Mineralization of Monodispersed CdS Nanoparticles on Polyelectrolyte Superstructure Forming an Electroluminescent “Necklace-of-Beads”

We report a nonmicellar method to synthesize monodisperse semiconducting nanoparticles templated on polymer chains dissolved in solution at high yield. The monodispersity is achieved due to the beaded necklace morphology of the polyelectrolyte chains in solution where the beads are nanometer-scale nodules in the polymer chain. The resultant structure is a nanoparticles studded necklace where [...]

Optimized Method for Preparation of TiO2 Nanoparticles Dispersion for Biological Study

The objective of this study was to develop a practical method to prepare a stable dispersion of TiO2 nanoparticles for biological studies. TiO2 (rutile/anatase) dispersions were prepared in distilled water following by treated with different ultrasound energies and various dispersion stabilizers.Journal of Nanoscience and Nanotechnology, 10(8): 5213-5219 (August 2010)
International Council on Nanotechnology, Rice University – [...]

Helios propulsion system (using 0.1KT nukes as space propulsion system)?

from http://en.wikipedia.org/wiki/Helios_(propulsion_system) “However, a number of technical problems existed, most prominently how to keep the combustion chamber from exploding from the great pressures of the atomic detonations.” They were thinking about this way back in 1947 and i’m sure in the 80’s, but now in 2009 I was thinking that something like nanotubes, carbon fiber, [...]

any help would be great an easy ten points?

i need to make a poster on the properties, structure and uses of each of the following allotropes of carbon: diamond, graphite, fullerenes and nanotubes.
any help would be great thank you

some CNT questions…?

answer any or all to your liking?
selective functionalization? by this I mean methods for preparing say tetra substituted carbon nanotubes in good yields (good for fullerenes is like 40%), rather than obtaining a statistical mixture?
processing developments? I was under the impression that one step in the bulk production of CNTs involved an acid [...]

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