References and Notes

a reduced threshold voltage upon reimmer-sion. Electrowetting is by definition an attract-ive interaction between mercury and SWNT and, thus, the force required to pull a SWNT off a mercury surface should be larger in an activated state than that of a nonactivated state (36). Electrowetting in carbon nanotubes may offer opportunities for studies of nanofluidic transport. It can also be exploited for the formation of continuous nanowires crystallized in one dimension from low–melting point metals (e.g., Ga and In), enabling the mea-surement of the intrinsic electrical and mag-netic properties of encapsulated nanowires. Such structures, attached to AFM tips, could serve as robust nanoelectrode probes with increased current load capacity and enhanced imaging capabilities