Materials Literature
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The advance in nanotechnology has enabled us to utilize particles in the size of the nanoscale. This has created new therapeutic horizons, and in the case of silver, the currently available data only reveals the surface of the potential benefits and the wide range of applications. Interactions between viral biomolecul…
Much like the world described in Abbott's Flatland, graphene is a two-dimensional object. And, as ``Flatland'' is ``a romance of many dimensions,'' graphene is much more than just a flat crystal. It possesses a number of unusual properties which are often unique or superior to those in other materials. In this brief l…
The aim of this research is to develop a textile product to prevent and eliminate biological contaminations in drinking water and other liquid-leading systems. Herein, the adjustment of the silver release from silvered textile materials with the retention of the antibactericidal qualities has been studied. The limited…
This study presents an analysis method to estimate the hysteresis torque of a permanent magnet synchronous motor (PMSM) with the iron-losses data. In the PMSM, hysteresis losses caused by the permanent magnet can produce an offset torque adding to the cogging torque. Therefore the accurate estimation of hysteresis tor…
4-Hydroxybenzoyl-CoA (4-HB-CoA) thioesterase from Arthrobacter is the final enzyme catalyzing the hydrolysis of 4-HB-CoA to produce coenzyme A and 4-hydroxybenzoic acid in the bacterial 4-chlorobenzoate dehalogenation pathway. Using a mutation E73A that blocks catalysis, stable complexes of the enzyme and its substrat…
We generate inherent structures, local potential-energy minima, of the "k-space overlap potential" in two-dimensional many-particle systems using a cooling and quenching simulation technique. The ground states associated with the k-space overlap potential are stealthy (i.e., completely suppress single scattering of ra…
NO 2 interacts with soot in the atmosphere and, at higher temperatures, is used as an oxidant to regenerate filters on the exhausts of diesel cars. This work investigates the adsorption and reaction of NO 2 (forming NO) with either carbon black or soot (from a diesel engine) held at near ambient temperatures (20–75 °C…
How to sample three-dimensional microstructure and effectively reduce experimental error is a challenging problem. Taking seven single-phase polycrystalline structures generated by 400×400×400 Potts Monte Carlo simulation as the study object, effects of sampling strategy on the determination of various characteristic…
A detailed study of the macroscopic and microscopic behavior upon sintering of sodium niobate was carried out. A dynamic sintering curve, recorded at a constant heating rate of 5°C/min up to 1412°C, supported by the microstructural analysis of the samples, quenched at selected temperatures, revealed a multiple‐stage d…
12-Oxophytodienoate reductase 3 (OPR3), one of the enzymes involved in the biosynthesis of the plant hormone jasmonic acid (JA), catalyzes the reduction of the cyclopentenone ring of (9S,13S)-12-oxophytodienoate [(9S,13S)-OPDA]. However, there has been no structural information about the interaction between OPRs and t…
Abstract In this investigation, the effect of polymer matrix‐MWCNT interphase on the stress and strain fields developed at the close vicinity of MWCNT was studied. The recently developed concept of the hybrid interphase (Papanicolaou et al., 2002) was applied. According to this concept, the interphase thickness depend…
Abstract Recent studies have demonstrated that single‐walled carbon nanotube (SWCNT) films can be doped by a nitric/sulfuric acid treatment to significantly improve its conductivity. However, the sheet resistance is still too high for many applications. Here we report on a simple treatment using a piranha mixture that…
Preparation of Li 1− m Ag m La 0.99− n Y n Pr 0.01 ( MoO 4 ) 2 phosphors was done by a convenient method of solid‐state reaction technique in the air. The effects of synthesis temperature, substitution of Ag + , Y 3+ on the LiLa ( MoO 4 ) 2 crystal structure, and luminescence properties of Pr 3+ in the molybdate host…
Clear room temperature ferromagnetism has been observed in ZnO powders prepared by microemulsion. The O vacancy (VO) clusters mediated by the VO with one electron (F center) contributed to the ferromagnetism, while the isolated F centers contributed to the low temperature paramagnetism. Annealing in H2 incorporated in…
Abstract The impact properties of the traditional 12 % Cr AISI D2 steel and a family of new generation 8 % Cr cold work tool steels (average chemical composition fulfilling the following ranges: C = 1.00 ± 0.20; Cr = 8.00 ± 0.50; Mo = 1.75 ± 0.75; V = 1.10 ± 0.70; Nb = 0.50 ± 0.45; Si = 0.95 ± 0.10; Mn ≤ 0.50; P≤0.03;…
Analysis of the haloalkanoate dehalogenase superfamily (HADSF) has uncovered homologues occurring within the same organism that are found to possess broad, overlapping substrate specificities, and low catalytic efficiencies. Here we compare the HADSF phosphatase BT1666 from Bacteroides thetaiotaomicron VPI-5482 to a h…
We study the effect of electron-electron interaction and spin on electronic and transport properties of gated graphene nanoribbons (GNRs) in a perpendicular magnetic field in the regime of the lowest Landau level (LL). The electron-electron interaction is taken into account using the Hartree and Hubbard approximations…
If some supercooled liquids are cooled further, they freeze into a specific medium state with both properties of liquid-like structure and solid-like hardness, so-called “glass.” The fact that dynamics freeze drastically when there is only a slight change in static structure remains a mystery in solid-state physics. R…
We have investigated the optical properties of colloidal seed-grown CdSe (seed)/CdTe (arms) nanotetrapods both experimentally and computationally. The tetrapods exhibit a type-II transition arising from electrons localized in the CdSe seed region and holes delocalized in the CdTe arms, along with a residual type-I rec…
Unique packaging of Ag(2)O on the surface of polycrystalline AgCl allows fabrication of a new useful, superhydrophobic composite material. This pure inorganic material with surface porosity of submicrometer aperture size fabricates air pockets, which make the composite material superhydrophobic. The new material behav…