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Control of the Spin Dynamics of Single‐Molecule Magnets by using a Quasi One‐Dimensional Arrangement

Keiichi Katoh、Satoshi Yamashita、Nobuhiro Yasuda 等 7 位作者2018-04-17Angewandte Chemie

Abstract Magnetic dipole interactions are dominate in quasi one‐dimensional (1D) molecular magnetic materials, in which TbNcPc units (Tb 3+ =terbium(III) ion, Nc 2− =naphthalocyaninato, Pc 2− =phthalocyaninato) adopt a structure similar to TbPc 2 single‐molecule magnets (SMMs). The magnetic properties of the [TbNcPc]…

Magnetism in coordination complexesLanthanide and Transition Metal ComplexesOrganic and Molecular Conductors Research

Ba doped Fe3O4 nanocrystals: Magnetic field and temperature tuning dielectric and electrical transport

Papia Dutta、S. K. Mandal、A. Nath2018-04-17Materials Research Express

Nanocrystalline BaFe 2 O 4 has been prepared through low temperature pyrophoric reaction method. The structural, dielectric and electrical transport properties of BaFe 2 O 4 are investigated in detail. AC electrical properties have been studied over the wide range of frequencies with applied dc magnetic fields and tem…

Multiferroics and related materialsMagnetic Properties and Synthesis of FerritesElectromagnetic wave absorption materials

Molecular dynamics study of tridymite

Akira Takada、Kathryn J. Glaser、Robert G. Bell 等 4 位作者2018-04-17IUCrJ

Structural changes in tridymite have been investigated by molecular dynamics simulation. Two thermal processes were carried out, one cooling from the high-temperature hexagonal structure of tridymite (HP-tridymite) and the other heating from the low-temperature monoclinic structure of tridymite (MX1-tridymite). The fo…

High-pressure geophysics and materialsMaterial Dynamics and PropertiesGlass properties and applications

High efficiency toughness of aromatic sulfonamide in polyamide 6

Zhenyu Jia、Ziqing Cai、Jianwen Chen 等 7 位作者2018-04-17Journal of Applied Polymer Science

ABSTRACT In order to overcome the brittle fracture characteristics of polyamides, the study on high efficiency toughening of polyamides is always a hot topic. In this article, n ‐ethyl‐ p ‐toluene sulfonamide (N‐PTSA) was used as the toughening agent in polyamide 6 (PA6) matrix. The PA6/N‐PTSA composites were prepared…

Polymer crystallization and propertiesPolymer Nanocomposites and PropertiesSynthesis and properties of polymers

Electron Scattering from Disordered Grain Boundaries in Degenerate Polycrystalline Al‐Doped ZnO Thin Films

Tadatsugu Minami、Toshihiro Miyata、Hiroki Tokunaga2018-04-17physica status solidi (a)

This paper describes the influence of electron scattering from disordered grain boundaries on the carrier transport in polycrystalline Al‐doped ZnO (AZO) thin films prepared with electron concentrations on the order of 10 20 cm −3 . It is found that in degenerate AZO thin films prepared on glass substrates by various…

ZnO doping and propertiesSemiconductor materials and devicesThin-Film Transistor Technologies

A Balance between van der Waals and Cation–π Interactions Stabilizes Hydrophobic Assemblies

Yi‐Yang Zhan、Tatsuo Kojima、Takuya Koide 等 5 位作者2018-04-17Chemistry - A European Journal

A thermally highly stable molecular self-assembly (nanocube) in water, the decomposition temperature of which is 415 K, was developed by designing a gear-shaped amphiphile (GSA) with an indented hydrophobic surface, even though the nanocube is stabilized only by van der Waals (vdW) and cation-π interactions as well as…

Supramolecular Chemistry and ComplexesCrystallography and molecular interactionsSupramolecular Self-Assembly in Materials

Surface modification of highly porous 3D networks via atmospheric plasma treatment

Daria Smazna、Shree Sindu、M. Hoppe 等 10 位作者2018-04-17Contributions to Plasma Physics

Tetrapodal ZnO (T‐ZnO) and aerographite networks represent two highly open porous (94.6 and 99.96%, respectively) model materials on which the impact of an atmospheric‐pressure plasma was studied for the first time. The air plasma treatment by a surface barrier discharge caused remarkable surface modifications on the…

Graphene research and applicationsZnO doping and propertiesSurface Modification and Superhydrophobicity

Wrapping Nanocellulose Nets around Graphene Oxide Sheets

Rui Xiong、Ho Shin Kim、Lijuan Zhang 等 7 位作者2018-04-17Angewandte Chemie

Abstract Constructing advanced functional nanomaterials with pre‐designed organized morphologies from low‐dimension synthetic and biological components is challenging. Herein, we report an efficient and universal amphiphilicity‐driven assembly strategy to construct “hairy” flexible hybrid nanosheets with a 1D cellulos…

Advanced Cellulose Research StudiesElectrospun Nanofibers in Biomedical ApplicationsAdvanced Materials and Mechanics

Dinuclear Dy2 Single‐Molecule Magnets: Functional Modulation on the Bridging Ligand and Different Relaxation Performances within the Single‐Crystal to Single‐Crystal System

Wan‐Ying Zhang、Peng Chen、Hongfeng Li 等 6 位作者2018-04-17Chemistry - An Asian Journal

Abstract Crystal structures, single‐molecule magnetic behavior, and ab initio calculations of four new phenoxo‐bridged dinuclear dysprosium complexes and their gadolinium(III) analogues are explored. Complexes [Dy 2 (DMOMP) 2 (DBM) 4 ] 2 ⋅ CHCl 3 ( 1 ; DMOMP=1‐methyl‐3,5‐dimethoxy‐4‐hydroxybenzene, DBM=1,3‐diphenylpro…

Magnetism in coordination complexesLanthanide and Transition Metal ComplexesElectron Spin Resonance Studies

Effect of polyaniline‐coated carbon nanotube and nanosilver hybrid nanoparticles on the dielectric properties of poly(methyl methacrylate) nanocomposites

Satyabhama Sahu、Amrita Pritam Sahoo、Lipsa Shubhadarshinee 等 5 位作者2018-04-17Polymer Composites

The polyaniline (PANI)‐coated functionalized multi‐walled carbon nanotubes (f‐CNTs) and silver nanoparticles (AgNPs) (PANI@f‐CNTs and PANI@AgNPs hybrid nanofillers) are synthesized by means of in situ polymerization of aniline monomer on the surface of f‐CNTs and AgNPs. The PANI@f‐CNTs and PANI@AgNPs hybrid nanofiller…

Conducting polymers and applicationsDielectric materials and actuatorsPolymer Nanocomposite Synthesis and Irradiation

Diarylamine‐Fused Subporphyrins: Proof of Twisted Intramolecular Charge Transfer (TICT) Mechanism

Koki Kise、Yongseok Hong、Norihito Fukui 等 6 位作者2018-04-17Chemistry - A European Journal

Abstract Diarylamine‐fused subporphyrins 1 a and 1 b were synthesized from β,β‐diiodo‐ meso ‐chloro subporphyrin 2 through a one‐pot procedure involving nucleophilic aromatic substitution and S RN 1‐type intramolecular fusion reaction as the first example of meso ‐nitrogen‐embedded subporphyrin. While non‐fused counte…

Porphyrin and Phthalocyanine ChemistryLuminescence and Fluorescent MaterialsMetal-Catalyzed Oxygenation Mechanisms

Evaluating size‐dependent relaxivity of PEGylated‐USPIOs to develop gadolinium‐free T1 contrast agents for vascular imaging

Amit P. Khandhar、Gregory J. Wilson、Michael G. Kaul 等 6 位作者2018-04-17Journal of Biomedical Materials Research Part A

Abstract Ultra‐small superparamagnetic iron oxide (USPIO) nanoparticles provide a safer alternative to gadolinium‐based contrast agents (GBCAs) in T1‐weighted MR imaging. MRI contrast behavior of USPIOs depends on their magnetic properties, which in turn depend on their physicochemical composition. Identifying and tai…

Advanced MRI Techniques and ApplicationsLanthanide and Transition Metal ComplexesMRI in cancer diagnosis

Dicarboxylate Ligands Oriented Assembly of {Ti3(μ3-O)} Units: From Dimer to Coordination Triangles and Rectangles

Mei‐Yan Gao、Xi Fan、Lei Zhang 等 4 位作者2018-04-17Inorganic Chemistry

A series of dicarboxylates bridged titanium-oxo clusters with {Ti 3 (μ 3 -O)} building units have been synthesized through facile one-step solvothermal reactions. It is interesting to find that the geometric characteristics of the obtained supramolecular structures highly depend on the configuration of the applied dic…

Metal-Organic Frameworks: Synthesis and ApplicationsPolyoxometalates: Synthesis and ApplicationsChemical Synthesis and Characterization

Iron(III) Coordinated Polymeric Nanomaterial: A Next-Generation Theranostic Agent for High-Resolution T1-Weighted Magnetic Resonance Imaging and Anticancer Drug Delivery

Diptendu Patra、Saikat Mukherjee、Ipsita Chakraborty 等 7 位作者2018-04-17ACS Biomaterials Science & Engineering

Theranostic-based nanomedicine plays a crucial role in the field of cancer therapy. This is due to having the capability to combine both therapy and diagnosis together in a single system. Herein a new class of metal–ligand-based nanocarrier in a norbornene backbone has been designed as a theranostic system. Fe 3+ -ter…

Nanoparticle-Based Drug DeliveryNanoplatforms for cancer theranosticsLanthanide and Transition Metal Complexes

Fabrication of nanocellulose loaded poly(AA‐co‐HEMA) hydrogels for ceftriaxone controlled delivery and crystal violet adsorption

Soleyman Hosseinzadeh、Hossein Hosseinzadeh、Shahryar Pashaei2018-04-17Polymer Composites

Superabsorbent polymer nanocomposites (SAPCs) are very promising and versatile materials for biomedical applications. In this research work, we focused on a novel nanocellulose‐based SAPC, poly(acrylic acid‐ co ‐2‐hyderoxy ethyl methacrylate)‐grafted cellulose nanocrystal (CNC) composite, P(AA‐ co ‐HEMA)‐ g ‐CNC as a…

Hydrogels: synthesis, properties, applicationsAdvanced Cellulose Research StudiesPickering emulsions and particle stabilization

A New Discharge Pattern for the Characterization and Identification of Insulation Defects in GIS

Rui Yao、Meng Hui、Jun Li 等 5 位作者2018-04-17Energies

Identification of insulation defects in gas insulated metal-enclosed switchgear (GIS) is important for partial discharge (PD) evaluation. This article proposes a polar coordinate pattern approach to characterize the different kinds of defect types. These defect types include floating electrodes, a fixed protrusion on…

High voltage insulation and dielectric phenomenaPower Transformer Diagnostics and InsulationInfrastructure Maintenance and Monitoring

Zero Thermal Expansion and Abrupt Amorphization on Compression in Anion Excess ReO3-Type Cubic YbZrF7

John O. Ticknor、Brett R. Hester、Joshua W. Adkins 等 6 位作者2018-04-17Chemistry of Materials

Heat treatment of cubic YbZrF 7, after quenching from 1000 °C, leads to a material displaying precisely zero thermal expansion at ∼300 K and negative thermal expansion at lower temperatures. The zero thermal expansion is associated with a minimum in the lattice constant at ∼300 K. X-ray total scattering measurements a…

Microwave Dielectric Ceramics SynthesisThermal Expansion and Ionic ConductivityThermodynamic and Structural Properties of Metals and Alloys

Theoretical Perspectives on the Influence of Solution-Phase Additives in Shape-Controlled Nanocrystal Synthesis

Xin Qi、Tonnam Balankura、Kristen A. Fichthorn2018-04-17The Journal of Physical Chemistry C

Shape-selective solution-phase nanocrystal growth is facilitated by capping agents, or structure-directing agents (SDAs), which guide shape evolution. It is often stated that these chemical additives impart shape selectivity by promoting nanocrystals with a majority of facets to which they bind most strongly. However,…

Gold and Silver Nanoparticles Synthesis and ApplicationsCopper-based nanomaterials and applicationsnanoparticles nucleation surface interactions

Synthesis and evaluation of water soluble pH sensitive poly (vinyl alcohol)-doxorubicin conjugates

Nahla Rahoui、Bo Jiang、Nadia Taloub 等 5 位作者2018-04-17Journal of Biomaterials Science Polymer Edition

The accuracy of spatiotemporal control cargo delivery and release are primordial to enhance the therapeutic efficiency and decrease the undesirable effects, in this context a novel prodrug were developed based on biocompatible polyvinyl alcohol (PVA) substrate. PVA was conjugated to doxorubicin (PVA-DOX) via an acid-l…

Nanoparticle-Based Drug DeliveryElectrospun Nanofibers in Biomedical ApplicationsPolymer Nanocomposite Synthesis and Irradiation

Synthesis and luminescence properties of single‐component Ca 5 ( PO 4 ) 3 F:Dy 3+ , Eu 3+ white‐emitting phosphors

Yu Meng、Wentao Zhang、Shiyu Qin 等 5 位作者2018-04-17Journal of the American Ceramic Society

Abstract A series of Ca 5 ( PO 4 ) 3 F:Dy 3+ , Eu 3+ phosphors was synthesized by a solid‐state reaction method. The XRD results show that all as‐prepared Ca 5 ( PO 4 ) 3 F:Dy 3+ , Eu 3+ samples match well with the standard Ca 5 ( PO 4 ) 3 F structure and the doped Dy 3+ and Eu 3+ ions have no effect on the crystal st…

Luminescence Properties of Advanced MaterialsRadiation Detection and Scintillator TechnologiesMicrowave Dielectric Ceramics Synthesis