Materials Literature
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In this investigation, vertical zinc oxide (ZnO) nanorods were synthesized on flexible polyimide (PI) substrate by a simple aqueous method at a low temperature. The PL spectrum and X-ray diffraction (XRD) spectrum showed the ZnO nanorods had a wurtzite hexagonal phase and growth along thecaxis direction. A high photoc…
We show that successions of regions with different electrostatic potentials in graphene traversed by obliquely incident electrons can be designed to have the same transmission probability as the transmittance of optical layered structures illuminated with normally incident TE waves. This quantitative analogy holds, al…
We study the dynamics and thermodynamics of one-dimensional spin-orbital models relevant for transition-metal oxides. We show that collective spin, orbital, and combined spin-orbital excitations with infinite lifetime can exist, if the ground state of both sectors is ferromagnetic. Our main focus is the case of effect…
SUMMARY Light microscopy (LM) and scanning electron microscopy (SEM) studies of necklace‐chain forming colonial diatoms from benthic habitats in Guam revealed five species. Bleakeleya notata (Grunow in Van Heurck) Round is widespread and well‐known. Asterionella notata var. recticostata Körner has been reported only t…
Three new cluster compounds, Cs2NaAs7, Cs4ZnAs14, and Cs4CdAs14 were obtained from high temperature reactions. Their structures feature heptaarsenide [As7]3– anions, where the clusters in Cs4ZnAs14 and Cs4CdAs14 are dimerized by the linkers Zn and Cd, respectively. The bonding characteristics of these clusters are dis…
In science, the usual order is that experiments reveal something and then theorists explain it afterward, if at all. A classic example is superconductivity. It was first noticed in 1911, but it took theorists nearly 50 years to come up with an explanation, and even that explanation does not apply to every superconduct…
UNLABELLED: Using scaffolds with autologous stem cells is a golden strategy for the treatment of bone defects. In this strategy, human mesenchymal stem cells (hMSCs) have often been isolated and expanded in vitro on a plastic surface to obtain a sufficient cell number before seeding on a suitable scaffold. MATERIALS &…
Density-functional theory calculations were performed to investigate CO adsorption and oxidation on V 2 O 5 nanotubes formed by rolling V 2 O 5 (010) layers. CO adsorbs on both the inside and outside walls of V 2 O 5 nanotubes by physisorption and chemisorption modes. The bidentate carbonate can form from CO chemisorp…
Fabrication of diamond membranes, wherein photonic crystals and other nanosized optical devices can be realized, is of great importance. Many spintronic devices are based on specific optically active atomic structures in diamond, such as the nitrogen-vacancy center, and rely on the membrane's performance. One promisin…
Films of poly(carboxybetaine methacrylate), poly(CBMA), grafted onto microetched gold slides are effective in preventing nonspecific adhesion of cells of different types. The degree of adhesion resistance is comparable to that achieved with the self-assembled monolayers, SAMs, of oligo(ethylene glycol) alkanethiolates…
Abstract Atomistic classical molecular dynamics simulations have been used to investigate the water absorption behavior of polyaniline emeraldine base. Results derived from simulations, which were performed considering polymeric systems with different concentrations of water (3%, 10%, 15%, 20%, 50%, and 100% w/w), hav…
The seven isostructural complexes, [Cu(5)Ln(C(2)H(4)N(2)O(2))(5)(SO(4))(H(2)O)(6.5)](2)(SO(4))·6H(2)O, where Ln(III) = Pr, Nd, Sm, Eu, Gd, Dy and Ho, are representatives of the 15-metallacrown-5 family. Each dianion of glycinehydroxamic acid (GlyHA) links two Cu(II) cations forming a cyclic [CuGlyHA](5) frame. The Ln(…
Purpose The paper reports an investigation into the use of aqueous extracts of rice bran as a green inhibitor for corrosion of carbon steel in hydrochloric acid (HCl) solution. Design/methodology/approach Extracts from the rice bran were used as the main component of an environmentally friendly corrosion inhibitor for…
A series of hybrid Au-nanoparticle-dendrimer materials: nanoparticle-cored thiophene dendrimers (NCTDs) were synthesized, characterized, and investigated for their energy-transfer properties. These hybrid nanoparticles were obtained by the simultaneous and in situ reduction of gold(III) chloride and self-assembly of t…
Purpose The purpose of this investigation is to understand the structure of trapped intermetallics particles and localized composition changes in the anodized anodic oxide film on AA1050 aluminium substrates. Design/methodology/approach The morphology and composition of Fe‐containing intermetallic particles incorporat…
The newly discovered bacterial phosphothreonine lyases perform a post-translational modification of host cell signaling proteins through a novel catalytic mechanism that irreversibly removes the phosphate group from a phosphorylated threonine via β-elimination. This "eliminylation" reaction is shown by ab initio QM/MM…
We measured the high-temperature (up to $800$ K) resistivity of several dopings of SrFe${}_{2\ensuremath{-}x}$(Ni,Co)${}_{x}$As${}_{2}$ (Sr-122) and compared the results with similar measurements on electron-doped cuprates. We find that the Sr-122 pnictide resistivity saturates above $500$ K at around 400--700 $\mathr…
The synthesis and structural analysis (single crystal X-ray data) of two mononuclear ([Cu(L(1))(CN)]BF(4) and [Cu(L(3))(CN)](BF(4))) and three related, cyanide-bridged homodinuclear complexes ([{Cu(L(1))}(2)(CN)](BF(4))(3)·1.35 H(2)O, [{Cu(L(2))}(2)(CN)](BF(4))(3) and [{Ni(L(3))}(2)(CN)](BF(4))(3)) with a tetradentate…
We provide an in-depth study of pseudo-spectral numerical methods associated with modeling the self-assembly of molten mixed polymer brushes in the framework of self-consistent field theory (SCFT). SCFT of molten polymer brushes has proved numerically challenging in the past because of sharp features that arise in the…
The corrosion inhibition of copper–nickel alloy by Benzotriazole (BTA) in 1.5 M HCl has been investigated by weight loss and polarization techniques at different temperatures. Maximum value of inhibitor efficiency was 99.8% for BTA at 35 °C and 0.1 M inhibitor concentration, while the lower value was 86.8% at 55 °C an…