Materials Literature
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Surface control: Vacuum deposition of a planarized PAH (C60H30) on a Pt(111) surface induces chirality caused by the different landing side of the molecule, as shown by in situ STM images. The surface determines the landing side of individual molecules, which present different structural geometries that are shifted by…
The high‐speed densification behavior of nanocrystalline 3 mol% yttria‐stabilized tetragonal zirconia polycrystal compacts during electric current‐activated/assisted sintering (ECAS) in the initial sintering stage (relative density: ρ≤0.92) was investigated. Fully dense bulk samples with an average grain size of about…
MOCVD Cobalt Oxide Deposition from Inclusion Complexes: Decomposition Mechanism, Structure, and Properties, Papadopoulos, N. D., Karayianni, H. S., Tsakiridis, P. E., Perraki, M., Sarantopoulou, E., Hristoforou, E.
The prototypical tryptophan synthases form a stable heterotetrameric αββα complex in which the constituting TrpA and TrpB1 subunits activate each other in a bidirectional manner. The hyperthermophilic archaeon Sulfolobus solfataricus does not contain a TrpB1 protein but instead two members of the phylogenetically dist…
Small lattice-mismatched (001) substrates have been used for the epitaxial growth of (0001) films using the metallorganic chemical vapor deposition method. Structure characterizations by employing X-ray diffraction and transmission electron microscope demonstrate that no MgO or Mg cluster exists throughout the films.…
One nonlinear and one linear trinuclear copper(II) complex [Cu3(dien)2(pdc)2CH3OH]2 · 6CH3OH (1) and [Cu3(pdc)2(CH3OH)6(H2O)4] (2) were prepared and characterized structurally, where dien is diethylenetriamine and pdc3− the trianion of 3,5-pyrazoledicarboxylic acid. Both complexes consist of 3,5-pyrazoledicarboxylato-…
We present general properties of surface modes in binary metal-dielectric metamaterials. We show mechanism for surface mode formation and analyze their existence conditions for semi-infinite metamaterials in the frame of couple mode theory.
A novel scheme is advanced for an excess Helmholtz free energy density functional. The present scheme is isomorphic to one frequently used mean field approximation (MFA) methodology, but goes beyond the latter in that the present scheme contains a bulk second-order direct correlation function (DCF) which can be obtain…
Abstract Porous silicon microcavity (PSiMc) structures were used as support material for specific sensing of matrix metalloproteinases (MMPs). For lower concentrations of MMP‐8, the structures were tested with two types of functionalization methods. Silanization of the oxidized porous silicon structures, followed by g…
The amorphous to crystalline phase transformation process is typically known to take place at very high temperatures and facilitated by very high compressive stresses. In this study, we demonstrate crystallization of amorphous ultra-thin platinum films at room temperature under tensile stresses. Using a micro-electro-…
Abstract This paper explores the use of boehmite as a fire retardant in low‐density polyethylene and polyamide 6. The structure and morphology of the filler are characterized by X‐ray diffraction and scanning electron microscopy. The water content of our boehmite is estimated about 30% by thermogravimetric analysis. T…
High glucose levels induce cell death in many cell types, including pancreatic β-cells. Although protective agents against glucotoxicity have been searched for extensively, so far none have been found. In this report, we tested silk fibroin (SF) as a candidate material for antiglucotoxicity in the pancreatic β-cell (H…
Protein kinase activation, via autophosphorylation of the activation loop, is a common regulatory mechanism in phosphorylation-dependent signaling cascades. Despite the prevalence of this reaction and its importance in biological regulation, the molecular mechanisms of autophosphorylation are poorly understood. In thi…
Solid oxide fuel cell (SOFC) integrated into micro gas turbine (MGT) cycle is a promising power-generation technology. This article proposes a modified output–input feedback (OIF) Elman neural network model to describe the nonlinear temperature and power dynamic properties of the SOFC/MGT hybrid system. A physics-base…
Abstract In this paper we study linearly repetitive Delone sets and prove, following the work of Bellissard, Benedetti and Gambaudo, that the hull of a linearly repetitive Delone set admits a properly nested sequence of box decompositions (tower system) with strictly positive and uniformly bounded (in size and norm) t…
Koordinierte Kontrolle: Wegen ihrer äußerst schwierigen Synthese sind Polytellurophene praktisch unerforscht. Ein neues dihalogeniertes Bitellurophen-Monomer wurde synthetisiert, und seine Polymerisation unter Palladium-katalysierten Bedingungen wurde optimiert. Die entstehenden Polytellurophene sind stabile Verbindun…
Optically stimulated luminescence (OSL) was studied in undoped and rare‐earth doped fluoride–phosphate glass. Following exposure to 90 Sr/ 90 Y β‐radiation, the samples demonstrated strong OSL in the 350–600 nm wavelength range. Here, we explore the effects of fabrication conditions and rare‐earth dopants on the OSL.…
Interfacial fibrosis is known to dramatically decrease the lifespan, stability, and function of biomedical implants and bone-anchored prosthetics. Bioactive coatings aimed at mitigating fibrous adhesions are one of the approaches to alleviate the problem. In this paper, we are developing a bioactive coating based upon…
The results of the experimental studies of effect of high pressures (12–45 GPa) and low temperatures (10–300 K) on the electrical properties of the semiconductor CuInAsSe3 are presented. The temperature and pressure ranges of noticeable changes in a behaviour of the electrical properties are established. At atmospheri…
The UvrA protein initiates the DNA damage recognition process by the bacterial nucleotide excision repair (NER) system. Recently, crystallographic structures of holo-UvrA(2) dimers from two different microorganisms have been released (Protein Data Bank entries 2r6f , 2vf7 , and 2vf8 ). However, the details of the DNA…