Research on the transport behavior of water in the deformed carbon nanotubes

The transport behavior of water though the carbon nanotubes play an important role for understanding the metabolic activity in the life, desalination and nano-transport devices. The aim of this paper is to investigate the transport behavior of water in the deformed carbon nanotubes, namely the ellipse ratio of elliptic carbon nanotubes effect on transport behaviors, by molecular dynamic simulation. It is found that the ellipse ratio has great influence on the probability distribution of dipole, the radial distribution function and the permeation. It is shown that the deformed carbon nanotubes can change the dipole moment state and transport status of water in carbon nanotubes. It is also found that carbon nanotubes can as an on-off of molecules by change there shape in certain range. (authors)