processing of organically modified TBAxH1−xCa2Nb3O10 nanosheets into photonic thin films and study their color…

Advanced Sensor and Energy Harvesting MaterialsGas Sensing Nanomaterials and SensorsCovalent Organic Framework Applications

Charge-based deep level transient spectroscopy of B-doped and undoped polycrystalline diamond films

K. Paprocki、K. Fabisiak、Robert Bogdanowicz 等 8 位作者2017-05-25Journal of Materials Science

The undoped and B-doped polycrystalline diamond thin film was synthesized by hot filament chemical vapor deposition and microwave plasma, respectively. The structural characterization was performed by scanning electron microscopy, X-ray diffraction and Raman spectroscopy. The electrical properties of synthesized diamo…

Metal and Thin Film MechanicsHigh-pressure geophysics and materialsDiamond and Carbon-based Materials Research

Structure diagnostics of heterostructures and multi-layered systems by X-ray multiple diffraction

Mariana Borcha、І. М. Фодчук、Mykola Solodkyi 等 4 位作者2017-05-25Journal of Applied Crystallography

This article presents the results of research on multi-layered heterostructures by a modified calculation technique of multiple X-ray diffraction. The Al x In1−x Sb heterostructure and a Zn(Mn)Se/GaAs(001) multi-layered system were used as models to specify conditions for cases of coincidental coplanar three-beam or c…

Advanced Semiconductor Detectors and MaterialsX-ray Diffraction in CrystallographyCrystallography and Radiation Phenomena

Substituting Tyr138 in the active site loop of human phenylalanine hydroxylase affects catalysis and substrate activation

João Leandro、Anne Jorunn Stokka、Knut Teigen 等 5 位作者2017-05-25FEBS Open Bio

Mammalian phenylalanine hydroxylase (PAH) is a key enzyme in l‐phenylalanine (l‐Phe) metabolism and is active as a homotetramer. Biochemical and biophysical work has demonstrated that it cycles between two states with a variably low and a high activity, and that the substrate l‐Phe is the key player in this transition…

Protein Structure and DynamicsMetabolism and Genetic DisordersEnzyme Structure and Function

A charge-transfer salt composed of methyl viologen and hexacyanidoferrate(II)

Rikako Tanaka、Nobuyuki Matsushita2017-05-25Acta Crystallographica Section C Structural Chemistry

The methyl viologen dication, used under the name Paraquat as an agricultural reagent, is a well-known electron-acceptor species that can participate in charge-transfer (CT) interactions. The determination of the crystal structure of this species is important for accessing the CT interaction and CT-based properties. T…

Crystal structures of chemical compoundsMagnetism in coordination complexesLanthanide and Transition Metal Complexes

Barium strontium oxide functionalized carbon nanotubes thin film thermionic emitter with superior thermionic emission capability

Feng Jin、Allyn Beaver2017-05-25Journal of Vacuum Science & Technology B Nanotechnology and Microelectronics Materials Processing Measurement and Phenomena

Despite their potential, thin film thermionic emitters are yet to appear in real device applications. The main shortcoming for thin film thermionic emitters is their weak emission capability as compared to conventional thermionic cathodes. In this study, a high performance thin film thermionic emitter with emission ca…

Carbon Nanotubes in CompositesSilicon Nanostructures and PhotoluminescenceThermal Radiation and Cooling Technologies

H 2 -dependent attachment kinetics and shape evolution in chemical vapor deposition graphene growth

Esteban Meca、Vivek B. Shenoy、John Lowengrub2017-05-252D Materials

Abstract Experiments on graphene growth through chemical vapor deposition (CVD) involving methane (CH 4 ) and hydrogen (H 2 ) gases reveal a complex shape evolution and a non-monotonic dependence on the partial pressure of H 2 ( p H 2 ). To explain these intriguing observations, we develop a microkinetic model for the…

Graphene research and applications2D Materials and ApplicationsThermal properties of materials

3-D New Calculation Principle of Levitation Force Between Permanent Magnet and Hard Type-II Superconductor Using Integral Approach

Asma Azzouza、Hicham Allag、Jean-Paul Yonnet 等 4 位作者2017-05-25IEEE Transactions on Magnetics

A new contribution is given for the calculation of interaction forces between the permanent magnet (PM) and a hard type-II superconductor (SC) used as a classical levitation system. The forces and also mutual inductances are developed via Green's functions using an Amperian model, assuming a cuboidal thin coil for PM…

Physics of Superconductivity and MagnetismMagnetic Properties and ApplicationsSuperconducting Materials and Applications

Glycopolymer brushes with specific protein recognition property

Talya Tuğana Kurşun、Dilek Çimen、Tuncer Çaykara2017-05-25Journal of Applied Polymer Science

ABSTRACT Here, we report the synthesis of glycopolymer brushes on the silicon substrate by interface‐mediated reversible addition‐fragmentation chain transfer polymerization of pentafluorophenyl acrylate as well as subsequent attachment of d‐glucosamine to determine specific and nonspecific protein interactions. The r…

Microfluidic and Capillary Electrophoresis ApplicationsPolymer Surface Interaction StudiesProtein purification and stability

One Step Toward a New Generation of C-MOS Compatible Oxide P–N Junctions: Structure of the LSMO/ZnO Interface Elucidated by an Experimental and Theoretical Synergic Work

D. Pullini、Mauro Francesco Sgroi、Agnes Mahmoud 等 12 位作者2017-05-25ACS Applied Materials & Interfaces

/ZnO (LSMO/ZnO) interfaces exhibit extremely interesting electronic properties making them promising candidates for novel oxide p-n junctions, with multifunctional features. In this work, the structure of the interface is studied through a combined experimental/theoretical approach. Heterostructures were grown epitaxi…

ZnO doping and propertiesMagnetic and transport properties of perovskites and related materialsElectronic and Structural Properties of Oxides

Sensitive and Selective Fluorescent and Colorimetric Sensor for Ag+ Based on the Supramolecular Self‐Assembly in Semi‐Water

Tai‐Bao Wei、Haili Zhang、Wenting Li 等 8 位作者2017-05-25Chinese Journal of Chemistry

Specific recognition of ultratrace levels of ions in semi‐water using super‐quicker methods is still a challenge for environmental monitoring. Herein we report a fluorescent and colormetric sensor (ZH) based on supramolecular self‐assembly, whose structure was destroyed by the addition of ultratrace of silver ions. Th…

Advanced biosensing and bioanalysis techniquesMolecular Sensors and Ion DetectionLuminescence and Fluorescent Materials

Synthesis of elastin‐based polymer and evaluation of its intermolecular interactions with hydroxypropyl methylcellulose

B. Mahesh、G. S. Nanjundaswamy、D. Channe Gowda 等 4 位作者2017-05-25Journal of Applied Polymer Science

ABSTRACT The parent repeating sequence of elastin, poly(GVGVP), was synthesized using solution phase method and characterized by 13C‐ and 1H‐NMR spectroscopy. In order to study the polymer–polymer interactions between poly(GVGVP) and hydroxyl propyl methyl cellulose (HPMC), the blends were prepared both in aqueous and…

Advanced Cellulose Research StudiesConnective tissue disorders researchElasticity and Material Modeling

Theoretical Determination of Band Edge Alignments at the Water–CuInS2(112) Semiconductor Interface

Thomas P. Senftle、Emily A. Carter2017-05-25Langmuir

Knowledge of a semiconductor electrode’s band edge alignment is essential for optimizing processes that occur at the semiconductor/electrolyte interface. Photocatalytic processes are particularly sensitive to such alignments, as they govern the transfer of photoexcited electrons or holes from the surface to reactants…

Quantum Dots Synthesis And PropertiesChalcogenide Semiconductor Thin FilmsCopper-based nanomaterials and applications

Alizarin Red S-Confined Layer-By-Layer Films as Redox-Active Coatings on Electrodes for the Voltammetric Determination of L-Dopa

Shigehiro Takahashi、Iwao Suzuki、Tatsuro Sugawara 等 6 位作者2017-05-25Materials

The preparation of redox-active coatings is a key step in fabricating electrochemical biosensors. To this goal, a variety of coating materials have been used in combination with redox-active compounds. In this study, alizarin red S (ARS) was confined in layer-by-layer (LbL) films composed of poly(ethyleneimine) (PEI)…

Electrochemical sensors and biosensorsConducting polymers and applicationsElectrochemical Analysis and Applications

Influence of Extended Conjugation on Photophysical/Electronic Properties and Photoelimination of BN-Heterocycles

Yonggang Shi、Xiang Wang、Nan Wang 等 5 位作者2017-05-25Organometallics

A 1,1-hydroboration reaction was used successfully to create brominated BN-heterocyclic compounds, which are amenable to Stille coupling reactions for the construction of new BN-heterocyclic compounds, including a new polymeric BN-heterocycle that has an extended π-conjugated backbone. The conjugated backbone of the n…

Organic Light-Emitting Diodes ResearchLuminescence and Fluorescent MaterialsOrganoboron and organosilicon chemistry

Wood Adhesives Containing Proteins and Carbohydrates

Hongyang Cheng、Zhongqi He2017-05-25OpenAlex

In recent years there has been resurgent interest in using biopolymers as sustainable and environmentally friendly ingredients in wood adhesive formulations. Among them, proteins and carbohydrates are the most commonly used. In this chapter, an overview is given of protein-based and carbohydrate-based wood adhesives.…

biodegradable polymer synthesis and properties

Time-dependent dielectric breakdown characterizations of interlayer dielectric damage induced during plasma processing

Kengo Shinohara、Kentaro Nishida、Kouichi Ono 等 4 位作者2017-05-25Japanese Journal of Applied Physics

Abstract We proposed an electrical evaluation method on the basis of leakage current–stress time ( I–t ) measurement for plasma-induced damage (PID) in interlayer dielectric films. The I–t measurement, which is widely used for the time-dependent dielectric breakdown (TDDB) test is applied to the evaluation of PID in t…

Metal and Thin Film MechanicsSemiconductor materials and devicesCopper Interconnects and Reliability