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Carbohydrate Self‐Assembly at Surfaces: STM Imaging of Sucrose Conformation and Ordering on Cu(100)
Author(s) -
Abb Sabine,
Tarrat Nathalie,
Cortés Juan,
Andriyevsky Bohdan,
Harnau Ludger,
Schön J. Christian,
Rauschenbach Stephan,
Kern Klaus
Publication year - 2019
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201901340
Subject(s) - disaccharide , scanning tunneling microscope , biomolecule , chemistry , self assembly , sucrose , molecule , crystallography , carbohydrate , mass spectrometry , biophysics , nanotechnology , stereochemistry , materials science , organic chemistry , biochemistry , chromatography , biology
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.