Materials Literature
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This paper discusses novel techniques to overcome problems arising when porting the surface acoustic wave approach of building passive radio-frequency identification and measurement systems to the electromagnetic domain without the need of mechanical (acoustical) delay lines. These techniques include the utilization o…
We report the first example of a practical and efficient template-free strategy for synthesizing ordered mesoporous NiO/poly(sodium-4-styrene sulfonate) (PSS) functionalized carbon nanotubes (FCNTs) composites by calcining a Ni(OH)2/FCNTs precursor prepared by refluxing an alkaline solution of Ni(NH3) x 2+ and FCNTs a…
ADVERTISEMENT RETURN TO ISSUEPREVCommunication to the...Communication to the EditorNEXTe-Micellization: Electrochemical, Reversible Switching of Polymer AggregationFelix A. Plamper*†‡, Lasse Murtomäki⊥, Andreas Walther§, Kyösti Kontturi⊥, and Heikki Tenhu†View Author Information† Laboratory of Polymer Chemistry, A.I.…
Abstract We synthesized π-stacked polymers by incorporating [2.2]paracyclophane units into conjugated polymer backbones and developed corresponding through-space-conjugated polymers and aromatic-ring-layered polymers. We also synthesized [2.2]paracyclophane-containing polyamidoamine (PAMAM) dendrimers and optically ac…
There is a major challenge in maintaining functional hepatocytes in vivo as these cells rapidly lose their metabolic properties in culture. In this work we have developed a bioengineered platform that replaces the use of the collagen I--in the traditional culture sandwich technique--by a defined extracellular matrix a…
We report the growth of high-quality In2O3(111) thin films on Y-ZrO2(111) by oxygen plasma-assisted molecular beam epitaxy. Ordered epitaxial growth was confirmed by X-ray diffraction and high-resolution transmission electron microscopy. Combined surface analysis techniques showed that the films exhibit atomically fla…
A shape memory composite (SMC) was fabricated with a shape memory alloy (SMA) and a shape memory polymer (SMP), and its two-way bending deformation and recovery force were investigated. The results obtained can be summarized as follows: (1) two kinds of SMA tapes which show the shape memory effect (SME) and superelast…
The temperature and frequency dependences of dielectric properties of barium strontium titanate [Ba0.85Sr0.15TiO3 (BST15)] ceramics have been investigated. The dielectric relaxation behavior above 180 °C was observed in BST15 ceramics with broad dielectric peaks. The contribution of dc conduction and universal dielect…
Carbon nanotubes (CNTs), the most promising material with unique characteristics, find its application in different fields ranging from composite materials to medicine and from electronics to energy storage. However, little is known about the mechanism behind the interaction of these particles with cells and their tox…
We have developed an effective-medium theory within the coherent-potential approximation, which is especially suitable to retrieve the effective constitutive parameters (permittivity and permeability) of the anisotropic magnetic metamaterials consisting of the ferrite rods. The anisotropy originates from the gyromagne…
Hydrolytically degradable polymer brushes would represent an interesting platform for the development of functional coatings for various biomaterials applications. In this manuscript, the surface-initiated atom transfer radical copolymerization of 5,6-benzo-2-methylene-1,3-dioxepane (BMDO) and poly(ethylene glycol) me…
Abstract Silver (II) oxide layers (AgO) were prepared by anodic oxidation of pre‐oxidized, Ag 2 O‐covered silver electrodes in 1 M NaOH (pH 13.8). The oxidized electrodes were investigated using a combination of electrochemical techniques, ex situ X‐ray photoelectron spectroscopy (XPS) and in situ surface‐sensitive gr…
The possible periodic arrangements of droplets bouncing on the surface of a vibrated liquid are investigated. Because of the nature of the interaction through waves, the possible distance of binding of nearest neighbors is multi-valued. For large amplitude of the forcing, the bouncing becomes sub-harmonic and the drop…
Abstract We have characterized 6H‐SiC substrates with tip‐enhanced Raman spectroscopy in a broad spectral range between 100 and 3000 cm −1 . A few adlayers of graphene previously grown on the semiconductor's C surface enabled us to approach the Au tip of a scanning tunneling microscope (STM) into tunnelling contact. I…
A series of hierarchical nanostructured/porous titania materials doped with different contents of cerium (Ce/TiO 2 ) were synthesized by utilizing the oil-in-water (O/W) emulsion technique. N 2 sorption, scanning electron microscopy (SEM), and transmission electron microscopy (TEM) analysis confirm that the synthesize…
Multiferroic (Bi0.90La0.10)(Fe0.95Mn0.05)O3 (BLFMO) thin films were deposited on SrRuO3 (SRO) buffered Pt/TiO2/SiO2/Si(100) substrates with variable buffer layer thicknesses by using off-axis radio frequency sputtering. The orientation of BLFMO thin films is dependent on the SRO buffer layer thickness, which leads to…
The second-order elastic constants for cyclotetramethylene tetranitramine (β-HMX) single crystals were determined using the impulsive stimulated thermal scattering (ISTS) method. Despite the low symmetry of these crystals, the complete set of 13 elastic constants were determined accurately from acoustic velocity measu…
The variations in emission intensities of AlO4-tetrahedron-containing compound BaMgAl10O17:Eu (BAM) phosphor prepared in different atmospheres is discussed in view of the structure of host compounds. A reduction phenomenon of Eu3+→Eu2+ was observed by emission and excitation spectra measurement in BAM for the first ti…
The construction of functionalized poly(3,4-ethylenedioxythiophene) (PEDOT) nanowire devices for label-free protein detection is reported. Direct growth/assembly of PEDOT nanowires with carboxylic acid side-chain functional groups (poly(EDOT-COOH)) across the electrode junction is achieved by using an electric-field-a…
Abstract An electrochemical study of SOFC cathode degradation, due to poisoning by chromium oxide vapours, was performed applying 3‐electrode set‐ups. The cathode materials comprised LSM/YSZ and LSCF/CGO composites, whereas the electrolyte material was 8YSZ. The degradation of the cathode performance was investigated…