Papers – Page 682 – TechConnect Briefs

Amorphous Diamond as a Thermionic Material

Sung J.C., Sung M., Kan M-C, Hsiao T-J., Chen Y-T, Sung J.C., Sung M., Kinik Company, TW

Amorphous diamond is essentially a chaotic carbon mixture with distorted sp2 and sp3 bonds. As such it possesses both metallic character of conductive graphite and semiconductor character of insulating diamond. Moreover, as each carbon atom [...]

Photochemical Alteration of the Stability of Polymer Nano-Agglomerates

Seipenbusch M., Rothenbacher S., Weber A.P., Salas-Vicente J., Braun A.M., Kasper G., University of Karlsruhe, DE

Interparticle adhesion in the nano-regime leads to undesired stable agglomerates in particulate products. On one hand, the high surface energies of nanoparticles favor the reduction of overall surface area by maximization of the number of [...]

Preparation and Characterization of Nafion/Microporous Titanosilicate Composite Membranes as Ion-Conducting Materials

Ryu S.-Y., Jeon J-D, Kwak S-Y, Seoul National Univesity, KR

Nafion is currently the most frequently used polymeric electrolyte in membranes for many fuel cell applications. Direct methanol fuel cells this electrolyte membrane are currently being considered as a desirable electrochemical power source in potable [...]

Synthesis of visible light active nanocrystalline bismuth oxide based photocatalysts

Akurati K.K., Vital A., Reifler F., Ritter A., Graule T., Swiss federal laboratories for materials science & technology, EMPA, CH

Photocatalysis phenomenon has attracted considerable interest in recent years because of its usage in water purification, environmental cleaning, solar energy conversion and generation of alternative energy resources. To date, TiO2 has undoubtedly proven to be [...]

Evaluation of Nanostructured Polymeric Coatings for Corrosion Protection

Aglan A., Ludwick A., Reeves M., Michigan Tech, US

The effect of the addition of multi-walled carbon nanotubes (MWCNT) to epoxy and vinyl chloride/vinyl acetate copolymer coatings on their ability to protect the substrates was studied. Coatings were formulated from these resins with and [...]

Size Dependence Of Conjugation of Amyloid Beta Protein On Gold Colloidal Nanoparticles’ Surfaces

Sri Hartati D., Tsang W., Briglio N.M., MacCormac J.E., Yokoyama K., The State University of New York at Geneseo, US

Fibrillogenesis of amyloid beta (AB) monomers is a hallmark of Alzheimer’s disease. The initial stage of this process involves intermediates of Abeta aggregates; which have been the focus of many previous fibrillogenesis studies. We discovered [...]

Invertible Polymers for the Stabilization of Nanoparticles

Kohut A., Voronov A., Peukert W., Friedrich-Alexander-University of Erlangen-Nuremberg, DE

A new range of amphiphilic polyesters with both hydrophilic and hydrophobic functionalities alternately distributed in the polymer backbone has been synthesized. These polyesters are soluble in aqueous and organic media, where they reveal inverse behavior [...]

Laser diffraction study of inverse opals

Sinitskii A., Abramova V., Laptinskaya T., Tretyakov Yu., Moscow State University, RU

We discuss the experimental data on laser diffraction in tungsten oxide photonic crystal films with an inverse opal structure. The samples were prepared using deposition of monodisperse polystyrene microspheres onto a vertical glass substrate, infiltration [...]

Structural Analysis of Platinum Paladium Nanoparticles Supported on amorphous Silica by High Resolution Electron Microscopy

Castillo N., Diaz Barriga L., Pérez R., UNAM, MX

Bimetallic nanoparticles structures and properties are distinct from those of pure elemental clusters. Particularly nanoalloy clusters finely dispersed onto high surface area supports, play an important role in heterogeneous catalysis because the performance of a [...]

Predicting the Positive Effects of Combined Metallurgical and Thermo-Mechanical Impacts on the Reliability of Solder Joint Interconnections

Khoshnaw F.M., LU, UK

Generally speaking, solder joints fail due to both fatigue and creep. Therefore both mechanisms are strongly considered by designers and manufacturers as an important design criteria. However, since most designers take parameters individually, their designs [...]