(693f) Advanced Separation of Empty and Water-Filled Nanotubes

Water-filling of open-ended nanotubes has recently been shown to dramatically affect the properties of the nanotubes in solution (Fagan et al. ACS NANO 2011).  Here we will present strategies for the fine separation of empty and water-filled populations from mixed solutions and the effects of scaling up the processes to yield multiple milligrams/run of separated material.  The separated populations are furthermore demonstrated to behave differently during subsequent purification on the basis of chirality and electronic type.  Examples of the improved and altered properties of the empty and water-filled nanotubes will be given, and the resulting implications discussed.