Materials Literature
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In this contribution we are presenting a simple precipitation method to synthesize zinc oxide (ZnO) nanoparticles using zinc nitrate and urea in aqueous solution. The obtained precipitated compound was calcined and structurally characterized by Powder X-ray diffraction (XRD), Thermogravimetric analysis (TGA), Scanning…
In this study, calcium carbonate crystals were obtained by mixing of calcium chloride and sodium carbonate in the presence of biopolymer, carboxymethyl inulin (CMI). The effect of the feed rate of reactant and the initial [Ca+2] concentration was investigated. The produced calcium carbonate (CaCO3) crystals were chara…
For nickel-containing alloys irradiated in thermalized neutron fluxes, the formation and reaction of 59 Ni with thermal neutrons can lead to time-varying changes in displacement damage rate, expressed as displacements per atom per second (dpa.s -1 ), gas formation and nuclear heating. Ni-rich alloys are used in PWR an…
Corrosion behavior of hot-dipped zinc-based coatings (pure zinc, Zn–0.25%Al and Zn–5%Al) was studied through potentiodynamic polarization test and electrochemical impedance spectroscopy in 3.5% NaCl solution. Corrosion products were analysed by means of SEM, EDS and XRD. The results reveal that Zn–5%Al coating exhibit…
Recent progress in drug discovery has enabled the targeting of specific intracellular molecules to achieve therapeutic effects. These next-generation therapeutics are often biologics that cannot enter cells by mere diffusion. Therefore, it is imperative that drug carriers are efficiently internalized by cells and reac…
The occurrence of the incomplete capacitive semi-circle in the high frequency region of electrochemical impedance spectra was studied using thin electrolyte layer-covered two-electrode system. Thin electrolyte layer was made by evenly depositing NaCl particles onto the electrode surface and subsequently exposing to hu…
Research Article| June 01, 2013 How Ions and Molecules Organize to Form Crystals H. Henry Teng H. Henry Teng *Department of Chemistry, The George Washington UniversityWashington, DC 20052, USAE-mail: hteng@gwu.edu Search for other works by this author on: GSW Google Scholar Author and Article Information H. Henry Teng…
A polymeric blend has been prepared using urea formaldehyde (UF) and epoxy (DGEBA) resin in 1:1 mass ratio. The thermal degradation of UF/epoxy resin blend (UFE) was investigated by using thermogravimetric analyses (TGA), coupled with FTIR and MS. The results of TGA revealed that the pyrolysis process can be divided i…
Recently, we have shown that targeting the cancer cell nucleus with solid gold nanospheres, using a cancer cell penetrating/pro-apoptotic peptide (RGD) and a nuclear localization sequence peptide (NLS), inhibits cell division, thus leading to apoptosis. In the present work, flow cytometric analysis revealed an increas…
The poor patency rate following small-diameter vascular grafting remains a major hurdle for the widespread clinical application of artificial blood vessels to date. Our previous studies found that electrospun poly(L-lactide-co-epsilon-caprolactone) (P[LLA-CL]) nanofibers facilitated the attachment and growth of endoth…
Abstract This investigation was conducted to evaluate the effects of post-harvest application of silver nanoparticles (N-Ag) and dark storage on plastid pigments, petal abscission, lipid peroxidation and activities of ascorbate peroxidase (APX) and guaiacol peroxidase (POD) in pelargonium cultivars ‘Blue Wonder’ and ‘…
Our recent research on the Mn-based antiperovskite functional materials AX Mn 3 ( A : metal or semiconducting elements; X : C or N) is outlined. Antiperovskite carbides (e.g., AlCMn 3 ) show large magnetocaloric effect comparable to those of typical magnetic refrigerant materials. Enhanced giant magnetoresistance up t…
A mathematical framework is developed to predict the longevity of a submerged superhydrophobic surface made up of parallel grooves. Time-dependent integro-differential equations predicting the instantaneous behavior of the air–water interface are derived by applying the balance of forces across the air–water interface…
Inorganic nanoparticles (NPs) currently have immense potential as drug delivery vectors due to their unique physicochemical properties such as high surface area per unit volume, their optical and magnetic uniqueness and the ability to be functionalized with a large number of ligands to enhance their affinity towards t…
The concept of plasma separation of spent nuclear fuel in a plane perpendicular to the magnetic field in an electric potential of special configuration is developed. A specific feature of the proposed approach consists in using an accelerating potential for reducing energy and angular spread of plasma ions at the entr…
Zirconium and zirconium alloys are widely used as nuclear reactor core materials such as fuel cladding and guide tubes because they have excellent corrosion- and radiation-resistant properties. In the reactor core, zirconium alloys are subjected to high-energy neutron fluence, causing radiation-induced dislocation and…
The precursor glass in the ZnO – Al 2 O 3 – B 2 O 3 – SiO 2 ( ZABS ) system doped with Eu 2 O 3 was prepared by the melt‐quench technique. The transparent willemite, Zn 2 SiO 4 ( ZS ) glass–ceramic nanocomposites were derived from this precursor glass by a controlled crystallization process. The formation of willemite…
Glass samples from two systems, Nb2O5–TeO2 and WO3–TeO2, were prepared at two melt quenching rates and characterized by density, DSC, UV-visible, and Raman spectroscopy. Addition of Nb2O5 decreased the density while increase in the WO3 concentration increased the density. Glasses prepared at higher quenching rates had…
Since the discovery of colossal dielectric constant in CCTO supercapacitor in 2000, development of its practical application to energy storage has been of great interest. In spite of intensive efforts, there has been thus far, no report of proven application. The object of this research is to understand the reason for…
A series of Mg–10(Al + Y) alloys with various weight ratios of Al to Y were cast to investigate the role of Al2Y in grain refinement in Mg–Al–Y ternary system. Thermal analysis combined with microstructural and EDX analysis was used to determine the phase transformation temperatures during solidification process. Expe…