Materials Literature
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Implanted scaffold materials induce an inflammatory reaction known as the 'foreign body reaction' (FBR). We hypothesized that the observed difference in FBR between rats and mice correlate with different expression dynamics of cytokines and chemokines, which are key orchestrators of the FBR. After implantation of hexa…
A method to search for local structural similarities in proteins at atomic resolution is presented. It is demonstrated that a huge amount of structural data can be handled within a reasonable CPU time by using a conventional relational database management system with appropriate indexing of geometric data. This method…
An electron gun constructed using carbon-nanofiber (CNF) emitters and an electrostatic Einzel lens system has been characterized for the development of a high-resolution x-ray source. The CNFs used were grown on tungsten and palladium tips by plasma-enhanced chemical-vapor deposition. Electron beams with the energies…
Anode-supported planar solid oxide fuel cells (SOFCs) were successfully fabricated employing a single-step cofiring process. The cells were comprised of a -stabilized zirconia (YSZ) anode, a YSZ electrolyte, a Ca-doped cathode active layer, and an LCM cathode current collector layer. The fabrication process involved t…
In the present study, chopped henequen natural fibers without and with surface modification by electron beam (E-beam) treatment were incorporated into a polypropylene matrix. Prior to composite fabrication, a bundle of raw henequen fibers were treated at various E-beam intensities from 10 kGy to 500 kGy. The effect of…
Recently, Troy Polymers, Inc. developed a chemical process for recycling of polyurethane foam scrap from shredder residue into polyols for polyurethanes (Sendijarevic, V. (2004). Process for Chemical Recycling of Polyurethane-containing Scrap, U.S. Patent No. 6,750,260 (assigned to Troy Polymers, Inc. and Polyventure,…
The influence of 2D confinement of alumina nanochannels on the assembly of spherical micelles formed from block copolymers was investigated by analysing their replicas in mesoporous silica. It could be shown that spherical micelles follow assembly patterns similar to those of hard spheres under cylindrical confinement…
We have described a simple approach to the transition temperature engineering in metal-free mesogenic octaalkoxycarbonyl phthalocyanines Pc(COOR)8. The method is based on the esterification of a common octaacid precursor with binary mixtures of alcohols. Variation of the length of alkyl chain and the ratio of componen…
The main objective of the present investigation was to increase the photoluminescence and color chromaticity of -doped Sr-borate phosphors by adding co-dopants. Among the co-dopants used, which included Ce, Mn, Eu, Mg, Zn, Ca, and Ba, the co-doping of europium and samarium was effective in improving the luminescence a…
Perovskite-type BaHfO3 and SrHfO3 are studied using the first principle density functional method. The lattice parameters, elastic constants, bulk and shear moduli, density of states, band structures and charge densities of BaHfO3 and SrHfO3 are calculated after structural relaxation. The calculation results show that…
Colloid chemistry and self-assembly phenomena present an essential aspect of the design of fine material structures and devices in the coming era. Numerous uncertainties, however, pervade this practical field, including the questionable processing potential of pre-synthesized self-assembled systems in the design of ad…
Micro-radiotherapy (micro-RT) system is specially designed for small animal (cancer cell) irradiation for basic and translational cancer research. We use carbon nanotube (CNT) field emission technology to develop a novel micro-RT system for image-guided high precision irradiation that is similar to the state of the ar…
Two W(V)-Mn(III) bimetallic compounds, [Mn(Cl-salmen)(H(2)O)2]{[Mn(5-Clsalmen)(H(2)O)]2[W(CN)8].2H(2)O (1.2H(2)O) [5-Clsalmen = N,N'-(1-methylethylene)bis(5-chlorosalicylideneiminato) dianion], which contains trinuclear Mn(2)W and isolated Mn(III) moieties, and [Mn(3-MeOsalcy)(H(2)O)2]3[W(CN)(8)].2H(2)O (2.2H(2)O) [3-…
The purpose of this study was to investigate the physicochemical properties of poly(ethylene oxide) (PEO) and guaifenesin containing beads prepared by a melt-extrusion process and film-coated with a methacrylic acid copolymer. Solubility parameter calculations, thermal gravimetric analysis (TGA), scanning electron mic…
We use two-beam second-harmonic generation to perform a quantitative tensor analysis of the effective dipolar surface nonlinearity and the separable multipolar bulk nonlinearity for BK7 glass. The most straightforward, self-consistent interpretation of the results is obtained when the effective surface response is ass…
Plasma damage of low-k dielectrics during photoresist (PR) stripping in a dual-damascene process is a critical issue in the application of copper/low-k technology for ⩽45nm nodes to increase the signal processing speed of integrated circuit devices. In this article, a detailed and systematic work has been conducted to…
Nano-effect on solid electrolytes that appears as a conductivity enhancement is expected as a way to develop or improve practical solid ionic devices, such as solid oxide fuel cells. Interfaces play a major role in the enhanced conductivity. Using nanocrystals (NCs) as the starting material, the nanostructured materia…
Using Co 2 O 3 as the Co source, doped cerium oxide thin films with the composition of Ce 0.97 Co 0.03 O 2−δ (CCO) are deposited on Si(111) and glass substrates by pulse laser deposition technique. X-ray diffraction reveals that CCO films with (111) preferential orientation are grown on Si, while the film on glass is…
New methods for improving the quality of protein crystals are always being sought. Electric-field-induced protein crystallization is one of them. A few devices have already been developed. We conducted a series of experiments for several years and fabricated many electrode panels to realize a device for electric-field…
There are few published results of etch tunnel growth in aluminum at temperatures below because a high tunnel density is not achieved at these temperatures. We find that etching high purity capacitor foil with its as-received surface oxide produces a low but sufficient density of tunnels so steady state tunnel growth…