Journal
PHYSICAL REVIEW LETTERS
Volume 110, Issue 25, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.110.255501
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Funding
- Swiss National Science Foundation (SNF)
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We have imaged a freestanding graphene sheet of 210 nm in diameter with 2 angstrom resolution by combining coherent diffraction and holography with low-energy electrons. The entire sheet is reconstructed from a single diffraction pattern displaying the arrangement of 660.000 individual graphene unit cells at once. Given the fact that electrons with kinetic energies of the order of 100 eV do not damage biological molecules, it will now be a matter of developing methods for depositing individual proteins onto such graphene sheets.
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