DNA origami impedance measurement at room temperature
- 1 May 2009
- journal article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 130 (17), 171101
- https://doi.org/10.1063/1.3127362
Abstract
The frequency response of triangular DNA origami is obtained at room temperature. The sample shows a high impedance at low frequencies, e.g., at zero frequency 20 GΩ, which decreases almost linearly with the logarithm of the frequency reaching a low and flat value at 100 kHz where the impedance turns from capacitive to resistive, concluding that DNA can be used for transmission of signals at frequencies larger than 100 kHz. It is also found that characteristics of DNA cannot be completely disentangled from the characteristics of the substrate on which it is deposited, making the design of molecular circuits more challenging than the design of circuits with present lumped devices; this is a natural feature at the nanoscale.Keywords
This publication has 16 references indexed in Scilit:
- Chapter 4 Analysis of programmable molecular electronic systemsPublished by Elsevier BV ,2007
- An Overview of Structural DNA NanotechnologyMolecular Biotechnology, 2007
- Folding DNA to create nanoscale shapes and patternsNature, 2006
- Ab initio analysis of electron currents in thioalkanesInternational Journal of Quantum Chemistry, 2004
- Nanometer-Size Conducting and Insulating Molecular DevicesThe Journal of Physical Chemistry B, 2004
- A 1.7-kilobase single-stranded DNA that folds into a nanoscale octahedronNature, 2004
- Self-Assembled Circuit PatternsLecture Notes in Computer Science, 2004
- Electrical Conduction through Poly(dA)-Poly(dT) and Poly(dG)-Poly(dC) DNA MoleculesPhysical Review Letters, 2001
- Sensing and amplification of oligonucleotide-DNA interactions by means of impedance spectroscopy: a route to a Tay–Sachs sensorChemical Communications, 1999
- Synthesis from DNA of a molecule with the connectivity of a cubeNature, 1991