Nanotube

A nanotube is a nanometer-scale hollow tube-like structure.

Kinds of nanotubes

 * BCN nanotube, composed of comparable amounts of boron, carbon, and nitrogen atoms
 * Boron nitride nanotube, a polymorph of boron nitride
 * Carbon nanotube, includes general nanotube terminology and diagrams
 * DNA nanotube, a two-dimensional lattice which curves back upon itself, somewhat similar in size and shape to a carbon nanotube
 * Gallium nitride nanotube, a nanotube of gallium nitride
 * Silicon nanotube, made of silicon atoms
 * Non-carbon nanotube, especially tungsten(IV) sulfide nanotubes
 * Tunneling nanotube, a tubular membrane connection between cells
 * Titanium nanotubes, created by the conversion of the mineral anatase by hydrothermal synthesis

Nanotubes builders

 * Chiraltube. Atomistic builder for any nanotubes with any chirality from any 2D material.
 * TubeASP. For carbon nanotubes.
 * Nanotuve Modeler. For carbon nanotubes only.