pictos_nano_animations  pictos_nano_videos  pictos_nano_cartoons  pictos_nano_quiz
 animations  videos  cartoons  quiz

Nano ?


Nano-objects (particles, fibers, plates, tubes,...) are entities with at least one dimension is smaller than 100 nanometers. These entities are the basis for the formation of nano-structured materials on the surface or in volume. They are passive or active as nanodevices. This website deals the risks associated with nanomaterials without covering the wider field of nanotechnologies.
Cartoons Episode 1

Internal zoom in a carbon nanotube.

From a 1 to 5 nanometers section for a few micrometers length, carbon nanotubes are a cylindrical crystal structure of carbon. Discovered by SumioIjima in 1991 after the discovery of fullerenes in 1985 by Harold Kroto, Robert Curl and Richard Smalley (1996 Nobel prize in Chemistry).

Mono-partition or multi-partitions, they have both an excellent rigidity (comparable to that of steel), while being extremely mild. From an electrical and optical point of view, the single-walled nanotubes have the quite outstanding peculiarity that they can be either metallic or semiconductor depending on their geometry.