"Quantum Water" Discovered in Carbon Nanotubes - Technology Review: "Reiter and co say they have measured the properties of confined in the tiny space inside carbon nanotubes at room temperature and found some important differences. They've done this by filling nanotubes with water and bombarding them with an intense beam of neutrons at the Rutherford Appleton Lab in the UK. The way the neutrons scatter reveals the momentum of the protons inside the nanotubes.
It turns out that the protons in this nano-confined water at room temperature behave in an entirely different way to those in bulk water. Protons are known to be sensitive to the electronic fields around them. So when these fields form into unusual electronic networks, it's no surprise the protons behave differently."