Materials Literature
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Electrospinning is a very simple and versatile process by which polymer nanofibers with diameters ranging from a few nanometers to several micrometers (usually between 50 and 500 nm) can be produced using an electrostatically driven jet of polymer solution (or polymer melt). Significant progress has been made in this…
In this paper, we report on the synthesis of Cu nanoparticles through a single-precursor route by controlling the growth temperature. Selective adsorption of oleylamine on various crystal planes may play an important role in the growth process. The understanding of this selfassembling process will help us develop reli…
Abstract: Polyacrylonitrile (PAN) nanofibres and carbon nanotube (CNT) reinforced PAN nanofibres were successfully electrospun. A polymer plasticiser, ethylene carbonate (EC), was added into the PAN/CNT solutions. The average diameter of the fibres varied between 80 and 240 nm. This study investigated the effects of p…
To obtain magnetic tunnel junctions (MTJs) composed of non-equilibrium alloy, Co2FeSn films were prepared by atomically controlled alternate deposition at various substrate temperatures. X-ray diffraction patterns and Mössbauer spectra clarify that Co2FeSn films in the Heusler alloy phase can be realized by growing at…
Abstract A series of V 2 O 5 ‐ and Co 3 O 4 ‐modified ceria/alumina supports and their corresponding gold catalysts were synthesized and their catalytic activities evaluated in the CO oxidation reaction. V 2 O 5 ‐doped solids demonstrated a poor capacity to abate CO, even lower than that of the original ceria/alumina…
The relationship between the first-order metal-insulator transition (MIT) and the structural phase transition (SPT) in VO2 film is analyzed by dielectric function, optical conductivity, plasma energy, and electrical conductivity. The MIT and SPT temperatures in VO2 films were approximately 68 and 75 °C, respectively,…
The structure of glibenclamide, 5-chloro-N-(2-{4-[(cyclohexylamino)carbonyl] aminosulfonyl}phenyl) ethyl)-2-methoxybenzamide, an important antidiabetic drug, has been studied both in solution and in the solid state by a combination of NMR spectroscopy and theoretical calculations. The possibility that glibenclamide su…
Cardiovascular disease (CVD) is a leading cause of death and hospitalization worldwide. The need for small caliber vessels ( < 6mm) to treat CVD patients has grown; however the availability of autologous vessels in cardiac and peripheral bypass candidates is limited. The search for an alternative vessel source is wide…
Foaming technology used in the plastic production process makes it possible to reduce costs and lighten the products, which is why this technology is widely used. Foaming technology is generally categorized as involving either a “Chemical Foaming Process” or a “Physical Foaming Process,” the latter also referred to as…
The temperature changes in the PbHfO 3 structure in the temperature range of 20 < t < 400°C have been studied by X-ray powder diffraction. The sequence of phase changes with an increase in temperature was found to be as follows: orthorhombic phase Pbam (O1), orthorhombic phase C 2 mm (O2), tetragonal phase P 4 mm (T),…
Films of graphite oxide nanosheets have been prepared by deposition from an aqueous alcohol emulsion onto a Teflon FEP substrate. The behavior of the films exposed to monochromatic vacuum UV radiation at a wavelength of 123.6 nm has been studied. It has been found that irradiation decreases the water content and the a…
We report self-consistent ab-initio electronic, structural, elastic, and optical properties of cubic SrTiO3 perovskite. Our non-relativistic calculations employed a generalized gradient approximation (GGA) potential and the linear combination of atomic orbitals (LCAO) formalism. The distinctive feature of our computat…
Abstract Well-aligned zinc oxide (ZnO) nanorods are fabricated on indium-tin-oxide (ITO) coated glass substrates via self-assembly of ZnO nanoparticles created using continuous spray pyrolysis (CoSP) technique. The method involves pre-treatment by dip-coating the substrate with a solution comprising of zinc salt for c…
This paper reports the origin of ferromagnetism in Cu-doped ZnO thin films. Room-temperature ferromagnetism is obtained in all the thin films when deposited at different oxygen partial pressure. An obviously enhanced peak corresponding to zinc vacancy is observed in the photoluminescence spectra, while the electrical…
Microcalorimetry has proven to be a versatile tool to investigate first order magnetic phase transitions as it can be used in different experimental modes to separate the latent heat from heat capacity. However, the methodology fails if the latent heat contribution is below instrumental resolution of 10 nJ. If the nuc…
Abstract Recent advances in the synthesis of well‐defined high‐surface‐area mesoporous silica/polymer composites via surface‐initiated polymerization (“grafting from” method) and via attachment of preformed polymer chains (“grafting to” method) to surfaces of ordered mesoporous silicas (OMSs) are reviewed in the conte…
The radio frequency has been used to generate plasma of argon, acetylene gases, and their mixture should be replaced by mixture in a plasma enhanced chemical vapor deposition system. The generated plasma discharge has been characterized by an impedance analyzer (VI probe) for the evaluation of various electrical param…
OBJECTIVE: To evaluate the acute toxicity of carboxymethyl chitosan-2, 2' ethylenedioxy bis-ethylamine-folate (CMC-EDBE-FA) and as well as possible effect on microbial growth and in vitro cell cyto-toxicity. METHODS: CMC-EDBE-FA was prepared on basis of carboxymethyl chitosan tagged with folic acid by covalently linka…
The aim of this study was to fabricate camptothecin/iron(III) oxide (CPT/Fe₂O₃)-loaded poly(D,L-lactide-co-glycolide) (PLGA) composite mats to modulate the CPT release and to improve the structural integrity and antitumor activity of the released drug. The CPT/Fe₂O₃-loaded PLGA ultrafine fibers were prepared for the f…
The effect of hydrostatic pressure on the corrosion behavior of nickel in NaCl solution was investigated by electrochemical measurements and OM/SEM observation. The increasing hydrostatic pressure deteriorated the pitting corrosion resistance of nickel, distinguished by the decrease of critical pitting potential (Ecir…