Materials Literature
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Silver nanoparticles are an effective tool for killing disease-causing bacteria. But despite their widespread use in catheters, clothing, toys, cosmetics, and many other products, 1 investigators haven't fully understood whether their effectiveness is a function of the release of germicidal silver ions, some feature s…
We show how to measure with a rotating magnetic field the surface viscosity of a nematic liquid crystal in contact with a thin polymercaptan layer allowing for a planar sliding anchoring of the molecules.
We have performed Raman-scattering measurements on high-quality single crystals of the superconductors K${}_{0.8}$Fe${}_{1.6}$Se${}_{2}$ (${T}_{c}=32$ K), Tl${}_{0.5}$K${}_{0.3}$Fe${}_{1.6}$Se${}_{2}$ (${T}_{c}=29$ K), and Tl${}_{0.5}$Rb${}_{0.3}$Fe${}_{1.6}$Se${}_{2}$ (${T}_{c}=31$ K) as well as of the insulating com…
This article summarizes the results obtained by various experimental methods on the physical properties of a bent-core nematic liquid crystal 4-chloro-1,3-phenylene bis-4-[4′-(9-decenyloxy) benzoyloxy] benzoate (ClPbis10BB). The material exhibits unusual properties in all aspects tested. Its bend flexoelectric coeffic…
Magnetic nanocomposites (MNCs) have highly been acknowledged in the diagnostics and therapeutic applications. Particularly, the multifunctional MNCs have brought a variety of possibilities in targeted drug delivery as well as non-invasive multimodality imaging. A temperature-responsive magnetic drug delivery system ha…
Abstract Zincalstibite-9 R , a new polytype in the hydrotalcite supergroup is reported from the Monte Avanza mine, Italy. It occurs as pale blue curved disc-like tablets flattened on {001} intergrown to form rosettes typically less than 50 μm in diameter, with cyanophyllite and linarite in cavities in baryte. Zincalst…
This paper report on the disorder induced semiconductor to metal transition (SMT) and modifications of grain boundaries in nanocrystalline zinc oxide thin film. Disorder is induced using energetic ion irradiation. It eliminates the possibility of impurities induced transition. However, it is revealed that some critica…
A 500-year-old unpreserved Mary Rose sample, historically containing an iron bolt, was analyzed using enrichment cultures and 16S sequencing. The novel community of bacteria present demonstrates a biological pathway of Fe and S oxidation and a range of acid-generating metabolisms, with implications for preservation an…
Surface potential decay measurement is a widely used tool to test the electrical properties of insulation materials. However, physical mechanism of the surface potential decay is still poorly understood. In this paper, the effect of corona charging time has been investigated. It has been found that as charging time ge…
Drug delivery to the brain remains challenging due to the presence of the blood-brain barrier. In this review, 10 key development criteria are presented that are important for successful drug development to treat CNS diseases by targeted drug delivery systems. Although several routes of delivery are being investigated…
Thermal conductivity of Si nanowire is calculated by applying Monte Carlo (MC) simulation of 110 nm, 37 nm, and 22 nm wire diameter. To study the thermal conductivity of both thick and thin nanowires different phonon group velocity is used in the simulation. This change in the phonon velocity for small diameter nanowi…
Abstract The antagonistic potential of Trichoderma spp. for biological control of wood-damaging fungi was investigated in the present paper. In vitro assays to investigate antifungal characteristics of Trichoderma spp. were conducted with various wood-damaging fungi. Exo-chitinase activity of the isolates was also mea…
Synthesis of various nanostructures on anodic metals such as Al and Ti attracts much attention in recent years. In this paper, we investigate in detail the nanostructure transition on anodic Ti and put forward a novel physical model to systematically explain the formation mechanism and discuss the relevant influential…
It is shown that a bi-layer mushroom structure formed by two coupled metallic grids may enable the resonant enhancement of the near field and superlensing at microwave and terahertz frequencies, to some extent analogous to the silver lens at UV. The charge density waves supported by the two grids can be strongly coupl…
The effects of twin spacing and temperature on the deformation behavior of nanotwinned Al under tensile loading are investigated using a molecular dynamic (MD) simulation method. The result shows that the yield strength of nanotwinned Al decreases with the increase of twin spacing, which is related to the repulsive fo…
Polycrystalline p-type Ag 0.9 Sb 1.1− x Mn x Te 2.05 ( x = 0.05, 0.10, and 0.20) compounds have been prepared by a combined process of melt-quenching and spark plasma sintering. The sample composition of Ag 0.9 Sb 1.1− x Mn x Te 2.05 has been specially designed in order to achieve the doping effect by replacing part o…
Layered double hydroxides (LDHs) can be incorporated in a variety of composites with different structures and properties. The choice of synthesis method is a very important factor in achieving LDHs with the desired structure and properties. A method involving separate nucleation and aging steps (SNAS), layer-by-layer…
This paper presents simulations of pollution and their effects on the electrical performance of cap-and-pin glass suspension insulators. The pollution is modeled by using a partially conductive epoxy resin with graphite powder. The effects of the pollution levels as well as their locations on the insulator surfaces ar…
A critical analysis of the available thermodynamic data for the Fe-V-Ti-C-N system has been performed, and a self-consistent thermodynamic description of this system has been proposed based on the CALPHAD (calculation of phase diagrams) method. Using the constructed thermodynamic description, we calculated the phase e…
Gadolinium based conversion coating, a new chemical protective coating for magnesium alloys, was prepared and its microstructure and corrosion resistance were investigated. The micromorphology, composition and elemental chemical states were observed by scanning electron microscope (SEM), X-ray photoelectron spectrosco…