Materials Literature
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Rifampicin-loaded poly(ε-caprolactone)-b-poly(ethylene glycol)-poly(ε-caprolactone) flower-like polymeric micelles display low aqueous physical stability over time and undergo substantial secondary aggregation. To improve their physical stability, the lyoprotection-lyophilization process was thoroughly characterized.…
Abstract Luffa cylindrica of Turkey's Aegean Region was evaluated in terms of fiber characterization and the mechanical properties of its composite with polyester. Characterization of Luffa cylindrica was carried out by Fourier transform infrared spectrophotometer, X‐ray photoelectron spectroscopy (XPS), scanning elec…
The direct synthesis of LiAlH(4) from commercially available LiH and Al powders in the presence of TiCl(3) and Me(2)O has been achieved for the first time. The effects of TiCl(3) loadings (Ti/Al = 0, 0.01, 0.05, 0.2, 0.5, 1.0 and 2.0%) and various other additives (TiCl(3)/Al(2)O(3), metallic Ti, Nb(2)O(5), and NbCl(5)…
We quantify the Kapitza thermal conductance of solid–liquid interfaces between self-assembled monolayers (SAMs) and liquid water using nonequilibrium molecular dynamics simulations. We focus on understanding how surface chemistry, nanoscale roughness, and the direction of heat flow affect interfacial thermal conductan…
Cinnamon essential oil was used in gelatin coatings to maintain the quality of refrigerated rainbow trout fillets over a period of 20 days. Fish fillets were coated with a solution of 4% gelatin incorporated with cinnamon essential oil and then stored in refrigerator (4 ± 1 °C). Coating’s preservative effect was asses…
Waterborne castor oil-based polyurethane-silica nanocomposites with the polymer matrix and silica nanoparticles chemically bonded have been successfully prepared through a sol-gel process. The formation of silica nanoparticles in water not only reinforces the resulting coatings, but also increases the crosslink densit…
This work investigates the electromechanical response of a curved piezoelectric nanobeam with the consideration of surface effects through the surface-layer-based model and the generalized Young–Laplace equations. For nanoscale piezoelectric structures, the surface effects also include surface piezoelectricity in addi…
Abstract The tensile modulus of PP/nanoclay/CaCO 3 hybrid ternary nanocomposite was analyzed using composite models. Rule of mixtures, inverse rule of mixtures, modified rule of mixtures (MROM), Guth, Paul, Counto, Hirsch, Halpin–Tsai, Takayanagi, and Kerner–Nielsen models were developed for three‐phase system contain…
Cubanisches Herz: Der rechts im Bild gezeigte Komplex (WO6 lila Polyeder, Mn orange und braun, Si grün, O rot) enthält einen gemischtvalenten {Mn5O6}-Cubankern mit Strukturähnlichkeit zum aktiven Zentrum des Photosystems II. Festkörper-, Lösungs- und Gasphasenstudien sprechen für das Vorhandensein dreier lakunärer Keg…
Three's a charm: The title compound (see picture, right, WO6 purple polyhedra, Mn orange and brown, Si green, O red) contains an embedded mixed-valence {Mn5O6} cubane core, which is structurally similar to the active site in photosystem II. Solid-, solution-, and gas-phase studies indicate the presence of three lacuna…
Plasmon modes in graphene are influenced by the unusual dispersion relation of the material. For bulk plasmons this results in a ${n}^{1/4}$ dependence of the plasma frequency on the charge density, as opposed to the ${n}^{1/2}$ dependence in two-dimensional electron gas (2DEG); yet, bulk plasmon dispersion in graphen…
Ferroelectric materials have been and still are widely used in many applications, that have moved from sonar towards breakthrough technologies such as memories or optical devices. This book is a part of a four volume collection (covering material aspects, physical effects, characterization and modeling, and applicatio…
Polyhydroxyalkanoates (PHA) synthesis genes phbC and orfZ cloned from Ralstonia eutropha H16 were transformed into beta-oxidation weakened Pseudomonas putida KTOY08ΔGC, a mutant of P. putida KT2442. The recombinant P. putida strain termed KTHH06 was able to produce a short-chain-length PHA block copolymer consisting o…
Abstract We have developed a high performance liquid crystal (LC) alignment layer of ultra‐thin single wall carbon nanotubes (SWNTs) and a conjugated block copolymer nanocomposite that is solution‐processible for conventional twisted nematic (TN) LC cells. The alignment layer is based on the non‐destructive solution d…
VO(2) films were fabricated on high-purity single-crystalline silicon substrate by the sol-gel method, followed by rapid annealing. The composition and microstructure of the films were investigated by X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), field-emission scanning electron microscopy (FE-SEM),…
Controlled tuning of the whispering gallery modes of GaN/InGaN μ-disk cavities is demonstrated. The whispering gallery mode (WGM) tuning is achieved at room temperature by immersing the μ-disks in water and irradiating with ultraviolet (UV) laser. The tuning rate can be controlled by varying the laser excitation power…
Abstract In this study, polyurethane (PU)/nano‐silica nancomposite foams were prepared. The effects of isocyanate index, cell size, density, and molecular weight of polyols on the sound absorption ratio of PU/nano‐silica foams were investigated. With increasing nano‐silica content, the sound absorption ratio of PU/nan…
Abstract Development of efficient new synthetic strategies leading to more diversified substitution patterns of porphyrin rings is of great importance as it expands the potential applicability of these compounds and provides a more accurate way of tailoring their properties for a specific application. Changes in the e…
We perform a symmetry analysis of the zero-temperature instabilities of the tetragonal phase of Ca${}_{3}$Mn${}_{2}$O${}_{7}$ and Ca${}_{3}$Ti${}_{2}$O${}_{7}$ which is stable at high temperature. We introduce order parameters to characterize each of the possible lattice distortions to construct a Landau free energy w…
Abstract Fracture of metals at the nanoscale and corresponding failure mechanisms have recently attracted considerable interest. However, quantitative in situ fracture experiments of nanoscale metals are rarely reported. Here it is shown that, under uni‐axial tensile loading, single crystalline ultrathin gold nanowire…