DNA origami impedance measurement at room temperature

Alfredo D. Bobadilla; Edson P. Bellido; Norma L. Rangel; Hong Zhong; Michael L. Norton; Alexander Sinitskii; Jorge M. Seminario

doi:10.1063/1.3127362

DNA origami impedance measurement at room temperature

Alfredo D. Bobadilla, Edson P. Bellido, Norma L. Rangel, Hong Zhong, Michael L. Norton, Alexander Sinitskii, Jorge M. Seminario

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

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.

Original language	English (US)
Article number	171101
Journal	Journal of Chemical Physics
Volume	130
Issue number	17
DOIs	https://doi.org/10.1063/1.3127362
State	Published - 2009
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy
Physical and Theoretical Chemistry

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title = "DNA origami impedance measurement at room temperature",

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.",

author = "Bobadilla, {Alfredo D.} and Bellido, {Edson P.} and Rangel, {Norma L.} and Hong Zhong and Norton, {Michael L.} and Alexander Sinitskii and Seminario, {Jorge M.}",

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T1 - DNA origami impedance measurement at room temperature

AU - Bobadilla, Alfredo D.

AU - Bellido, Edson P.

AU - Rangel, Norma L.

AU - Zhong, Hong

AU - Norton, Michael L.

AU - Sinitskii, Alexander

AU - Seminario, Jorge M.

N1 - Funding Information: This work has been supported by the Defense Threat Reduction Agency through the Army Research Office (ARO).

PY - 2009

Y1 - 2009

N2 - 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.

AB - 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.

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DNA origami impedance measurement at room temperature

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