Materials Literature
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Engineered nanoparticles (NPs) offer great application potential in various fields, for example the chemical industry, energy management or medical sciences. Nanoparticles are increasingly being incorporated into daily products. But what happens, if living organisms are exposed to those NPs? Their ability to move seem…
A novel N-doped TiO2 (N1-N2-TiO2) with substitutional and interstitial N impurities simultaneously was successfully synthesized. The catalyst was characterized by X-ray diffraction, X-ray photoelectron spectroscopy, diffuse reflectance spectroscopy, photoluminescence, and electron paramagnetic resonance. The results d…
Abstract Skin‐penetrating devices including intraosseous transcutaneous amputation prostheses (ITAP) and external fixator pins rely on a skin‐implant seal to prevent infection. In this study, we assess the effectiveness of fibronectin (Fn) functionalized hydroxyapatite (HA) coatings for promoting dermal fibroblast and…
Abstract Although anti‐angiogenic agents offer great therapeutic potential, preclinical and clinical studies suggest that these agents, used as monotherapies, have a delayed onset of activity and may have only limited effects on advanced malignancies. Multimodality targeted polymer therapeutics that include anti‐angio…
The purpose of this research was to examine the flank wear and surface roughness in turning gray cast iron using cryogenically treated carbide inserts. Turning experiments were conducted with cutting velocities: 53, 85, 99, 149 m/sec, feeds: 0.12, 0.16, 0.2, 0.24 mm/rev and a constant depth of cut: 1.5 mm. The specime…
Several carbon materials, namely, single-walled nanotubes (CNT1), two-walled nanotubes (CNT2), multiwalled nanotubes (CNT3), and nanofibers (CNF) are synthesized by methane pyrolysis. The resulting nanomaterials are characterized by physical (BET) and electrochemical (charging curves) methods. A catalyst of ethanol el…
In this work we describe an experimental technique that makes it possible to obtain highly bactericidal silver nanoparticles (NPs). Synthesis was carried out using nontoxic reagents, and the technique consisted of reducing silver by glucose via UV irradiation in the presence of oleic or myristic acids as stabilizers.…
We studied wollastonite synthesis from Lithuanian gaize containing calcium carbonate that does not provide the CaO/SiO 2 molar ratio from 0.95 to 1 required for the synthesis of wollastonite. To correct the charge, the following methods were suggested: the addition of calcium oxide under hydrothermal conditions, solid…
For the formation of a high-quality SiO2 and SiO2/Si interface, we have applied thermal-plasma-jet (TPJ)-induced millisecond annealing to SiO2 films deposited at 300 °C by plasma-enhanced chemical vapor deposition (PECVD). By TPJ annealing at 1088 K for 2.8 ms, the amount of Si–OH bond groups decreased significantly a…
Abstract We demonstrate a facile methodology for the production of metallic electrocatalytic microdomain ensembles for a range of analytical sensing challenges. A commercially available off‐the‐shelf cosmetic product can change the voltammetric characteristics of a metallic macro‐electrode created electrolytically int…
Electron spin resonance spectroscopy is used to study the effects of illumination and changes in temperature on spin centers in nanocrystalline anatase powders synthesized by sol-gel methods with various complexing agents. A correlation between the concentration of oxygen radicals at the surface and the rate of photoc…
The Oriented architecture of macromolecules plays a critical role in many aspects of Nanobiotechnology such as in the development of biosensors. To this regard, S-layers which constitute the outermost cell envelope component of many prokaryotic organisms, represent unique self assembled systems with the capability to…
The foreign body reaction that the neural tissue develops around an implanted electrode contributes to insulate the probe and enhances the electrical and mechanical mismatch. It is a complex interaction among cells and soluble mediators and the knowledge of this phenomenon can benefits of formal and analytical methods…
We present an integrated, low noise patch-clamp amplifier for biological nanopore applications. Our amplifier consists of an integrator-differentiator architecture coupled with a novel opamp design in the CMOS 0.35 µm process. The post-layout full-chip simulation shows the input referred noise of the amplifier is 0.49…
The stress-strain response of Cu single-crystal compression micropillar containing initial dislocation network is investigated by three-dimensional discrete dislocation dynamics simulations. The results demonstrate that the stress-strain curves can be divided into three distinct types with increasing the sizes of micr…
We study inelastic gases in two dimensions using event-driven molecular-dynamics simulations. Our focus is the nature of the stationary state attained by rare injection of large amounts of energy to balance the dissipation due to collisions. We find that under such extreme driving, with the injection rate much smaller…
We propose the feasibility of using TiO x N y films as transparent conductors. The TiO x N y films deposited by electron cyclotron resonance plasma sputtering from a Ti target in the metal mode had a face-centered cubic crystal structure. As deposited films incorporated larger numbers of O and N atoms, their crystalli…
Nanomagnetic particles of CoFe 2 O 4 have been synthesized using chemical co-precipitation technique followed by annealing, characterized and investigated by powder XRD and magnetic measurement tools. All samples of nano ferrites synthesized at different annealing temperatures show single phase cubic spinel structure…
The most complete definition for the voltage unbalance is using complex voltage unbalance factor (CVUF) that consists of its magnitude and angle. Unfortunately, the definition did not distinguish between undervoltage and overvoltage unbalance conditions. In this paper, t he analysis of the motor is performed using the…
The piezoelectrets made of porous polytetrafluoroethylene (PTFE) and nonporous fluoroethylenepropylene (FEP) layers are prepared by using a hot-pressing method. The dependence of the quasi-static piezoelectric d33-coefficients of such films on the grid voltage during the corona charging is investigated. The thermal st…