Materials Literature
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Herein we report 22 acedan-derived, two-photon fluorophores with synthetic feasibility and full coverage of visible wavelength emission. The emission wavelengths were predicted by computational analysis, which enabled us to visualize multicolor images by two-photon excitation with single wavelength, and to design a tu…
Abstract The diffusion mechanism of oxygen transport in the epitaxial La 0.7 Sr 0.3 MnO 3− δ films was examined for different practically significant conditions of annealing. An indirect method based on the interrelation between the phase transition temperature and the oxygen index was used for stepwise monitoring of…
Coil-globule transition of adsorbed polymers on attractive surface is simulated by using dynamic Monte Carlo simulation. The effect of surface attraction strength EPS and intrachain attraction strength EPP on polymer phases is investigated. The coil-globule transition point is dependent on EPS, while the globule confo…
Superconducting FeSe single crystals of (001) orientation are synthesized via a hydrothermal ion-release route. An Ising spin-nematic order is identified by our systematic measurements of in-plane angular-dependent magnetoresistance (AMR) and static magnetization. The turn-on temperature of anisotropic AMR signifies t…
As an indicator of cooperative motion in a system of Brownian particles that models two-dimensional colloidal liquids, a displacement correlation tensor is calculated analytically and compared with numerical results. The key idea for the analytical calculation is to relate the displacement correlation tensor, which is…
Molecular self-assembly has emerged as a powerful technique for controlling the structure and properties of core/shell structured supraparticles. However, drug-loading capacities and therapeutic effects of self-assembled magnetic core/shell nanocarriers with magnetic nanoparticles in the core are limited by the interv…
Abstract Cage‐type siloxanes have attracted increasing attention as building blocks for silica‐based nanomaterials as their corners can be modified with various functional groups. Cubic octasiloxanes incorporating both Si−H and Si−O t Bu groups [( t BuO) n H 8− n Si 8 O 12 ; n =1, 2 or 7] have been synthesized by the…
A systematic approach to model heterogeneous catalyst material and characterization at the atomic level is presented. Two examples are used to illustrate the concepts derived from those studies. They document the problems arising on the way to create such model systems and they also indicate possible solutions. The fi…
ZnO epitaxial layers are grown on c-plane GaN (p-type)/sapphire substrates using a chemical vapor deposition technique. Structural and luminescence properties of these layers have been studied systematically as a function of various growth parameters. It has been found that high quality ZnO epitaxial layers can indeed…
Cytochromes P450 (CYP, P450) are a large family of heme-active-site proteins involved in many catalytic processes, including steroidogenesis. In humans, four primary enzymes are involved in the metabolism of almost all xenobiotics. Among these enzymes, CYP3A4 is responsible for the inactivation of the majority of used…
The first charge-separated iridide (Ir 3– ) in an extended solid was identified at elevated pressure when combined with potassium. According to an unbiased structure searching method that combines first-principles calculations with particle swarm optimization algorithms, K 3 Ir in the Cu 3 Ti-type structure shows a fa…
In this work, polystyrene microspheres (PSMS) and PSMS-based polymer nanocomposites have been prepared. PSMS were first synthesized by dispersion polymerization of styrene monomer. The microsphere- coated-multi-walled carbon nanotube (PSMS/MWCNT) nanocomposite was prepared by incorporating MWCNT into PSMS matrix. Anil…
Among amphiphilic polymers with diverse skeletons, fluorinated architectures have attracted significant attention due to their unique property of segregation and self-assembly into discrete supramolecular entities. Herein, we have synthesized amphiphilic copolymers by grafting hydrophobic alkyl/perfluoroalkyl chains a…
The hydrogen-storage (H-storage) capacities of different polyhydroxy adamantanes or adamantanols coordinated (dressed or doped) with alkaline earth metal cations (Mg 2+ and Ca 2+ ) have been studied using the density functional theory (DFT) method. The complex coordinated with one Mg 2+ cation adsorbs a four H 2 molec…
Machine learning algorithms have been demonstrated to predict atomistic properties approaching the accuracy of quantum chemical calculations at significantly less computational cost. Difficulties arise, however, when attempting to apply these techniques to large systems, or systems possessing excessive conformational…
Natural rubber/chloroprene rubber (NR/CR) blends are among the commonly used rubber blends in industry and continuously are exposed to severe weather changes. To investigate the effects of accelerator type on the network structure and stress relaxation of unaged and aged NR/CE vulcanizates, tetramethyl thiuram disulfi…
This paper describes the design and use of a new irradiation facility for the LVR-15 nuclear research reactor. The CHOUCA MT irradiation rig was produced in France according to a design of the ÚJV Group (ÚJV Řež and Research Center Řež). There are six heating sections situated along the rig, each instrumented and cont…
Prototype boards of high-density expanded cork agglomerates (230 and 290 kg m−3) were produced and tested for tensile strength (before and after moisture resistance cyclic tests), hardness, thermal conductivity, and reaction to fire. Increases in tensile strength and dimensional stability were observed with the increa…
We report the modular synthesis of donor–photosensitizer–bridge–acceptor (D–P–B–A) triads and D–P dyads for the formation of photoinduced charge‐separated species. The structures are based on a phenothiazine unit (D), a bis(terpyridine) [bis(tpy)] ruthenium(II) complex (P), several phenylene(ethynylene)‐type spacer un…
Zinc ferrite (Fe2O3/ZnO) nanocomposites were successfully synthesized by simple co-precipitation method via iron (III) nitrate 9-hydrate (Fe(NO3)3.9H2O) and zinc nitrate hexahydrate (Zn(NO3)2.6H2O) as precursor in the presence of cetyltrimethylammonium bromide (CTAB) surfactant. The samples were characterized by high…