Materials Literature
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Biomimetic scaffolds have been investigated in vascular tissue engineering for many years. Excellent biodegradable materials are desired as temporary scaffolds to support cell growth and disappear gradually with the progress of guided tissue regeneration. In the present paper, a series of biodegradable copolymers were…
It was recently reported that Ce-doped Ca 6 BaP 4 O 17 displayed blue-green emission under excitation in the near-ultraviolet (UV) region and that luminescence intensities can be greatly improved by codoping with Si. Here, a combination of hybrid density functional theory (DFT) and wave function-based CASSCF/CASPT2 ca…
The interaction of electrospun mats with water is critical for many possible applications, and the water contact angle on the surface is the parameter usually measured to characterize wetting. Although useful for hydrophobic surfaces, this approach is limited for hydrophilic mats, where wicking also has to be consider…
To study the effect of twin boundaries on thermal transmission, thermal conductivities of twinned diamond with different twin thicknesses have been studied by NEMD simulation. Results indicate that twin boundaries show a weak phonon scattering effect on thermal transmission, which is only caused by the additional twin…
Focusing on the influence of fine metal particles on the insulation characteristics of outdoor insulators, spherical micrometer-level iron powders were used to represent fine metal particles of different parameters on a polymer insulator specimen surface. Dynamic movement and lift-off behavior of fine particles, as we…
The aim of this work was to combine the properties of chlorobutyl rubber (CIIR) and natural rubber (NR) in a binary blend for application in the inner liner of tubeless tires, using organomodified montmorillonite (Cloisite ® 15A) as filler in order to improve the barrier property of the material. The maintenance of th…
Modern enzymes are highly optimized biocatalysts that process their substrates with extreme efficiency. Many enzymes catalyze more than one reaction; however, the persistence of such ambiguities, their consequences and evolutionary causes are largely unknown. As a paradigmatic case, we study the history of bi-function…
UNLABELLED: Metabolism consists of biochemical reactions that are combined to generate a robust metabolic network that can respond to perturbations and also adapt to changing environmental conditions. Escherichia coli and Salmonella enterica are closely related enterobacteria that share metabolic components, pathway s…
Guided-mode resonance (GMR) structures consisting of sub-wavelength periodic gratings are capable of producing narrow-linewidth optical resonances. This paper describes a sol-gel-based imprint lithography method for the fabrication of submicron 1D and 2D GMR structures. This method utilizes a patterned polydimethylsil…
Crystallization kinetics of ampicillin were estimated from induction-times and seeded and unseeded experiments. The concentration of ampicillin in solution was monitored by polarimetry and refractometry, while crystals were analyzed by focused beam refractive measurements and light microscopy. Variations of solute con…
Spin-crossover molecules are systems of great interest due to their behavior as molecular level switches, which makes them promising candidates for nanoscale memory devices, among other applications. In this paper, we report a computational study for the calculation of the transition temperature (T(1/2)), a key physic…
We investigate magnetoelectric couplings between an electric polarization and an antisymmetric spin pair, ${\mathbf{S}}_{i}\ifmmode\times\else\texttimes\fi{}{\mathbf{S}}_{j}$, in a multiorbital Hubbard model on a distorted lattice. We microscopically derive a generic form of the electric polarization, ${\mathbf{p}}_{\…
CaCoSO, synthesized from CaO, Co, and S at 900 °C, is isostructural with CaZnSO and CaFeSO. The structure is non-centrosymmetric by virtue of the arrangement of the vertex-sharing CoS3O tetrahedra which are linked by their sulfide vertices to form layers. The crystal structure adopts space group P63mc (No. 186), and t…
Carbon nanotubes (CNTs) were dispersed without any solvent in poly(tetramethylene ether glycol), (PTMEG) well above its melting point by ultrasonication in the pulse mode and different times. The polyol/CNT suspensions were used to prepare in situ polymerized thermoplastic polyurethane TPU/CNT nanocomposites with the…
Abstract Herein we report a step‐by‐step strategy for the organic modification of polyoxovanadates, which is based on a suitable polyoxovanadate platform, and a series of novel functionalized polyoxovanadates can be synthesized conveniently by sequential esterification and amidation reactions.
Smart polymer nanogel-assisted drug delivery systems have attracted more and more attention in cancer chemotherapy because of their well-defined morphologies and pleiotropic functions in recent years. In this work, an l-cystine-crosslinked reduction-responsive polypeptide nanogel of methoxy poly(ethylene glycol)-poly(…
Anticorrosion properties of waterborne epoxy coatings with three structured nano-particles of TiO2 were investigated and compared. The surface morphology and structure of TiO2 have been analysed by XRD, SEM and N2 adsorption–desorption. Corrosion performance of the nano-composite coating was investigated employing ele…
We investigated electronic-structure changes of tensile-strained ultrathin $\mathrm{LaNi}{\mathrm{O}}_{3}$ (LNO) films from ten to one unit cells (UCs) using angle-resolved photoemission spectroscopy (ARPES). We found that there is a critical thickness ${t}_{c}$ between four and three UCs below which Ni ${e}_{g}$ elec…
Microbially induced corrosion (MIC) is a complex problem that affects various industries. Several techniques have been developed to monitor corrosion and elucidate corrosion mechanisms, including microbiological processes that induce metal deterioration. We used zero resistance ammetry (ZRA) in a split chamber configu…
A helicity preserving near-infrared mirror with a reflection efficiency over 91% for incidence angles up to 60° on any arbitrary incidence plane is realized by establishing a unified design framework of artificial electromagnetic boundaries of metasurfaces for omnidirectional polarization control. Similar efficiency a…