According to one embodiment an apparatus includes a membrane and at least a portion of a nanotube imbedded within the membrane. The portion of the nanotube imbedded within the membrane provides a conduit through the membrane.
The work described in this patent application was developed under National Science Foundation grants CHE-9796203 and CHE-9818302 and Department of Energy contract No. DE-FG03-01ER15247. The U.S. Government may have certain rights in this patent application.