Materials Literature
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Abstract Ce0.88Si0.1Pt0.02O2−δ and Ce0.88Al0.1Pt0.02O2−δ catalysts were synthesized by using a low‐temperature sonochemical method and characterized by using XRD, TEM, XPS, FTIR, and BET surface analyzer. The catalytic activities of these compounds were investigated for the water–gas shift reaction in the temperature…
The purpose of this work was the synthesis, characterization and efficacy evaluation of new biocompatible antioxidant polymers linking trans-ferulic acid or a-lipoic acid. In particular, ferulic or lipoic acid were introduced in the preformed polymeric backbone. The new antioxidant biopolymers were characterized by Fo…
Abstract Peptide-based gemini surfactants, called PG-surfactants, consisting of a tri- or tetra-Asp peptide core and acetylated dodecylamine-conjugated Cys residues at both the N- and C-terminal ends (D3C12 and D4C12), form a stable planar bilayer membrane on a solid support. From the DLS and TEM analyses, D3C12 and D…
Using the sol‐gel route Nd 3+ ‐doped oxyfluoride glass‐ceramics were prepared. LiYF 4 and YF 3 crystals were deposited in the glass‐ceramics and their size, distribution, and amount ratio were varied by changing the compositions and heating temperatures. The incorporation of Nd 3+ ions into both the fluoride crystals…
The potential of highly ordered array nanostructures in sensing applications is well recognized, particularly with the ability to define the structural composition and arrangement of the individual nanorods accurately. The use of heterogeneous nanostructures generates an additional degree of freedom, which can be used…
Abstract Gels of poly(l-lactic acid) (PLLA) in several solvents, including N,N-dimethylformamide (DMF) were formed by cooling solutions of PLLA. Polarizing optical micrographs showed the formation of spherulites of PLLA in the gels below 70 °C. The storage modulus of the gel decreased abruptly below 70 °C, which sugge…
Monochromatic, aberration-corrected, dual-beam low energy electron microscopy (MAD-LEEM) is a novel imaging technique aimed at high resolution imaging of macromolecules, nanoparticles, and surfaces. MAD-LEEM combines three innovative electron-optical concepts in a single tool: a monochromator, a mirror aberration corr…
UNLABELLED: Trout-skin (Oncorhynchus mykiss) gelatin-based films containing antioxidants (epigallocatechin gallate (EGCG), 50 and 250 ppm w/w) and green tea powder (1% and 20% w/w of gelatin) were tested for tensile strength, elastic modulus, and elongation, and oxygen and water vapor transmission rates, in vitro anti…
The first-row transition metals (TMs) are applied to induce the assembly of small molybdenum clusters (SMCs) in the molybdenum/TM/phosphate system, and eight SMC-based compounds are synthesized: [(V(2)O(2))(H(2)PMo(8)V(4)O(40))]·2(en)·12H(2)O (1), [CrMo(6)O(18)(OH)(6)]·1.5(H(2)en)·5H(2)O (2), [MnMo(12)O(24)(OH)(6)(HPO…
The high-pressure polymorphs of CuI have attracted much attention due to the somewhat contradictory identification of their structures by means of x-ray diffraction measurements and theoretical calculations. In this paper, we report the results of a theoretical investigation of polymorphs of CuI including zinc-blende,…
It is interesting to investigate fluid flow in nanochannel with a Janus interface (NCJI), especially when considering the asymmetric situations of wettability in the biology. The simulation results show that the temperature has a significant influence on the particle number near the hydrophilic surface because the des…
RutC is the third enzyme in the Escherichia coli rut pathway of uracil degradation. RutC belongs to the highly conserved YjgF family of proteins. The structure of the RutC protein was determined and refined to 1.95 Å resolution. The crystal belonged to space group P2(1)2(1)2 and contained six molecules in the asymmetr…
To strengthen interactions in bio-nanocomposite systems, montmorillonite (MMT) was intercalated by surface-coating with soy protein before being incorporated within soy protein dispersions for cross-linking by glutaraldehyde (GA). Dynamic small strain tests were utilized as a non-destructive method to reveal the impro…
We theoretically investigate Coulomb drag in a system of two parallel monolayers of graphene. Using a Boltzmann equation approach, we study a variety of limits ranging from the nondegenerate interaction-dominated limit close to charge neutrality all the way to the Fermi liquid regime. In the nondegenerate limit, we fi…
We study the behavior of the Cr${}_{2+x}$Se alloys based on state-of-the-art first-principles electronic structure calculations. We show that these alloys are of special interest since they combine possible applications in spintronics devices with a series of diverse magnetic phenomena. First, we show that Cr${}_{2}$S…
We study the structure and phase behavior of a model fluid with competing short-range attraction and long-range repulsion, constituted by hard spheres interacting by means of two opposite Kac potentials. We use, to this purpose, a thermodynamically self-consistent integral equation approach developed by one of the aut…
Abstract The acetoxylation of toluene in the presence of acetic acid and oxygen was performed over a PdSb/TiO2 catalyst at 210 °C and at various reaction pressures (1–10 bar). A remarkable improvement in the catalytic performance and a significant shortening of the induction period were found with an increase in pres…
Abstract Many types of ferrous metals can sustain an indefinite number of repeated loading cycles (N ⩾ 107 cycles) provided that the maximum imposed stresses do not exceed certain critical values usually referred to as fatigue or endurance limits. In current practice, these limits are primarily inferred from statistic…
In this paper we present a generalization of Berreman's model for the elastic contribution to the surface free-energy density of a nematic liquid crystal in presence of a sawtooth substrate which favors homeotropic anchoring as a function of the wave number of the surface structure q, the tilt angle α, and the surface…
A modified design of the composite right/left handed (CRLH) unit cell showing all-pass and triple band response is proposed. By using an additional inductance which cross-couples the input and output ports of the conventional CRLH, a bridged CRLH unit cell (B-CRLH) is created. This allows additional right-handed (RH)…