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Sonocrystallization Yields Monoclinic Paracetamol with Significantly Improved Compaction Behavior

Dejan‐Krešimir Bučar、James A. Elliott、Mark D. Eddleston 等 5 位作者2014-11-04Angewandte Chemie

Abstract Ultrasound‐assisted crystallization (sonocrystallization) was used to prepare a mixture of nano‐ and micrometer‐sized crystals of the monoclinic form of paracetamol—a widely used analgesic known for its particularly problematic mechanical behavior under compression (i.e. poor tabletability). The nano‐ and mic…

Crystallography and molecular interactionsEnergetic Materials and CombustionCrystallization and Solubility Studies

Tyrosine 110 Plays a Critical Role in Regulating the Allosteric Inhibition of Campylobacter jejuni Dihydrodipicolinate Synthase by Lysine

C.J.T. Conly、Yulia V. Skovpen、Shuo Li 等 5 位作者2014-11-04Biochemistry

Dihydrodipicolinate synthase (DHDPS), an enzyme found in most bacteria and plants, controls a critical step in the biosynthesis of l-lysine and meso-diaminopimelate, necessary components for bacterial cell wall biosynthesis. DHDPS catalyzes the condensation of pyruvate and (S)-aspartate-β-semialdehyde, forming an unst…

Protein Structure and DynamicsBacterial Genetics and BiotechnologyEnzyme Structure and Function

Ruddleson-Popper phase SnO(SnTiO3)n: Lead-free layered ferroelectric materials with large spontaneous polarization

Ruizhi Zhang、Dawei Wang、Xiuhong Zhu 等 6 位作者2014-11-04Journal of Applied Physics

Perovskite phase SnTiO3 was predicted to have a large spontaneous polarization of 1.1 C/m2, but its synthesis has been unsuccessful so far. Here, we calculated the ferroelectric properties of a series of Ruddleson-Popper (RP) phase SnO(SnTiO3)n (n = 1 ∼ 6), with perovskite SnTiO3 as the ending structure (n = ∞), using…

Ferroelectric and Piezoelectric MaterialsMultiferroics and related materialsElectronic and Structural Properties of Oxides

Effect of Co Doping on Structural and Optical Properties of NiO Thin Films Prepared by Chemical Spray Pyrolysis Method

Nabeel A. Bakr、Sabah A. Salman、Ahmed M. Shano2014-11-04International Letters of Chemistry Physics and Astronomy

In this work, nickel-cobalt oxide (Ni (1-x) Co x O) thin films, where x = 0, 4, 6 and 8 % have been successfully deposited on glass substrates by chemical spray pyrolysis (CSP) technique at substrate temperature of (400 °C) and thickness of about 300 nm. The structural and optical properties of these films have been s…

Gas Sensing Nanomaterials and SensorsTransition Metal Oxide NanomaterialsCopper-based nanomaterials and applications

The Souza-Auricchio model for shape-memory alloys

Diego Grandi、Ulisse Stefanelli2014-11-04Discrete and Continuous Dynamical Systems - S

Shape-memory alloys are active materials, their amazing thermo-electromechanical behavior is at the basis of a variety of innovative applications. Many models have been set forth in order to describe this complex behavior. Among these the so-called Souza-Auricchio model appears as remarkably simple in terms of mechani…

Shape Memory Alloy TransformationsTopology Optimization in EngineeringPiezoelectric Actuators and Control

Morphology and Properties of Injection Molded Microcellular Poly(ether imide) (PEI)/Polypropylene (PP) Foams

Tao Liu、Shiyi Zhou、Yajie Lei 等 7 位作者2014-11-04Industrial & Engineering Chemistry Research

A series of PEI/PP blends were injection molded by conventional and microcellular methods. Polypropylene (PP) was selected as the disperse phase in order to improve the cell nucleation of poly(ether imide) (PEI)/PP blends. The effect of the PP content on the morphology of the PEI/PP blends or foams, the mechanical, th…

Polymer crystallization and propertiesbiodegradable polymer synthesis and propertiesPolymer Foaming and Composites

Carrier-mediated Kondo effect and Hall mobility by electrolyte gating in slightly doped anatase TiO2 films

Yin-Long Han、Zhongzhong Luo、Chengjian Li 等 9 位作者2014-11-04Physical Review B

Carrier density $({n}_{\mathrm{s}})$ is a crucial parameter that governs the properties of correlated oxides, so the field-effect approach is an ideal tool to investigate the novel physics of the system. Here, the carrier-mediated transport of slightly doped anatase ${\mathrm{TiO}}_{2}$ epitaxial films were studied by…

Semiconductor materials and devicesAdvanced Memory and Neural ComputingElectronic and Structural Properties of Oxides

Selective telomerisation of isoprene with methanol by a heterogeneous palladium resin catalyst

Laura Torrente‐Murciano、David J. Nielsen、Ralf Jackstell 等 6 位作者2014-11-04Catalysis Science & Technology

A heterogeneous (DVB-resin-PPh 3 -Pd-dvds) catalyst presents high activity for the telomerization of isoprene with methanol with an unsusual regioselectivity towards tail-to-tail telomerization products.

Organometallic Complex Synthesis and CatalysisCatalytic C–H Functionalization MethodsPolyoxometalates: Synthesis and Applications

Enhanced electrochemical properties of Sm 0.2 Ce 0.8 O 1.9 film for SOFC electrolyte fabricated by pulsed laser deposition

Xifeng Ding、Jingyu Shen、Gao Xiao-jia 等 4 位作者2014-11-04Rare Metals

Abstract The cubic fluorite structure Sm 0.2 Ce 0.8 O 1.9 (SDC) film was fabricated by pulsed laser deposition (PLD) to be used as electrolyte for solid oxide fuel cells (SOFCs). The SDC target was prepared by co‐precipitation process at a low sintering temperature (1,250 °C) with a relative density of 97 %. By insert…

Advancements in Solid Oxide Fuel CellsMagnetic and transport properties of perovskites and related materialsElectronic and Structural Properties of Oxides

Measurement of Extreme Hyperfine Fields in Two-Coordinate High-Spin Fe2+ Complexes by Mössbauer Spectroscopy: Essentially Free-Ion Magnetism in the Solid State

Aimee M. Bryan、Chun‐Yi Lin、Michio Sorai 等 10 位作者2014-11-04Inorganic Chemistry

Mössbauer studies of three two-coordinate linear high-spin Fe(2+) compounds, namely, Fe{N(SiMe3)(Dipp)}2 (1) (Dipp = C6H3-2,6-(i)Pr2), Fe(OAr')2 (2) [Ar' = C6H3-2,6-(C6H3-2,6-(i)Pr2)2], and Fe{C(SiMe3)3}2 (3), are presented. The complexes were characterized by zero- and applied-field Mössbauer spectroscopy (1-3), as w…

Magnetism in coordination complexesLanthanide and Transition Metal ComplexesAdvanced NMR Techniques and Applications

Acid-Catalyzed Condensation Reaction of Phenylsilanetriol: Unexpected Formation of cis,trans-1,3,5-Trihydroxy-1,3,5-triphenylcyclotrisiloxane as the Main Product and Its Isolation

Fujio Yagihashi、Masayasu Igarashi、Yumiko Nakajima 等 8 位作者2014-11-04Organometallics

cis,trans- 1,3,5-Trihydroxy-1,3,5-triphenylcyclotrisiloxane was successfully isolated and fully characterized by spectroscopic methods and single-crystal X-ray diffraction. This compound was believed to be highly unstable and only exist as a transient species in low concentration during the condensation reaction of ph…

Synthesis and characterization of novel inorganic/organometallic compoundsMarine Toxins and Detection MethodsSilicone and Siloxane Chemistry

Small-size metamaterial perfect absorber operating at low frequency

Son Tung Bui、Van Khuyen Bui、Van Dung Nguyen 等 7 位作者2014-11-04Advances in Natural Sciences Nanoscience and Nanotechnology

A small-size metamaterial perfect absorber operating at low frequency is proposed. Due to the special design, the unit-cell dimension with respect to wavelength is very small, a/ λ ∼ 1/17, at the absorption frequency of 377 MHz. The absorption frequency is strongly dependent on the length of zigzag wire. In addition,…

Antenna Design and AnalysisMetamaterials and Metasurfaces ApplicationsAdvanced Antenna and Metasurface Technologies

Wetting of anisotropic sinusoidal surfaces—experimental and numerical study of directional spreading

George L. Fischer、Maxence Bigerelle、K.J. Kubiak 等 6 位作者2014-11-04Surface Topography Metrology and Properties

Directional wettability, i.e. variation of wetting properties depending on the surface orientation, can be achieved by anisotropic surface texturing.A new high precision process can produce homogeneous sinusoidal surfaces (in particular parallel grooves) at the microscale, with a nano-scale residual roughness five ord…

Surface Modification and SuperhydrophobicityFluid Dynamics and Heat TransferFluid Dynamics and Thin Films

Molecular dynamics of pyrene based discotic liquid crystals confined in nanopores probed by incoherent quasielastic neutron scattering

Makha Ndao、Ronan Lefort、Carole Cerclier 等 9 位作者2014-11-04RSC Advances

Semiconducting nanowires made of discotic columnar liquid crystals can be obtained by impregnation into solid nanoporous templates, and provide new opportunities to tailor devices for organic electronics with promising charge carriers transport properties. These properties are tightly related to the self-assembly and…

Liquid Crystal Research AdvancementsPhotonic Crystals and ApplicationsBlock Copolymer Self-Assembly

Cytotoxicity and Gene Expression in Sarcoma 180 Cells in Response to Spiky Magnetoplasmonic Supraparticles

Hongjian Zhou、Sung Yong Choi、Fengming Zou 等 7 位作者2014-11-04ACS Applied Materials & Interfaces

Multifunctional nanoparticles (NPs) have been designed for a variety of cell imaging and therapeutic applications, and the study of their cellular interactions is crucial to the development of more efficient biomedical applications. Among current nanomaterials, concave core-shell NPs with complex angled geometries are…

Nanoparticle-Based Drug DeliveryNanoparticles: synthesis and applicationsGold and Silver Nanoparticles Synthesis and Applications

Field-induced slow magnetic relaxation in a hydrogen-bonding linked Co(II) 1D supramolecular coordination polymer

Yuan‐Yuan Zhu、Tingting Yin、Changwei Liu 等 8 位作者2014-11-04Supramolecular chemistry

We have investigated the dynamic behaviour of the magnetization of a hydrogen-bonding linked Co(II) 1D supramolecular coordination polymer. In the structure, two different mononuclear Co(II) species are linked by O–H···N hydrogen bonding through coordinated H2O and . Field-induced slow magnetic relaxation effect is ob…

Metal-Organic Frameworks: Synthesis and ApplicationsMagnetism in coordination complexesLanthanide and Transition Metal Complexes

Effect of Amphiphilic PCL–PEG Nano‐Micelles on HepG2 Cell Migration

Yang Shen、Mengtian Leng、Hongchi Yu 等 8 位作者2014-11-04Macromolecular Bioscience

Uptake of nanoparticles (NPs) affects cell migration but the mechanism remains poorly understood. In this study, the amphiphilic block PCL-PEG nano-micelles with well-controlled hydrophilic/hydrophobic chains were used to investigate the effect of internalized nano-micelles on cancer cell migration. Our results indica…

Nanoparticle-Based Drug DeliveryRNA Interference and Gene DeliveryDendrimers and Hyperbranched Polymers