Materials Literature
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In the present study two quinoline-thiazole derivatives namely, {4-[1-aza-2-(phenyl)vinyl]-3-phenyl-2- thioxo(1,3-thiazoline-5-yl)}-N-[1-aza-2-(2-chloro(3-quinolyl))vinyl] (Inh I) and {4-[1-aza-2-(4- methoxyphenyl)vinyl]-3-phenyl-2-thioxo(1,3-thiazoline-5-yl)}-N-[1-aza-2-(2 chloro (3-quinolyl))vinyl] (Inh II) were syn…
Calotropis procera is a small, erect plant, which is used in several traditional medicines to treat many diseases. It is a native of most of the Asian and African countries. All plant parts exude thick white milky juice (latex) on cut or break. This shrub has been known to possess analgesic, antitumor, antihelmintic,…
Forming an ordered surface layer is possible together with the formation of Janus nanoparticles in the chemical modification of the surface of silver colloids. This is achieved via sorption of nanoparticles on the surface of chemically modified silica grafted with amine, followed by sequential treatment with modifier…
In this work, we have studied the nanostructure, the crystallographic texture, and the crystal lattice of the martensite of the Ti-50.26 at % Ni alloy subjected to a thermomechanical treatment, which includes cold rolling, warm (at 150°C) rolling, intermediate and post-deformation annealings (at 400°C) in different co…
The electronic-spectroscopy technique is used to study the properties of solutions of double-decker diphthalocyanine complexes of lanthanides LnPc 2 (Ln = Ho, Er, Yb, Lu) in chloroform, dimethylformamide, water-micellar systems, solutions of proteins, and polymers, as well as on the surface of silica nanoparticles. In…
We have investigated the transport and magnetic properties of group-IV ferromagnetic semiconductor Ge1-xFex films (x = 1.0 and 2.3%) with and without boron doping grown by molecular beam epitaxy (MBE). In order to accurately measure the transport properties of 100-nm-thick Ge1-xFex films, (001)-oriented silicon-on-ins…
A novel torsion apparatus for micro-scale specimens is developed based on electromagnetism, in which a coil-magnet component is used for actuating and torque measuring. When the current gets through the coil, the torque, produced by Ampere force, can be easily measured by recording the current. A laser displacement se…
Aggregation of magnesium octa-[(4′-benzo-15-crown-5)oxy]phthalocyaninate (Mgcr 8 Pc) in solutions of biocompatible anionic surfactant, sodium deoxycholate (SDC), was studied. It was shown using the electron absorption spectra that formation of Mgcr 8 Pc monomers in micellar solutions of SDC is affected by both increas…
The effect of benzyl triphenyl phosphonium chloride (BTPPC) and halide ion (KI) on the corrosion of mild steel in a solution of 0.3 M phosphoric acid have been investigated at various inhibitor concentrations and temperatures by potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), temperature ki…
Heat conduction in single-walled carbon nanotubes (SWCNTs) has been investigated by using various methods, while less work has been focused on multi-walled carbon nanotubes (MWCNTs). The thermal conductivities of the double-walled carbon nanotubes (DWCNTs) with two different temperature control methods are studied by…
Ni–Mn–Ga Heusler alloys are particularly interesting for their magnetic shape‐memory properties. However, more recently, the observation of magnetic glass‐like behavior in these alloys, particularly at low Ga concentrations, has extended the interest in the properties of these alloys. We have investigated the thermoma…
Evaluation of the field performance of composite insulators is essential for maintaining the desired levels of reliability in power networks. Field performance of composite insulators depends on many factors, including the insulator design, material quality and service conditions experienced. The most critical part of…
Objective: Tabernaemontana divaricata a common garden plant on tropical countries has been used as a traditional medicine. There is an increasing commercial demand for nanoparticles due to their wide applicability in various areas such as electronics, catalysis, chemistry, energy, and medicine. Metallic nanoparticles…
In this paper, an experimental investigation into titanium (Ti) / aluminium (Al)-based ohmic contacts to p-type 4H-silicon carbide (SiC) has been presented. Electrical characterisation of the fabricated contacts showed that metal structures with an initial Ti layer yielded the lowest specific contact resistance (ρc),…
Using propagating surface plasmons (SPs) on a silver nanowire (NW), we demonstrate that a focused laser light at the end of the silver NW can excite a single quantum dot (QD) microns away from the excitation spot. The QD—NW interaction allows the excited QD convert part of its energy into propagating SPs, which then c…
Based on first-principles calculations and thermodynamic stability analysis, we find that MnSnO 3 and MgSnO 3 could be synthesized under restricted condition, as their bulk phases are stable in a limited chemical potential range with respect to the competing phases. It is also found that FeSnO 3 and ZnSnO 3 are unstab…
The effect of heat treatment on the structure and chemical and phase composition of tantalum-containing films with a silicon-carbon matrix has been studied by high-resolution transmission electron microscopy (HRTEM), energy dispersive microanalysis, ultrasoft X-ray emission spectroscopy (USXES), and electron energy-lo…
We study the irreversible aggregation of films of patchy spherical colloids with directional and selective interactions. We report a crossover of the interfacial roughening from the Kardar-Parisi-Zhang (KPZ) to the KPZ with quenched disorder (KPZQ) universality class when the difference between the strong and weak bon…
An on‐chip spectral surface plasmon resonance (SPR) optical sensor with a silver nanoparticle (Ag NP) array has been designed. Dextran (Dex)‐capped Ag NP (Dex‐Ag NP) arrays were initially self‐assembled on the gold (Au) sensing film. The large perturbations and increased penetration depth of the evanescent field, whic…
A combinação de propriedades físicas e mecânicas qualificam as cerâmicas para aplicações em sistemas de proteção balística. Materiais cerâmicos normalmente formam a primeira camada de um sistema de blindagem mista, recebendo o impacto inicial do projétil, e dissipando grande parte da energia cinética ao fragmentar o p…