Materials Literature
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Pt-based nanostructures serving as anode catalysts for the methanol oxidation reaction (MOR) have been widely studied for many years. Nevertheless, challenging issues such as poor reaction kinetics and the short-term stability of the MOR are the main drawbacks of such catalysts and limit their applications. Herein, we…
Co2FeAl film with L21 structure was prepared. Its magnetic and Gilbert damping properties were studied by ferromagnetic resonance (FMR) and time-resolved magneto-optical Kerr effect (TR-MOKE), respectively. It is observed that the apparent damping parameter decreases drastically with increasing magnetic field at low f…
The concept of aromaticity has been advanced beyond the framework of organic chemistry, and multiple aromaticity (σ, π, and δ) has been observed to account for the highly symmetric structures or unusual stability of the clusters. In the present study, the electronic structures and chemical bonding of small monolanthan…
We investigate the electronic structure of the GaN(101¯0) prototype surface for GaN nanowire sidewalls. We find a paradoxical situation that a surface state at all k points in the bandgap cannot be probed by conventional scanning tunneling microscopy, due to a dispersion characterized by a steep minimum with low densi…
Ferroelectric resistive switching was artificially induced in a conductive ferroelectric capacitor by inserting a thin dielectric layer at an electrode/ferroelectric interface. Ferroelectric capacitors consisting of semiconducting Bi-deficient Bi1−δFeO3 layers with SrRuO3 electrodes showed no resistive switching, but…
BACKGROUND: Treatment of late stage cancers has proven to be a very difficult task. Targeted therapy and combinatory drug administration may be the solution. PURPOSE: The study was performed to evaluate the therapeutic efficacy of PEG-PE micelles, co-loaded with curcumin (CUR) and doxorubicin (DOX), and targeted with…
Aberrant crystallization within the human body can lead to several disease states, although traditionally the pathogenesis of such diseases has not been studied from a materials science perspective. A fundamental understanding of the nucleation and growth, sometimes followed by aggregation and adhesion of crystals to…
The effectiveness of atomic and excited molecular oxygen species at inactivating Penicillium digitatum spores was quantitatively investigated by measuring these species and evaluating the spore inactivation rate. To avoid the effects of ultraviolet light and charged species, a non-equilibrium atmospheric-pressure radi…
We study quenches of the interaction and electron-phonon coupling parameter in the Hubbard-Holstein model, using nonequilibrium dynamical mean field theory. The calculations are based on a generalized Lang-Firsov scheme for time-dependent interactions or externally driven phonons, and an approximate strong-coupling im…
In this paper, an apparatus for measuring electron-scattering cross sections while applying a strong axial magnetic field is described. The first original experiment performed with this setup is the measurement of the total cross sections for pyrimidine (1,3-diazine), which are presented for the incident electron ener…
We present the synthesis and characterization of two novel thiazole-containing conjugated polymers ( PTTTz and PTTz ) that are isostructural to poly(3-hexylthiophene) (P3HT). The novel materials demonstrate optical and morphological properties almost identical to those of P3HT but with HOMO and LUMO levels that are up…
Fundamental understanding of the mass transport of petrochemical and biomass derived molecules in microporous and mesoporous solid catalysts is important for developing the next generation of heterogeneous catalysts for traditional hydrocarbon processing including biomass pyrolysis and upgrading. Hierarchical zeolites…
Vegetable oil-based microemulsification not only reduces the high viscosity of vegetable oils but also enhances the miscibility of polar and oil phases. In addition, vegetable oil-based microemulsion fuels produce lower pollutant emissions compared to neat No.2 diesel. Since the stability of microemulsion fuels is tem…
The biomass, coal and their blends at blending ratios (biomass : coal) of 95:5, 90:10, 85:15 and 80:20 were pyrolysed under a nitrogen environment at four different heating rates comprising 5°C, 10°C, 15°C and 20°C per minute to investigate their pyrolytic behaviour and to determine kinetic parameters of thermal decom…
The β-lactam antibiotic ceftriaxone was suggested as a therapeutic agent in several neurodegenerative disorders, either for its ability to counteract glutamate-mediated toxicity, as in cerebral ischemia, or for its ability to enhance the degradation of misfolded proteins, as in Alexander's disease. Recently, the effic…
A porcine calvaria defect study was carried out to investigate the bone repair potential of three-dimensional (3D)-printed poly-ε-caprolactone (PCL) scaffolds embedded with nanoporous PCL. A microscopic grid network was created by rapid prototyping making a 3D-fused deposition model (FDM-PCL). Afterward, the FDM-PCL s…
In this work, the thin films of β-phase poly(9,9-dioctylfluorene) (PFO) were realized using 1,2-dichloroethane as solvent. The absorption and photoluminescence spectra show an additional absorption peak at 435 nm and a red-shifted emission band, which indicates the formation of β-phase in the film. Polymer light-emitt…
Elektrische Wellenmechanik: Ein neu entworfener triboelektrischer Nanogenerator beruht auf der Kontaktelektrisierung zwischen einer gemusterten Anordnung von Polydimethylsiloxan-Pyramiden und Wasser. Ein preisgünstiger und einfacher Prototyp des Nanogenerators belegt dessen Potenzial zur Energiegewinnung aus Wellen in…
Variable temperature spectroscopic, kinetic, and chemical studies were performed on a soluble Cr III Cl 3 (PNP) (PNP = bis(diarylphosphino)alkylamine) ethylene trimerization precatalyst to map out its methylaluminoxane (MAO) activation sequence. These studies indicate that treatment of Cr III Cl 3 (PNP) with MAO leads…
We report ultra-compact surface-normal high-Q optical filters based on single- and double-layer stacked Fano resonance photonic crystal slabs on both Si and quartz substrates. A single layer photonic crystal filter was designed and a Q factor of 1,737 was obtained with 23 dB extinction ratio. With stacked double-layer…