nanotubes – TechConnect Briefs

Scalable Manufacturing of High-Nanotube-Content Nanocomposite Fabrics

Martinez-Rubi Y., Jakubinek M.B., Ashrafi B., Simard B., Kingston C.T., Palumbo G., McCrea J., Pallotta R., Katugaha H., National Research Council Canada, CA

Carbon nanotubes (CNTs) have long been considered promising for development of advanced composite materials, due to their unsurpassed properties along with low density, and they are now appearing in an increasing number of industrial applications [...]

Photocatalytic Activity of Immobilized Nano-TiO2 in Complex Wastewaters: Case Study of Multiple Dye Composition

Bellè U., De Flaviis L., Diamanti M.V., Ormellese M., Pedeferri M., Politecnico di Milano, IT

Titanium dioxide (TiO2) is widely investigated for its photocatalytic properties and for the possibility of obtaining nanotubular oxide films with high specific surface area directly immobilized on a substrate. In the present work, nanotubular TiO2 [...]

Photocatalytic activity of nanotubular TiO2 films obtained by anodic oxidation: a comparison in gas and liquid phase

Sanabria B.E., Strini A., Schiavi L., Diamanti M.V., Pedeferri M.P., Politecnico di Milano, IT

The immobilization of nanostructured photocatalysts is of great importance in the purification of both polluted air and liquids (e.g. industrial wastewaters). Titanium dioxide films with nanotubular morphology and good photocatalytic efficiency in both environments can [...]

Facile Spray Coating in Preparing Anisotropic Composites

Song K., Polak R., Abdalla Askar K., Rubner M.F., Cohen R.E., MIT, US

Anisotropy has been taken advantage in composites to achieve specific mechanical, electrical, magnetic and other functional properties. In composite mechanics, orientation of fiber in polymer matrix will reinforce the composites to the greatest potential along [...]

Advanced oxidation processes for water purification: compact vs nanoporous anodic TiO2

Piazza V., Diamanti M.V., Mazare A., Pedeferri MP., Schmuki P., Politecnico di Milano, IT

In the last years, research on TiO2 engineering has been dedicated mostly to thin films for environmental and energetic applications, such as advanced oxidation processes for water purification and dye-sensitized solar cells. Anodic oxidation can [...]

Synthesis of Coaxial CoFe2O4 – (K0.5Na0.5 )NbO3 Nanotubes by Sol-gel Technique Using Inexpensive Templates

Chitra Lekha C.S., Rasi M., Aravind P.B., Anantharaman M.R., Nair S.S., Central University of kerala, IN

Magnetoelectric (ME) coupling, one of the most intriguing aspects of multiferroics, may arise directly between two or more ferroic orders as in single phase multiferroics or indirectly via strain. Strain intermediate ME coupling requires intimate [...]

Alkali Halide Nanoclusters: Structure, Stability, Properties and Mechanism of Formation

Henkes A.V., Fantuzzi F., Nascimento M.A.C., Instituto de Química, Universidade Federal do Rio de Janeiro, BR

Results of accurate quantum-mechanical calculations for alkali halide nanoclusters (LiF, NaCl, KBr), revealed a variety of new morphologies - single and multiple tubes, double-sheets, honeycomb, sodalitic cages- quite distinct from the cubic macro crystal structure. [...]

Nanobiotechlogy: Applications in Food Science and Engineering

Sadeghi R., Ansari S., Uzun S., Bozkurt F., Gezer P.G., Karimi M., Kokini J., University of Illinois at Urbana-Champaign, US

Quantum (QD) dots were conjugated to anti-gliadin antibody and used as a fluorescent probes to track gliadin protein in dough and baked bread samples. CLSM images showed significant changes in the distribution of gliadin within [...]

Unusual thermal diffusion of carbon nanotubes in a thermoplastic polymer

Tishkova V., Pavlenko E., Puechmont P., Flahaut E., Bacsa W.S., CEMES, Univ. Toulouse, FR

The dispersion of carbon nanotubes in polymer composites is a major challenge. Although nanotubes have a high aspect ratio, their tendency to agglomerate limit percolation at low loading. We find that thermal diffusion is reducing [...]

CNTFETs fabricated using an Original Dynamic Air-Brush technique for SWCNTs deposition : application to gas sensing

Bondavalli P., Gorintin L., Feugnet G., Thales Research and Technology, FR

This contribution deals with Carbon Nanotubes Field Effect transistors (CNTFETs) based gas sensors fabricated using a completely new dynamic air-brush technique for SWCNTs deposition. More precisely, we have developed a machine which allows us the [...]