Beilstein J. Nanotechnol.2014,5, 501–506, doi:10.3762/bjnano.5.58
of studies, pyrene and 1-pyrenemethylamine, were evaluated as surface modifications which might mitigate this effect. While both species were found to form adsorption layers on MoS2 via physisorption, 1-pyrenemethylamine serves as a better protective agent and preserves the structures for
significantly longer times. These findings will be beneficial for the fabrication of future DNA origami/MoS2 hybrid electronic structures.
Keywords: atomic force microscopy (AFM); DNA origami; molybdenum disulfide (MoS2); pyrene; 1-pyrenemethylamine; surface modification; Introduction
Since it was first
reported below for the first time. An unanticipated observation was that DNA origami structures decompose on contacting the MoS2 surface. However, the shape of DNA origami constructs can be preserved with the aid of an adhesion layer composed of either pyrene or 1-pyrenemethylamine. It is expected that
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Figure 1:
Schematic illustration representing (a) self-assembly of M13 plasmid (dark blue) and staple strands...