Abstract
DNA has long been viewed as a promising material for nanoscale electronics, in part due to its well-ordered arrangement of stacked, pi-conjugated base pairs. Within this context, a number of studies have investigated how structural changes, backbone modifications, or artificial base substitutions affect the conductivity of DNA. Herein, we present a comparative study of the electrical properties of both well-matched and perylene-3,4,9,10-tetracarboxylic diimide (PTCDI)-containing DNA molecular wires that bridge nanoscale gold electrodes. By performing current-voltage measurements for such devices, we find that the incorporation of PTCDI DNA base surrogates within our macromolecular constructs leads to an approximately 6-fold enhancement in the observed current levels. Together, these findings suggest that PTCDI DNA base surrogates may enable the preparation of designer DNA-based nanoscale electronic components.
Original language | English (US) |
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Pages (from-to) | 416-419 |
Number of pages | 4 |
Journal | ChemPlusChem |
Volume | 84 |
Issue number | 4 |
DOIs | |
State | Published - Apr 2019 |
Externally published | Yes |
Keywords
- PTCDI
- bioelectronics
- charge transport
- nanoscale devices
- nanotechnology
ASJC Scopus subject areas
- Chemistry(all)