  Modern microscopy techniques are aimed at imaging an individual molecule at
atomic resolution. Here we show that low-energy electrons with kinetic energies
of 50-250 eV offer a possibility of overcome the problem of radiation damage,
and obtaining images of individual biomolecules. Two experimental schemes for
obtaining images of individual molecules, holography and coherent diffraction
imaging, are discussed and compared. Images of individual molecules obtained by
both techniques, using low-energy electrons, are shown.

Biological Physics;Instrumentation and Detectors;Biomolecules