Materials Literature
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This paper investigates the confinement and quality ($Q)$ factors of the dielectric mode, exterior surface plasmonic mode, and interior surface plasmonic mode in a metal-nanolayer-coated silica microtoroid. It is found that the confinement of these modes relies mainly on the real part of the coating-metal permittivity…
This paper is a part of research carried out for the manufacturing and evaluation of riot helmet shells having continuous textile reinforcement. Low energy impact tests were carried out on the developed riot helmet shells at different locations on the helmet shell with different impact energy levels. Energy absorption…
Nanocrystalline spinel lithium manganese oxide ( $LiMn_2O_4$ ) powders with narrow-size-distribution, pure-phase particles, and high crystallinity with an average crystallite size of about 70 nm were synthesized at $600^{\circ}C$ for 6 h in air by freeze drying method. Spinel $LiMn_2O_4$ is also prepared by sol-gel us…
The chemical composition of a TiO2 nanoparticle coated paper surface was analyzed using time-of-flight secondary ion mass spectrometry (ToF-SIMS) to study the interconnection between wettability and surface chemistry on the nanoscale. In this work, a superhydrophobic TiO2 surface rich in carboxyl-terminated molecules…
Eine komplexe Reaktionssequenz, die eine Gerüstumlagerung mit einschließt, führt in guten Ausbeuten zu 10-Dimesitylboryl-substituiertem Dibenzoborepin. Das Borylborepin zeigt außergewöhnliche photochrome Eigenschaften und geht eine Bora-Nazarov-Cyclisierung unter Bildung einer dunkelblauen Verbindung mit Allylkation-a…
Geschwindigkeit ist alles: Ein neuer kristalliner mikroporöser Feststoff wurde hergestellt, der aus diskreten organischen Käfigen besteht, die ausschließlich aus Kohlenstoff-Kohlenstoff-Bindungen aufgebaut sind. Die Porosität des Materials kann leicht über die Abscheidungskinetik eingestellt werden, wodurch wahlweise…
Closing the loop: Light absorption by a sensitizer–diiron(III) complex in the presence of a sacrificial electron donor and subsequent exposure to O2 led to the formation of the corresponding active diiron(III)–peroxo species, which can transfer an oxygen atom to a substrate (see scheme).
The relaxed complex scheme is an in silico drug screening method that accounts for receptor flexibility using molecular dynamics simulations. Here, we used this approach combined with similarity searches and experimental inhibition assays to identify several low micromolar, non-bisphosphonate inhibitors, bisamidines,…
ABSTRACT In this work, a new method of the synthesis of nano zero valent iron (nZVI) is presented. Ultrasonic wave as a novel method is used to synthesize nanoparticles and the physico‐chemical properties of particles compared with conventional synthesis method. Among the various synthesis methods, chemical reduction…
The Hg(II)-specific intramolecular cyclization reaction of ethynyl phenols was carried out for the first time in semiaqueous media at ambient temperature. The reaction unit (ethynyl phenol) was coupled with a malononitrile derivative (signal unit), which afforded the chromogenic Hg(II) indicator 7. The reaction of the…
In this letter, GaN-based p-i-n ultraviolet (UV) photodetectors (PDs) are fabricated on patterned sapphire substrate (PSS) for the first time. Based on cathodoluminescence mapping and x-ray diffraction measurement, the as-grown structure on PSS has considerably lower defect density than that of a similar structure gro…
PURPOSE OF REVIEW: Tuberculosis (TB) has been a most turbulent problem prevailing for the last several decades. The emergence of multidrug-resistant strains and the dearth of anti-TB drugs are threatening the future containment of TB. Nanotechnology presents an exciting opportunity for proper identification of mycobac…
Soil and water (sludge) obtained from reserve pits used in unconventional natural gas mining was analyzed for the presence of technologically enhanced naturally occurring radioactive material (TENORM). Samples were analyzed for total gamma, alpha, and beta radiation, and specific radionuclides: beryllium, potassium, s…
Monodisperse nanocrystals of a new wurtzite phase of Cu(2)CoSnS(4) (CCTS) have been synthesized using a simple solution-based method. The wurtzite CCTS nanocrystals grow in the shape of nanorods with an average length of 32 ± 2.0 and width of 16 ± 1.5 nm. The more stable stannite phase of CCTS has also been synthesize…
Although amine-based CO(2) absorption is a leading contender for full-scale postcombustion CO(2) capture at power plants, concerns have been raised about the potential release of carcinogenic N-nitrosamines and N-nitramines formed by reaction of exhaust gas NO(x) with the amines. Experiments with a laboratory-scale pi…
A variety of processes of crystal growth proceeds via the gas phase. A short comparative overview on gas phase transports is given here. However, in the main we deal with the concept of Chemical Vapor Transport Reactions [1, 2]. The term “Chemical Vapor Transport” (CVT) summarizes heterogeneous reactions which show on…
The off-axis constant fatigue life diagrams for a unidirectional carbon/epoxy laminate in different fiber orientations are identified over the whole range of stress ratio. The experimental results show that the off-axis constant fatigue life diagram plotted in the plane of alternating and mean stresses tends to shrink…
BACKGROUND: Iron oxide nanoparticles (IONs) are a promising nanoplatform for contrast-enhanced MRI. Recently, magnetic particle imaging (MPI) was introduced as a new imaging modality, which is able to directly visualize magnetic particles and could serve as a more sensitive and quantitative alternative to MRI. However…
Bimetallic Cu–Ni/TiO 2 photocatalysts were prepared at different temperatures with varying Cu:Ni mass compositions. The photocatalysts were further calcined at selected temperatures. Characterization procedures were carried out on the photocatalysts to understand the correlation between the photocatalytic activity and…
We report the complementary resistive switching (CRS) behaviors in aluminum nitride (AlN)-based memory devices as the promising new material system for large-scale integration of passive crossbar arrays. By utilizing different electrodes (Cu, Pt, and TiN), CRS characteristics are demonstrated in both TiN/AlN/Cu/AlN/Ti…