Electrical conduction measurement of thiol modified DNA molecules

J. S. Hwang; S. W. Hwang; D. Ahn

doi:10.1016/j.spmi.2004.03.064

Electrical conduction measurement of thiol modified DNA molecules

J. S. Hwang, S. W. Hwang, D. Ahn

School of Electrical and Computer Engineering

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

20 Scopus citations

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
Pages (from-to)	433-438
Number of pages	6
Journal	Superlattices and Microstructures
Volume	34
Issue number	3-6
DOIs	https://doi.org/10.1016/j.spmi.2004.03.064
State	Published - Sep 2003

Keywords

DNA
Electrical conduction
Molecule
Nano-gap
Thiol

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10.1016/j.spmi.2004.03.064

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title = "Electrical conduction measurement of thiol modified DNA molecules",

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.",

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AU - Hwang, J. S.

AU - Hwang, S. W.

AU - Ahn, D.

PY - 2003/9

Y1 - 2003/9

N2 - 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.

AB - 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.

KW - DNA

KW - Electrical conduction

KW - Molecule

KW - Nano-gap

KW - Thiol

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M3 - Article

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VL - 34

SP - 433

EP - 438

JO - Superlattices and Microstructures

JF - Superlattices and Microstructures

IS - 3-6

ER -

Electrical conduction measurement of thiol modified DNA molecules

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Keywords

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