Replication of single macromolecules with graphene.
Nano Lett
; 11(6): 2436-9, 2011 Jun 08.
Article
de En
| MEDLINE
| ID: mdl-21574589
ABSTRACT
The electronic properties of graphenes depend sensitively on their deformation, and therefore strain engineered graphene electronics is envisioned. In order to deform graphenes locally, we have mechanically exfoliated single and few layer graphenes onto atomically flat mica surfaces covered with isolated double stranded plasmid DNA rings. Using scanning force microscopy in both contact and intermittent contact modes, we find that the graphenes replicate the topography of the underlying DNA with high precision. The availability of macromolecules of different topologies, e.g., programmable DNA patterns, render this approach promising for new graphene based device designs. On the other hand, the encapsulation of single macromolecules offers new prospects for analytical scanning probe microscopy techniques.
Texte intégral:
1
Collection:
01-internacional
Base de données:
MEDLINE
Sujet principal:
ADN
/
Graphite
Langue:
En
Journal:
Nano Lett
Année:
2011
Type de document:
Article
Pays d'affiliation:
Allemagne