Materials Literature
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Abstract Heat curable blended methylfluorosilicone rubber (MFSR) was prepared by combination of methylsilicone rubber (MSR) and fluorosilicone rubber (FSR). 2,5‐Bis(tert‐butylperoxy)‐2,5‐dimethylhexane (DBPMH) was chosen as a curing agent. Poly(methylsiloxane‐ co ‐fluorosiloxane) with low molecular weight was used as…
The characteristics of a new ferroelectric measurement system at the European Synchrotron Radiation Facility are presented. The electric-field-induced phase transitions of Pb(Mg(1/3)Nb(2/3))O(3)-xPbTiO(3) are determined via in situ measurements of electric polarization within the synchrotron diffraction beamline. Real…
Hydrophobic surfaces have gained extensive attention in recent decades for their potential applications. The hydrophobic properties of dragonfly's ( Pantala flavescens ) wings were measured, and the water contact angles (WCAs) of the distal and basal part of a dragonfly's wing were 134.9° and 125.8°, respectively. Ima…
The production of graphene from various sources has garnered much attention in recent years with the development of methods that range from "bottom-up" to "top-down" approaches. The top-down approach often requires thermal treatment to obtain a few-layered and lowly oxygenated graphene sheets. Herein, we demonstrate t…
Magnetic resonance imaging provides important intravital information on deep tissues that cannot be visualized by other methods. Although we had previously developed an off/on switching (19)F MRI probe to monitor reporter enzyme activity on the basis of the paramagnetic relaxation enhancement effect, it was difficult…
Microporous zincophosphate sodalite crystal growth has been studied in situ by atomic force microscopy. This simple model system permits an in depth investigation of some of the axioms governing crystal growth of nanoporous framework solids in general. In particular, this work reveals the importance of considering the…
The magnetic excitations in the paramagnetic-tetragonal phase of underdoped Ba(Fe${}_{0.953}$Co${}_{0.047}$)${}_{2}$As${}_{2}$, as measured by inelastic neutron scattering, can be well described by a phenomenological model with purely diffusive spin dynamics. At low energies, the spectrum around the magnetic ordering…
Dye-sensitized solar cells have provided a model to inexpensively harness solar energy, but the underlying physics that limit their efficiency are still not well understood. We probe electron injection in sensitized nanocrystalline TiO 2 films using time-correlated single photon counting (TCSPC) to measure time-depend…
The band structure of a one-dimensional superlattice formed by patterning graphene lattice with a periodic line defect array is calculated. The lowest conduction subband of such a superlattice connects two inequivalent Dirac points with flat dispersion, which is reminiscent of the flat-bottomed subband of a zigzag-edg…
The evolution of the film thickness and plasmonic properties for sputtered deposited Au nanoparticles on SiO2 layers have been monitored in real time using in situ spectroscopic ellipsometry in the photon energy range 0.75–4.1 eV. The spectroscopic ellipsometry data were analyzed with an optical model in which the opt…
Smart bimetallic core@shell nanoparticles were fabricated based on gold nanoparticles (AuNPs) decorated with pH-sensitive polymer shell. Concretely, AuNPs having poly(4-vinylpyridine) (P4VP) on the surface were first fabricated through surface-initiated atom transfer radical polymerization (SI-ATRP). Then, they were m…
Partial discharge (PD) is usually aroused before the failure of gas-insulated switchgear (GIS) caused by insulation defects, which results in the decomposition of SF6 used as insulation gas. Concentrations of decomposition products of SF6 under different kinds of PDs are disparate. Thus, SF6 decomposition products can…
Solution rheology and electrospinning performance of an aromatic polyimide based on 3,3',4,4'-benzophenonetetracarboxylic dianhydride (BTDA) and 3,3'-dimethyl-4,4'-diaminodiphenylmethane (MMDA) was studied. Analyzing the dependence of specific viscosity on polymer concentration enabled the evaluation of the transition…
Single-molecule tracking (SMT) was used to probe the alignment of cylindrical microdomains in polystyrene–poly(ethylene oxide) diblock copolymer (PS- b -PEO) films induced by directional solvent penetration. PS- b -PEO films were supported between two glass plates. Aligned PEO domains were obtained upon horizontal pen…
Abstract Although Ni(OH) 2 is a promising electrode material for electrochemical capacitors on account of its high theoretical specific capacitance and low cost, its application has been hindered by the low measured specific capacitance and poor cycle stability often associated with low specific surface area and poor…
Manipulation of magnetism is a longstanding goal of research in exotic materials. In this work, we demonstrate that the small ferromagnetic patches in LaAlO(3)/SrTiO(3) heterostructures can be dramatically changed by in situ contact of a scanning probe. Our results provide a platform for manipulation of small magnets…
The first direct experimental evidence for the dependence on the local field enhancement with Raman/fluorescence measurements in the far field is provided. This is achieved using shell-isolated silver nanoparticles permitting recording both the surface-enhanced Raman scattering (SHINERS) and surface-enhanced fluoresce…
The principle of biodegradation has been considered for many years in the development of cardiovascular stents, especially for patients with congenital heart defects. A variety of materials have been examined with regard to their suitability for cardiovascular devices. Iron- and magnesium-based stents were investigate…
Background and aim – The non-marine diatom communities in the Antarctic Region are characterized by a typical species composition, in close relationship with their environment. Despite the growing interest, the diatom flora of James Ross Island is only poorly known. The present paper discusses the diversity of limnote…
Spherical inverse opal (IO) porous carbon was produced utilizing silica colloidal crystal spheres as templates. The spherical colloidal crystals were obtained through the self-assembly of monodisperse particles inside an emulsion droplet with confined geometry. The templates were inverted using a carbon precursor, phe…