Materials Literature
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Abstract Pyrrolyl‐capped poly( N ‐isopropylacrylamide) macromonomers (Py‐PNIPAM) were prepared through reversible addition‐fragmentation‐transfer polymerization with benzyl 1‐pyrrolylcarbodithioate as chain‐transfer agent. Polymerizations of Py‐PNIPAM with/without pyrrole using AgNO 3 as oxidizing agent and dimethylfo…
We present a method to increase the second-harmonic generation (SHG) by an antiferromagnetic (AF) film for a fixed input power. This film is put between two different dielectrics, and an obliquely incident electromagnetic wave is used to generate the second-harmonic (SH) waves. This method can be considered as an exte…
Theories for magnetoelectric (ME) effects in a bilayer consisting of magnetostrictive film on piezoelectric substrate are discussed. The ME coupling at low frequencies and at mechanical resonance due to acoustic modes have been estimated and applied to the specific case of a thin film of permendur or nickel ferrite on…
A simple synthetic strategy has been implemented to obtain low‐temperature sintered fine grain size gadolinia‐doped ceria, Ce 0.9 Gd 0.1 O 1.95 , (CGO) electrolyte pellets with a high density using weakly agglomerated particles of calcined nanopowders synthesized by a homogeneous precipitation process. The precipitant…
The structure of Ga(2)O(3)(ZnO)(6) was determined using single-crystal X-ray diffraction techniques in the space group Cmcm. The metal ion sublattice resembles some of the Zn ions in the wurtzite ZnO structure. The oxygen ion sublattice in Ga(2)O(3)(ZnO)(6) also resembles some of the O ions in ZnO. Structural relation…
The crystallization kinetics of a solid oxide fuel cell sealing glass were studied using a new isothermal differential thermal analysis (DTA) method. The weight fraction of glass crystallized after an isothermal heat treatment was determined from the DTA crystallization peak area and the crystallization kinetic parame…
Vascular disrupting agents (VDAs) are able to affect selectively tumour endothelial cell morphology resulting in vessel occlusion and widespread tumour cell necrosis. However, single-agent antitumour activity of VDAs is typically limited, as tumour regrowth occurs rapidly following drug treatment. To improve the thera…
Polyhydroxyalkanoate (PHA) synthase from Pseudomonas sp 61-3 (PhaC1(Ps)) is able to synthesize P(3HB-co-3HA), consisting of a 3HB unit and medium-chain-length 3HA units of 6-12 carbon atoms. Expression vectors encoding 76 PhaC1(Ps) mutants with an amino acid replacement at position 130, 325, 477 or 481 were individual…
This study investigates the formation of linear polymer grafts using thiol-acrylate conjugate addition reactions on nanoparticle surfaces. Silica nanoparticles were first modified with an amine functionality, followed by the attachment of a photocleavable acrylate. Dithiol-diacrylate films were attached to the particl…
Lithium nitrate has been used to prevent and to mediate the expansion caused by alkali‐silica reaction (ASR). However, there is limited information on how it affects the existing reaction products caused by ASR. The aim of the present work is to determine the modifications caused by the LiNO 3 treatment on the structu…
We have investigated anisotropic physical properties (magnetic susceptibility, electrical resistivity, thermoelectric power, Hall coefficient, and thermal conductivity) of Y-Al-Ni-Co decagonal approximant with composition ${\text{Al}}_{76}{\text{Co}}_{22}{\text{Ni}}_{2}$. The crystalline-direction-dependent measuremen…
In the presence of the charged impurities, we study the weak localization effect by evaluating the quantum interference correction to the conductivity of Dirac fermions in graphene. With the inelastic scattering rate due to electron-electron interactions obtained from our previous work, we investigate the dependence o…
Abstract Wasserstoffperoxid wird heutzutage durch einen indirekten Prozess produziert, der auf der sequenziellen Hydrierung und Oxidation eines Alkylanthrachinons beruht. Auf diese Weise werden der Wasserstoff und Sauerstoff während des Produktionsprozesses voneinander getrennt gehalten. Ein Prozess, in dem molekulare…
Cooking in a small pot: Uniform zeolite particles (see picture) can be prepared in high yield by hydrothermal syntheses within the confinement of inverse-opal carbon reactors. The product morphology depends on interfacial interactions at the reactor walls and on other parameters that can be engineered into the reactor…
Coarse-grained (CG) modeling has emerged as a promising tool to bridge the gap between the temporal and spatial scales of all-atom (AA) simulations and those of many important biological processes. Resolution exchange, a variant of the replica exchange method, combines the efficiency of CG simulation and the accuracy…
The approach of designing cloaks with arbitrary shapes was investigated. The coordinate transformation was considered as a homeomorphous topological mapping and the related geometrical description was proposed by introducing position surfaces and tracing lines. Then an approximation approach was presented, which consi…
Spider dragline silk is primarily composed of proteins called major ampullate spidroins (MaSps) that consist of a large repeat array flanked by nonrepetitive N- and C-terminal domains. Until recently, there has been little evidence for more than one gene encoding each of the two major spidroin silk proteins, MaSp1 and…
High-resolution transmission electron microscopy and electron energy loss spectroscopy (EELS) were performed on electrochemically anodized niobium and niobium oxide. Sintered anodes of Nb and NbO powders were anodized in 0.1 wt% H3PO4 at 10, 20, and 65 V to form surface Nb2O5 layers with an average anodization constan…
Two-photon absorption associated with excited exciton states is theoretically studied in semiconducting carbon nanotubes within an effective-mass approximation. Sharp absorption peaks appear at energies of the second and fourth lowest exciton states below the interband continuum. The binding energy of the second lowes…
A series of Polynesian pearls has been investigated with particular attention to the structural and compositional patterns of the early developmental stages of the pearl layer. These initial steps in pearl formation bear witness of the metabolic changes that have occurred during the pearl-sac formation. The resulting…