Materials Literature
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Synthesis, Characterization and Properties of Zirconium Oxide (ZrO2)-Doped Titanium Oxide (TiO2) Thin Films Obtained via Sol-Gel Process
We show that the spin-density wave state on the partially filled honeycomb and triangular lattices is preempted by a paramagnetic phase that breaks an emergent ${Z}_{4}$ symmetry of the system associated with the four inequivalent arrangements of spins in the quadrupled unit cell. Unlike other emergent paramagnetic ph…
Abstract The incorporation of 2‐hydroxyethyl phosphate (2‐HEP) into layered double hydroxide (LDH) galleries results in the formation of new organic–inorganic hybrid assemblies, subsequently studied as a functionalized filler with regards to their corrosion inhibition as an epoxy‐based polymer primer coating of alumin…
OBJECTIVES: Technologies to increase tissue vascularity are critically important to the fields of tissue engineering and cardiovascular medicine. Angiogenic factors, like VEGF, have been widely investigated to induce vascular endothelial cell proliferation and angiogenesis for establishing a vascular network. However,…
Functional polymers have a wide variety of applications ranging from energy storage to drug delivery. For energy storage applications, desirable material properties include low cost, high charge storage and/or mobility, and low rates of degradation. Isotropic thin films have been used for many of these types of applic…
Chemically self-assembled antibody nanorings (CSANs) displaying multiple copies of single-chain variable fragments can be prepared from dihydrofolate reductase (DHFR) fusion proteins and bis-methotrexate (bisMTX). We have designed and synthesized a bisMTX chemical dimerizer (bisMTX-NH(2)) that contains a third linker…
The aim of this study was to synthesize the carbon-based nanomaterials and determine their hydrogen storage capacities. Carbon nanotubes (CNTs) were first synthesized by chemical vapor deposition (CVD) of acetylene (C2H2) on a magnesium oxide (MgO) powder impregnated with an iron nitrate (Fe(NO3)3·9H2O) solution. The…
Nanocomposite foams based on ethylene vinyl acetate (EVA) copolymer had been prepared by melt blending EVA with the addition of organically modified montmorillonite (OMMT). The clay interlayer spacing was characterized by x-ray diffraction (XRD). The morphology of the foamed samples was studied using transmission elec…
The conversion of methane to value-added liquid chemicals is a promising answer to the imminent demand for fuels and chemical synthesis materials in the advent of a dwindling petroleum supply. Current technology requires high energy input for the synthesis gas production, and is characterized by low overall selectivit…
The miscibility of Hydroxypropyl cellulose (HPC)/poly(ethylene glycol) (PEG) blends over an extended range of concentrations in water. The viscosity, ultrasonic velocity, and refractive index of the above blend solutions have been measured at 30°C. The interaction parameters such as and μ proposed by Chee and α propos…
The dephasing of PbS quantum dots has been carefully measured using three pulse four-wave mixing and two-dimensional nonlinear optical spectroscopy. The temperature dependence of the homogeneous linewidth obtained from the two-dimensional spectra indicates significant scattering by acoustic phonons, whereas the excita…
A comparative study was performed in this work to investigate the crystal structure, thermal behavior, melting behavior, overall isothermal melt crystallization kinetics, and spherulitic morphology of biodegradable neat poly(ethylene adipate) (PEA) and its novel copolyester poly(ethylene adipate- co -5 mol % ethylene…
Monodispersed spherical particles are potentially available for various applications as building blocks for photonic crystals, chromatography stationary phase, and drug support for controlled release. Immobilization of a molecular recognizable unit to the surface of the spherical particles is important in such applica…
The magnetocaloric effect (MCE) in one-dimensional (1D) magnetic nanostructures is optimized for a specific value of the magnetic field ${H}^{*}$ when applied perpendicularly to the longitudinal direction of the system. Our results reveal that ${H}^{*}$ corresponds to the saturation field, slightly above the transitio…
Diatoms inhabiting intertidal flats are subject to strongly changing salinities due to exposure to rain and desiccation at low tide. In order to determine the physiological responses of marine benthic diatoms to salinity changes, cultures of Navicula phyllepta, Achnanthes delicatula subsp. hauckiana and Nitzschia cons…
) has been demonstrated to be an effective biocidal agent against prokaryotic microbes found in water. Transmission electron microscopy and electron energy loss spectroscopy indicated cellular damage after co-incubation with the nanocomposite, showing concomitant leakage of ions, which are critical for cell survival.
In this study, we developed oral in situ gelling formulations composed of pluronic (Plu) and polyacrylic acid (PAA) for the delivery of an anticancer drug, epirubicin (Epi). We investigated various Plu/PAA/Epi formulations for their physicochemical properties and in vitro permeation and accumulation, as well as for in…
International audience
We develop a model of cross-slip in face-centered cubic (fcc) metals based on an extension of the Peierls-Nabarro representation of the dislocation core. The dissociated core is described by a group of parametric fractional Volterra dislocations, subject to their mutual elastic interaction and a lattice-restoring forc…
Discrimination between active and spectator species is an important and demanding task in catalysis research. A comparative study of the Pd-catalyzed CO hydrogenation using in situ diffuse reflectance IR Fourier transform spectroscopy (DRIFTS) in steady-state and dynamic (transient) experiments shows that the informat…