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Saccharides are ubiquitous biomolecules, but little is known about their interaction with, and assembly at, surfaces. By combining preparative mass spectrometry with scanning tunneling microscopy, we have been able to address the conformation and self-assembly of the disaccharide sucrose on a Cu(100) surface with subunit-level imaging. By employing a multistage modeling approach in combination with the experimental data, we can rationalize the conformation on the surface as well as the interactions between the sucrose molecules, thereby yielding models of the observed self-assembled patterns on the surface.
Harald Brune, Stefano Rusponi, Sergio Vlaic, Dimitrios Mousadakos
Christian Wäckerlin, Ulrich Aschauer, Xing Wang, Mehdi Heydari
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