Abstract
We present a novel transport measurement of 60 base pairs of poly(dG)-poly(dC) DNA molecules. Thiol-terminated DNA molecules are chemically anchored at the surface of a Au nanoparticle and this DNA attached Au nanoparticle is self-trapped in between Au nanoelectrodes to make an electrical conduction channel. It provides an automatic electrical conduction channel consisting of electrode-DNA-nanoparticle-DNA-electrode. Due to robust bonding of thiol and Au, this transport channel is stable and reliable. The current-voltage characteristics measured from our device show a nonlinear behavior with voltage gaps comparable to previous experiment using the same molecules.
Original language | English |
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Pages (from-to) | 433-438 |
Number of pages | 6 |
Journal | Superlattices and Microstructures |
Volume | 34 |
Issue number | 3-6 |
DOIs | |
State | Published - Sep 2003 |
Keywords
- DNA
- Electrical conduction
- Molecule
- Nano-gap
- Thiol