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Updated: Aug 3, 2026

Preparation and Characterization of C60/Graphene Hybrid Nanostructures
Published on: May 15, 2018
Coadsorption of guanine and cytosine on graphite: ordered structure based on GC pairing
Sailong Xu1, Mingdong Dong, Eva Rauls
1Interdisciplinary Nanoscience Center (iNANO) and Department of Physics and Astronomy, University of Aarhus, Denmark.
Abstract:
Nanostructures formed by coadsorption of the complementary DNA bases guanine (G) and cytosine (C) at a graphite surface in 1-octanol solvent were investigated by in situ scanning tunneling microscopy. The high-resolution observations showed for the first time a well-ordered coadsorption structure, attributed to rows formed from Watson-Crick G-C pairs, which was distinctly different from the structures observed for the individual G/C components. The observed coadsorption structure has been modeled by self-consistent charge density-functional-based tight-binding (SCC-DFTB) calculations, providing information on the intermolecular interactions underlying its formation.
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