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|Title: ||High Electronic Conductance through Double-Helix DNA Molecules with Fullerene Anchoring Groups|
|Authors: ||Jiménez Monroy, Kathia|
van Haesendonck, Christian
Manca, Jean V.
Siebbeles, Laurens D. A.
Grozema, Ferdinand C.
|Issue Date: ||2017|
|Citation: ||The journal of physical chemistry. A, 121(6), p. 1182-1188|
|Abstract: ||Determining the mechanism of charge transport through native DNA remains a challenge as different factors such as measuring conditions, molecule conformations, and choice of technique can significantly affect the final results. In this contribution, we have used a new approach to measure current flowing through isolated double-stranded DNA molecules, using fullerene groups to anchor the DNA to a gold substrate. Measurements were performed at room temperature in an inert environment using a conductive AFM technique. It is shown that the π-stacked B-DNA structure is conserved on depositing the DNA. As a result, currents in the nanoampere range were obtained for voltages ranging between ±1 V. These experimental results are supported by a theoretical model that suggests that a multistep hopping mechanism between delocalized domains is responsible for the long-range current flow through this specific type of DNA.|
|Notes: ||Jimenez-Monroy, KL (reprint author), Hasselt Univ, IMO IMOMEC, Campus Diepenbeek,Wetenschapspk 1, B-3590 Diepenbeek, Belgium.
|ISI #: ||000394482500003|
|Type: ||Journal Contribution|
|Appears in Collections: ||Research publications|
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|Published version - Main article||2.43 MB||Adobe PDF|
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