Materials Literature
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Calixarenes have been shown to induce mesocrystal formation of barium sulfate, despite being relatively low molecular weight additives. Scanning probe microscopy has shown that a possible mechanism is the self-assembling properties of the calixarene resulting in steric stabilization of the nanoparticles, comparable to…
The objective of the present study is to investigate flows in helically sinuous tubes with a small amplitude of helicity for physiological and clinical applications. Three-dimensional computations of steady flows in helically sinuous tubes are carried out by using a Navier-Stokes solver based on the spectral/hp elemen…
In this work, two series of ceramic CaCu 3 Ti 4 O 12 (CCTO) have been prepared by a solid‐state reaction, studying the effect of an extra calcination and milling step of the raw materials in one of the products. The comparison of the green powder characteristics, microstructure, and electrical properties of the sinter…
Recently, it has been recognized the shape of particles plays an essential role in the design of materials with unique properties. In this study, PLGA non-spherical microarchitectures, rods and fibers, were fabricated successfully in high yield by single emulsion-solvent evaporation method in the presence of sodium tr…
This work studies the electrochemical growth behavior of cobalt nanowires in highly ordered aluminum oxide membrane. Considering the electrodeposition of metallic nanowires, cation concentration profile in each nano pore was calculated. With assumption of linear diffusion zone on the growing surface of nanowires, a mo…
We characterize the energy loss of the nonequilibrium electron system in individual metallic single-walled carbon nanotubes at low temperature. Using Johnson noise thermometry, we demonstrate that, for a nanotube with Ohmic contacts, the dc resistance at finite bias current directly reflects the average electron tempe…
We use 40 laser excitation energies to analyze the differences in the Raman spectra from chemical vapor deposition-derived double-wall carbon nanotube (CVD-DWNT) bundles, fullerene-derived DWNT bundles $({\text{C}}_{60}\text{-DWNTs})$, and individual fullerene-derived DWNTs with inner type-I and type-II semiconducting…
The optical properties of the supramolecular aggregates formed by semisynthetic 3 1 -methoxy zinc chlorins were studied theoretically using an exciton theory description. The exciton coupling between the chromophores was calculated using a transition density formalism, making it possible to distinguish stereochemical…
Abstract Plasma polymerization of styrene was used to modify the hydrophilic surfaces of halloysite nanotubes to investigate the reinforcement effect of new hydrophobic surfaces on the dynamic mechanical properties of halloysite–polystyrene nanocomposites at various degrees of loading. Pristine and plasma‐modified hal…
An irradiated polyethylene sample containing mostly dienyl free radicals was fabricated by using a combination of photo and thermal treatments. This allowed, for the first time, unambiguous observation of the dienyl radical’s EPR signal to be a singlet with eight hyperfine peaks 9 G apart. Accurate simulation paramete…
In the present work, a long-circulating epirubicin hydrochloride (EPI)-containing thermosensitive liposome aiming at antitumor therapy, DPPC/MSPC/DSPG/DSPE-mPEG(2000) (EPI-LTSL), was developed and evaluated. Nonthermosensitive and traditional liposomes, HSPC/cholesterol/DSPG/DSPE-mPEG(2000) (EPI-NTSL) and HSPC/cholest…
A novel method for synthesizing polymer nanopods from a linear polymer bearing pendant propargyl ether groups, using gold nanoparticles as both the template and the catalyst for the cross-linking reaction, is reported. The transformations involved in the cross-linking process are unprecedented on the surface of a gold…
The mechanism that leads to different fragility values upon approaching the glass transition remains a topic of active discussion. Many researchers are trying to find an answer in the properties of the frozen glassy state. Following this approach, we focus here on a previously proposed relationship between the fragili…
A fairly broad experimental basis exists for solid oxide fuel cells reversibly operated as H2O electrolyser cells (SOECs), notably for classical cells with Ni based anodes, YSZ electrolytes, and LSM cathodes. High electrical-to-chemical energy conversion efficiencies are achieved at such cells. Results from the long-t…
Abstract Here we report the data on the few layer graphene films grown by a chemical vapour deposition on nickel foils and transferred onto desirable substrates for different applications. The experimental conditions have been optimized to prepare a really single graphene layer. A strong influence of the growth condit…
We study the mechanics of nematically ordered semiflexible networks showing that they, like isotropic networks, undergo an affine to nonaffine crossover controlled by the ratio of the filament length to the nonaffinity length. Deep in the nonaffine regime, however, these anisotropic networks exhibit a much more comple…
We present a computational approach for coarse-grained simulations of nanoparticle-polymer melt mixtures. We first examine the accuracy of an effective one-component approach based on a pair interaction approximation to polymer-mediated interactions, and demonstrate that even at low particle volume fractions, the poly…
Investigations of Ni/(Sc)YSZ cermets for solid oxide cells (SOCs) were performed by electrochemical impedance spectroscopy (EIS), under varying experimental conditions and upon redox cycling, using three different designs of symmetric cells. The deconvolution and fitting of the obtained impedance spectra was performed…
This paper explores the potential of sample-controlled thermal analysis (SCTA) in order to perform compositional analysis of multicomponent polymeric materials by means of thermogravimetric experiments. In SCTA experiments, the response of the sample to the temperature determines the evolution of the temperature by me…
We demonstrate the stabilization of a magnetic ground state in epitaxial ${\text{NiMn}}_{2}{\text{O}}_{4}$ (NMO) thin films not observed in their bulk counterpart. Bulk NMO exhibits a magnetic transition from a paramagnetic phase to a collinear ferrimagnetic moment configuration below 110 K and to a canted moment conf…