  As a complementary tool to nanofluidics, biomolecular based transport is
envisioned for nanotechnological devices. We report a new method for guiding
microtubule shuttles on multi-walled carbon nanotube tracks, aligned by
dielectrophoresis on a functionalized surface. In the absence of electric field
and in fluid flow, alignment is maintained. The directed translocation of
kinesin propelled microtubules has been investigated using fluorescence
microscopy. To our knowledge, this is the first demonstration of microtubules
gliding along carbon nanotubes.
