Materials Literature
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A computational model based on the phase field method is developed to investigate the morphological evolution of a thin solid film undergoing concurrent spinodal decomposition and surface roughening. It is found that there is a strong link between developing two-phase microstructures, surface roughness, and film break…
We numerically investigate the optical field enhancement based on gap surface plasmon polaritons (GSPPs) that are enhanced by propagating surface waves launched by a circular slit at a metal-dielectric interface. The optical field enhancement originates not only from multiple scattering and coupling of GSPPs in the sp…
Photoreduction of samarium-doped BaCl(2)-modified aluminofluoride glass by femtosecond laser irradiation and x-ray irradiation were investigated. Photoluminescence of samarium ions indicated that photoreduction of Sm(3+)→Sm(2+) efficiently occurred in glass samples containing more than 5 mol.% BaCl(2) after femtosecon…
We have grown m-plane InxGa1−xN (x = 0.24-0.43) commensurately on m-plane ZnO by the use of a low temperature epitaxial growth technique and investigated its optical properties. We found that the critical thickness for strain relaxation in the InGaN films prepared by the present technique is at least one order of magn…
Inspired by morphogenesis in biology, we present a strategy for developing functional 3D materials with the capacity to morph based on environmental cues. We utilized local mechanical stresses to cause global shape changes in colloidosomes. Colloidosomes were assembled from pH-sensitive calcium alginate particles (CAP…
Abstract Non‐ and core‐shell nanoparticles‐containing polyurethane‐based powder coating systems, crosslinked with allophanate bonds containing polyisocyanates were examined. The surface structure of the powder coatings were investigated with a confocal microscopy and polarized optical microscopy (POM) using reflected…
Three lanostane-type triterpenoids [lanosta-7,9(11),24-trien-3-one 15,26-dihydroxy, lanosta-7,9(11),24trien-26-oic,3-hydroxy and ganoderic acid y], four steroids[ (22E,24R)-ergosta-7,22-dien-3β,5 α.6 β-triol, 5α,8 α-epidiory (22E,24R-ergosta-6,22-dien-3β-ol, ergosta-5,7,22-trien-3β-ol,7 (ergosterol) and ergosta7,22-di…
The liquid structure of Al–Si hypoeutectic binary alloys was characterized by diffraction experiments using a high-energy X-ray (synchrotron) beam source. The diffraction experiments were carried out for liquid pure Al, Al–3 wt% Si, Al–7 wt% Si, Al–10 wt% Si and Al–12.5 wt% Si alloys at several temperatures. The salie…
The electrical transport properties were investigated of a glass system of basic composition 50 mol. % Pb3O4–50 mol. % P2O5 containing CoO, Cr2O3 or V2O5 dopanys. The ac conductivity and the thermoelectric power were measured as a function of temperature. Properties such as dielectric constant, loss factor tangent and…
Electrospun type I collagen fibers are very promising materials for tissue scaffold applications, but are typically fabricated from toxic solvents. Recently, electrospinning of type I collagen fibers by using environmentally friendly phosphate buffer saline (PBS)/ethanol solution has been explored. PBS/ethanol solvent…
Precipitation of magnesium silicate from sodium silicate and MgCl2 and MgSO4 solutions was investigated at four different reactant feed rates and two temperatures (25 °C and 50 °C). Sodium silicate solutions were produced from rice hull ash silica. The final product was characterized by scanning electron microscopy, X…
By using a generic coarse grained polypeptide model, we perform multicanonical molecular dynamics simulations for determining the equilibrium conformation state diagram of a single homopolypeptide chain as a function of the chain length and temperature. The state diagram highlights the thermal regimes of stability for…
Metallic clusters containing 2, 8, 18, and 20 electrons are now known to exhibit enhanced stability that can be reconciled because of filled 1S, 1P, 1D, and 2S electronic shells within a simplified confined nearly free electron (NFE) gas. Here, we present first-principles studies on three isovalent clusters, i.e., ZnM…
Nanocomposite samples containing various molar compositions of tin and titanium oxides were synthesized by a sol–gel method using octadecylamine as controlling template agent. The structural and the crystalline features of the samples were investigated with Fourier Transformer Infra-red, X-ray diffraction, Transmissio…
We construct spectral triples for compact metric spaces (X, d). This provides us with a new metric d̄s on X. We study its relation with the original metric d. When X is a subshift space, or a discrete tiling space, and d satisfies certain bounds, we advocate that the property of d̄s and d to be Lipschitz equivalent is…
The improved light trapping caused by incorporation of plasmonic nanoparticles makes it possible to significantly increase the performance of thin-film silicon solar cells. To investigate stability of this enhancement, a systematic study on random distribution of the nanoparticles is performed. Based on predictive num…
Abstract Immobilized Cu2+ ions affinity cellophane membranes for affinity separation of His‐tag Chitinase were prepared. Cellophane membranes were first grafted with polymethacrylic acid, and the impacts of various grafting conditions on grafting process parameters were evaluated. Fourier transform infrared analysis a…
AIMS: The objective of the present study was to evaluate drug efflux transporter interactions of darifenacin and examine the impact of such transporter interactions on darifenacin permeability in an in vitro model of the blood-brain barrier (BBB) and blood-ocular barrier (BOB). METHODS: Cell membranes expressing human…
Abstract Microcapsules containing phase change materials (microPCMs) can be filled in polymeric matrix forming smart temperature‐controlling composites. The aim of this study was to investigate the relationship between the interface behaviors and the mechanical properties of methanol‐melamine‐formaldehyde shell microP…
ABSTRACT The use of focussed ion beam milling combined with high resolution scanning electron microscopy analysis as a characterisation tool for thin‐film photovoltaics is reported. CdTe solar cell cross sections are examined in high detail with as‐grown and CdCl2‐treated devices being compared. Observed changes in mi…