Materials Literature
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Over the past two decades, important progress has been made in the development of nanomaterials, especially for biomedical applications. The surface of magnetic nanoparticles (MNPs) can be modified and functionalized with a targeting agent in order to improve their longevity in the blood, their cell internalization, a…
A previously unknown member of the Bacillariaceae was discovered almost simultaneously in four different brackish coastal wetlands on the Atlantic and Mediterranean coasts of the Iberian Peninsula. It appears to tolerate a wide range of salinities but was never common in samples where it occurred. The frustules were c…
Ultrasonic measurements have been carried out to investigate the critical dynamics of structural and superconducting transitions due to degenerate orbital bands in iron pnictide compounds with the formula Ba(Fe$_{1-x}$Co$_x$)$_2$As$_2$. The attenuation coefficient $\alpha_{\mathrm{L}[110]}$ of the longitudinal ultraso…
N[Pt(L1)(L2)] (1; L1 = [4',5':5,6][1,4]dithiino[2,3-b]quinoxaline-1',3'dithiolato; L2 = (R)-α-MBAdto dithiooxamidate, where (R)-α-MBA = (R)-(+)-α-methylbenzyl) upon HCl addition at room temperature change dramatically: the color turns from deep blue to green; the luminescence switches from deep red to green; the nonli…
In order to investigate the impact of the repeated drying in dryer on physical properties of cotton fabric, smoothness appearance (SA), dimensional shrinkage, bending stiffness, Scanning electron microscopy (SEM), thermo-gravimetric analyzer (TGA) and x-ray diffraction (XRD) were employed. Results showed that smoothne…
For a drop on an incline with small tilt angle $\ensuremath{\alpha}$, when the contact line is a circle of radius $r$, we derive the relation $mgsin\ensuremath{\alpha}=\ensuremath{\gamma}r\frac{\ensuremath{\pi}}{2}(cos{\ensuremath{\theta}}^{\mathrm{min}}\ensuremath{-}cos{\ensuremath{\theta}}^{\mathrm{max}})$ at first…
Some crystalline materials show indirect evidence of glasslike behavior, which is surprising because a crystal is highly ordered whereas a glass is not. By using colloidal crystals composed of micrometer-sized spheres suspended in water, a new experiment mimics such phenomena and provides a novel way of understanding…
Abstract The chemical composition, shape and size of upconverting nanoparticles are known to have a great influence on their spectroscopic properties, such as the emission color and the emission intensity variation as a function of temperature. This work shows the color tuning and the thermal sensitivity of NaYb 0.67…
Hybrid composite armors consisting of Kevlar short fibers reinforced high-density polyethylene were prepared and the effects of the addition of micro and nano-fillers on the dynamic impact response and the energy absorption under ballistic impact were investigated. Five groups of specimens were manufactured using comp…
We report studies on the effect of volume fraction and surfactant concentration on the kinetics of destabilization of emulsions under the influence of gravity. Model oil‐in‐water emulsions, designed to mimic crude oil–water emulsions, were prepared with varying volume fractions of dispersed oil but nearly identical no…
ABSTRACT Polypropylene (PP) composites are being increasingly used as thermal insulation coatings in both onshore and offshore pipelines. In this study, the direct tensile behavior of pure PP, PP with glass microsphere filler, and PP with 65% glass filler were investigated at 22, 60, and 90 °C temperatures at various…
In this work, we demonstrate the potential of surface-initiated single electron transfer living radical polymerization for surface modification applications that confer low-fouling properties. The versatility of the technique, which can be applied to a wide variety of substrates, has been displayed by the successful g…
ABSTRACT Polypropylene (PP)/Multiwall carbon nanotubes (MWCNTs) nanocomposites were fabricated via melt compounding that utilizes a corotating twin‐screw extruder. Two commercially available MWCNTs, Baytubes C150P and C70P, were incorporated into PP matrix at concentration of 3 wt %. The nanocomposites samples were an…
Abstract The formation of [{CoII(teta)2}{CoII2(tren)(teta)2}VIV15SbIII6O42(H2O)]?ca.9H2O [teta = triethylenetetraamine; tren = tris(2-aminoethyl)amine] illustrates a strategy toward reducing the molecular charge of polyoxovanadates, a key challenge in their use as components in single-molecule electronics. Here, a V?O…
ABSTRACT An aliphatic‐aromatic random‐block copolyester of poly(ethylene terephthalate) (PET), and poly(enthylene adipate) (PEA), PET‐ co ‐PEA, was synthesized via melt polycondensation. The chemical structure of the products were characterized by two kinds of spectroscopic techniques (Fourier transform infrared and 1…
The new Me 2 Si-bridged [1]ferrocenophane ([1]FCP) with one i Pr group in α position on a Cp ring was synthesized in an enantiopure ( S p - 4 ) and a racemic form ( rac - 4 ). The molecular structure of rac - 4 was determined by single-crystal X-ray analysis (tilt angle α = 20.15(14)°). Experimental and calculated mol…
The 2-D rotating magnetic field is demonstrated in electrical steel sheets, which are widely used in iron cores of motors, etc. In addition, the magnetic properties of a motor iron core are strongly affected by the compressive stress in the laminated direction induced by welding, bolt bundles, etc. In order to investi…
Abstract Harvesting the properties of nanosheets is not only crucial from a fundamental perspective, but also for the development of novel functional devices based on 2D nanosheets. Herein, we demonstrate the processing of organically modified TBAxH1−xCa2Nb3O10 nanosheets into photonic thin films and study their color…
New advanced numerical computer model enabling accurate simulation of fragmentation parameters of large Length over Diameter (L/D) explosively driven metal shells has been developed and validated. The newly developed large L/D multi-region model links three-dimensional axisymmetric high strain high strain-rate hydroco…
The directed self-assembly (DSA) of block copolymers (BCPs) is a potential solution for patterning critical features for integrated circuits at future technology nodes. For this process to be implemented, there needs to be a better understanding of how the template guides the assembly and induces subsurface changes in…