Materials Literature
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Many semiarid streams are threatened both by human demands and climatic effects (global warming), but little is known about their algal biodiversity and their conservation value, especially in Mediterranean areas. The aim of the present study was to evaluate annual changes in the structure and species richness of diat…
The temperature dependence of the transport properties of ${({\text{SrMnO}}_{3})}_{n}/{({\text{LaMnO}}_{3})}_{2n}$ superlattices has been systematically investigated by changing the number of interfaces while keeping the total thickness of the system fixed. The superlattices undergo a rich variety of transitions among…
The thermal conductivities of a series of molten alkali halides have been evaluated by using molecular dynamics simulation within the framework of Fumi-Tosi potential models. Although the calculated results showed 0%-50% larger values than experimental results depending on system, they are in agreement with each other…
Abstract A facile route was applied to synthesize indium oxyhydroxide (InOOH) with urchin‐like nanostructures through polymer‐assisted hydrolysis of the In 3+ cation in water/ethanol mixed solvent. The uniform InOOH urchin‐like nanostructures are composed of nanorods with a diameter of several nanometers and a length…
Abstract A series of push‐pull azo compounds containing bulky substituents are synthesized, yielding fully amorphous materials with glass‐transition temperatures above 200 °C. Thin films are subjected to holographic illumination and show superior bulk photomigration in terms of speed and efficiency compared to materia…
Electronic structure calculations were performed for the mixed-valent ${\mathrm{Ni}}^{1+}/{\mathrm{Ni}}^{2+}$ nickelate ${\mathrm{La}}_{3}{\mathrm{Ni}}_{2}{\mathrm{O}}_{6}$, which exhibits electronic instabilities of the Fermi surface similar to that of the isostructural superconducting ${\mathrm{La}}_{2}{\mathrm{CaCu…
Abstract Polyethylene terephthalate containing Isosorbide (PEIT) polymers made from renewable corn‐derived Isosorbide monomer exhibit a wide range of glass transition temperatures (80–180°C) and are therefore able to be used in many applications. Stress–strain curves for high Isosorbide content copolymers show strain…
Once released into the environment, engineered nanomaterials may be transformed by microbially mediated redox processes altering their toxicity and fate. Little information currently exists on engineered nanomaterial transformation under environmentally relevant conditions. Here, we report the development of an in vit…
Inelastic neutron-scattering experiments have been carried out on polycrystalline samples of the ${\text{FeSe}}_{1\ensuremath{-}x}$ superconductors. We report the phonon density of states for ${\text{FeSe}}_{1\ensuremath{-}x}$ with ${T}_{c}\ensuremath{\approx}8\text{ }\text{K}$. The phonon cutoff frequency is observed…
Exciton migration! Spectroscopic analyses and extensive molecular dynamics studies revealed a well-defined 4(1) helix in which the perylene molecules (see figure) form four "helter-skelter-like" overlapping pathways along which excitons and electrons can rapidly migrate.We report on a combined experimental and computa…
METHODOLOGY DFT-Periodic Functional Theory Car-Parinello Dynamics Hartee-Fock Correlations Multiscale Coarse Graining Approaches in Molecular Dynamics Molecular Dynamics, Diffusion Reactive Force Fields Equilibrium Monte Carlo Methods, Zeolites Kinetic Monte Carlo CATALYSIS AND MATERIALS SCIENCE APPLICATIONS NMR Metho…
An increase in the degree of chemical compatibility between drug and polymeric structure in the core has been shown to raise the encapsulation efficiency and lower the rate of drug release from polymeric micelles. In this study, to achieve an optimized polymeric micellar delivery system for the solubilization and cont…
Novel chitosan derivatives carrying linoleic acid (LA) as hydrophobic moieties and poly(beta-malic acid) (PMLA) as hydrophilic moieties (LA/PMLA double grafted chitosan, LMC) were synthesized. It self-assembled into nanoparticles of 190-350 nm in water, which carried negative surface charges in physiological pH. The c…
Abstract Responsive supramolekulare Gele wurden aus vierarmigem Poly(ε‐caprolacton) mit Kronenether‐Endgruppen (PCL–DB24C8) und zweiarmigem Poly(ε‐caprolacton) mit Dibenzylammonium‐Endgruppen (PCL–DBAS) aufgebaut (siehe Schema), wobei sich die Bildung von Pseudorotaxanstrukturen aus Kronenether‐ und Ammoniumeinheiten…
Abstract A natural polyol was obtained from tung oil (TO) to be further used in the formulation of rigid polyurethane polymers. The synthesis of the polyol was carried out in two steps: first hydroxylation of the double bonds in the fatty acid chains of the unsaturated oil and then, alcoholysis of the hydroxylated oil…
It is clear that nanofibrous structures can be used as tools for many applications. It is already known that electrospinning is a highly versatile method of producing nanofibres and recent developments in the technique of electrospinning have led to the development of aligned nanofibres and biphasic, core-sheath fibre…
We present the first Raman scattering measurements on nanoparticulate vanadium dioxide (VO(2)), as well as the first observations of the temperature-induced phase transition in individual VO(2) nanoparticles (NPs). We compare the Raman response of two VO(2) NPs and a companion VO(2) film undergoing their monoclinic-te…
Best of both worlds: Reduction of an organometallic Co precursor on preformed CdSe nanorods yields two distinct semiconducting-magnetic heterostructures (see picture). The selective growth of Co on the tips of CdSe first gives nanosphere-nanorod dimers, which evolve into nanorod-nanorod structures. In the hybrid objec…
Palladium (Pd) nanoparticles exhibit broad optical resonances that have been assigned to so-called localized surface plasmons (LSPs). The resonance's energy varies with particle shape in a similar fashion as is well known for LSPs in gold and silver nanoparticles, but the line-shape is always anomalously asymmetric. W…
We report the fabrication and optical characterization of individual ZnO vertical nanowire laser cavities. Dilute nanowire arrays with interwire spacing >10 microm were produced by a modified chemical vapor transport (CVT) method yielding an ideal platform for single nanowire imaging and spectroscopy. Lasing character…