| Abstract
| - Multiwall carbon nanotubes (CNTs) have been assembled on various types of colloidal templates usingthe well-known polyelectrolyte-assisted layer-by-layer (LBL) assembly technique. Dense mono- andmultilayers of CNTs were successfully deposited on silica, polystyrene, and melamine spherical colloidsof different size, showing that relatively short CNTs completely wrap the surface of the spheres, whilelong nanotubes stick out of the surface, allowing them to contact various spheres at the same time.Decomposition of the colloidal template leads to formation of hollow CNT spheres, which wasdemonstrated through treatment of melamine@CNT particles with HCl. The deposition was also carriedout on ordered arrays of polystyrene particles, leading to nanostructured, conducting CNT assemblies.Rupture of the assemblies with ultrasound shows that the assembly only takes place on one-half of thecolloid spheres, so that “Janus” particles with asymmetric functionalities can be easily prepared.
- Multiwall carbon nanotubes were assembled by the LBL method on various colloidal templates forming conducting composites, which can lead to hollow carbon nanotube capsules through core removal. A similar procedure was also applied to ordered monolayers, which not only provided nanostructured, conducting thin films, but also asymmetric colloids upon sonication.
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