Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 134, Issue 15, Pages 6579-6583Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja302530q
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Funding
- CNRS
- Synchrotron SOLEIL
- French Agence Nationale de la Recheche (ANR) [Reactgold ANR 07-NANO-024-01]
- GENCI-CINES/IDRIS [2012-x2011082022]
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Adsorption of biomolecules at metal surfaces often creates two-dimensional ordering of the adlayers. However, metal substrate reconstruction is less commonly observed, unless upon annealing of the molecule-surface system. Here, we report on the drastic room-temperature reconstruction of the Au(111) surface, driven by the adsorption of insulin growth factor tripeptide molecules. Scanning tunneling microscopy images show that the surface reconstruction, which takes place without annealing the system, is dynamic and evolves over time. It is initiated at kinks and steps edges, but the reconstruction also takes place within defect-free terraces. Theoretical calculations are performed to explain the reconstruction at the molecular level.
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