What are nanotubes?

Some articles on nanotubes:

Tungsten(IV) Sulfide - Nanotubes
... Tungsten disulfide is the first material which was found to form inorganic nanotubes, in 1992 ... Apart from scientific interest, these nanotubes are studied for potential applications ... The addition of WS2 nanotubes to epoxy resin improves adhesion, fracture toughness and strain energy release rate ...
Selective Chemistry Of Single-walled Nanotubes - Structure and Reactivity
... See also Optical properties of carbon nanotubes Reactivity of fullerene molecules with respect to addition chemistries is strongly dependent on the curvature of the carbon framework ... In comparison with fullerene molecules single-walled nanotubes (SWNTs) are moderately curved ... Consequently nanotubes are expected to be less reactive than most fullerene molecules due to their smaller curvature, but more reactive than a graphene sheet due to ...
Societal Impact Of Nanotechnology - Intellectual Property Issues
... corporations, NEC and IBM, hold the basic patents on carbon nanotubes, one of the current cornerstones of nanotechnology ... Carbon nanotubes have a wide range of uses, and look set to become crucial to several industries from electronics and computers, to strengthened materials to drug delivery and diagnostics ... Carbon nanotubes are poised to become a major traded commodity with the potential to replace major conventional raw materials ...
Covalent Superconductor - Carbon Nanotubes
... While there have been reports of intrinsic superconductivity in carbon nanotubes, many other experiments found no evidence of superconductivity, and the validity of these results remains a subject of debate ... Note, however, a crucial difference between nanotubes and diamond Although nanotubes contain covalently bonded carbon atoms, they are closer in properties to graphite than diamond, and can be metallic without ...
Selective Chemistry Of Single-walled Nanotubes - Chemical Separation of Metallic and Semiconducting SWNTs
... Metallic and semiconducting carbon nanotubes generally coexist in as-grown materials ... To get only semiconducting or only metallic nanotubes selective functionalization of metallic SWNTs via 4-hydroxybenzene diazonium can be used ... be done in solution by deprotonation of the p-hydroxybenzene group on the reacted nanotubes (metallic) in alkaline solution followed by electrophoretic ...