This is a tapping mode AFM image
of a bundle of carbon nanotubes collected using the Digital
Instruments Multimode AFM. Courtesy of Marko Radosavljevic,
Dept. of Physics, University of Pennsylvania.
PENN
Regional Nanotechnology Facility
University of Pennsylvania / 3231 Walnut Street / Philadelphia PA 19104
/ prnf@seas.upenn.edu / 215.898.8718