Dielectrophoresis of nanoscale double-stranded DNA and humidity effects on its electrical conductivity

S. Tuukkanen; A. Kuzyk; J. J. Toppari; V. P. Hytönen; T. Ihalainen; P. Törmä

doi:10.1063/1.2117626

Dielectrophoresis of nanoscale double-stranded DNA and humidity effects on its electrical conductivity

S. Tuukkanen^*, A. Kuzyk, J. J. Toppari, V. P. Hytönen, T. Ihalainen, P. Törmä

^*Corresponding author for this work

Not published at Aalto University

University of Jyväskylä

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

73 Citations (Scopus)

Abstract

The dielectrophoresis method for trapping and attaching nanoscale double-stranded DNA between nanoelectrodes was developed. The method gives a high yield of trapping single or a few molecules only which enables transport measurements at the single molecule level. Electrical conductivity of individual 140-nm -long DNA molecules was measured, showing insulating behavior in dry conditions. In contrast, clear enhancement of conductivity was observed in moist conditions, relating to the interplay between the conformation of DNA molecules and their conductivity.

Original language	English
Article number	183102
Pages (from-to)	1-3
Number of pages	3
Journal	Applied Physics Letters
Volume	87
Issue number	18
DOIs	https://doi.org/10.1063/1.2117626
Publication status	Published - 31 Oct 2005
MoE publication type	A1 Journal article-refereed

Access to Document

10.1063/1.2117626

Cite this

@article{b8f666bb8f9a4857a99c9ea6bf138919,

title = "Dielectrophoresis of nanoscale double-stranded DNA and humidity effects on its electrical conductivity",

abstract = "The dielectrophoresis method for trapping and attaching nanoscale double-stranded DNA between nanoelectrodes was developed. The method gives a high yield of trapping single or a few molecules only which enables transport measurements at the single molecule level. Electrical conductivity of individual 140-nm -long DNA molecules was measured, showing insulating behavior in dry conditions. In contrast, clear enhancement of conductivity was observed in moist conditions, relating to the interplay between the conformation of DNA molecules and their conductivity.",

author = "S. Tuukkanen and A. Kuzyk and Toppari, {J. J.} and Hyt{\"o}nen, {V. P.} and T. Ihalainen and P. T{\"o}rm{\"a}",

year = "2005",

month = oct,

day = "31",

doi = "10.1063/1.2117626",

language = "English",

volume = "87",

pages = "1--3",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

number = "18",

}

TY - JOUR

T1 - Dielectrophoresis of nanoscale double-stranded DNA and humidity effects on its electrical conductivity

AU - Tuukkanen, S.

AU - Kuzyk, A.

AU - Toppari, J. J.

AU - Hytönen, V. P.

AU - Ihalainen, T.

AU - Törmä, P.

PY - 2005/10/31

Y1 - 2005/10/31

N2 - The dielectrophoresis method for trapping and attaching nanoscale double-stranded DNA between nanoelectrodes was developed. The method gives a high yield of trapping single or a few molecules only which enables transport measurements at the single molecule level. Electrical conductivity of individual 140-nm -long DNA molecules was measured, showing insulating behavior in dry conditions. In contrast, clear enhancement of conductivity was observed in moist conditions, relating to the interplay between the conformation of DNA molecules and their conductivity.

AB - The dielectrophoresis method for trapping and attaching nanoscale double-stranded DNA between nanoelectrodes was developed. The method gives a high yield of trapping single or a few molecules only which enables transport measurements at the single molecule level. Electrical conductivity of individual 140-nm -long DNA molecules was measured, showing insulating behavior in dry conditions. In contrast, clear enhancement of conductivity was observed in moist conditions, relating to the interplay between the conformation of DNA molecules and their conductivity.

UR - http://www.scopus.com/inward/record.url?scp=27344438001&partnerID=8YFLogxK

U2 - 10.1063/1.2117626

DO - 10.1063/1.2117626

M3 - Article

AN - SCOPUS:27344438001

SN - 0003-6951

VL - 87

SP - 1

EP - 3

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 18

M1 - 183102

ER -

Dielectrophoresis of nanoscale double-stranded DNA and humidity effects on its electrical conductivity

Abstract

Access to Document

Other files and links

Fingerprint

Cite this