Effect of helix angles on polaron motion in poly-DNA

Zhen Qu; Da wei Kang; Yuan Li; Wen Liu; De sheng Liu; Shi jie Xie

doi:10.1016/j.physleta.2008.07.072

Effect of helix angles on polaron motion in poly-DNA

Zhen Qu, Da wei Kang, Yuan Li, Wen Liu, De sheng Liu, Shi jie Xie^*

^*Corresponding author for this work

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

6 Scopus citations

Abstract

We investigate the effect of helix angles on polaron motion in poly-DNA in the framework of a tight binding model. A DNA molecule is supposed to have a uniform or a random distribution of the helix angles. It is found that a polaron moves faster along a DNA molecule with an overwinding helix than that with an unwinding one. In DNA molecule with randomly distributed helix angles, charge transport is suggested to be field-facilitated tunneling between spatial disordered potential wells.

Original language	English (US)
Pages (from-to)	6013-6018
Number of pages	6
Journal	Physics Letters, Section A: General, Atomic and Solid State Physics
Volume	372
Issue number	38
DOIs	https://doi.org/10.1016/j.physleta.2008.07.072
State	Published - Sep 15 2008
Externally published	Yes

Keywords

Helix angle
Polaron motion
Poly-DNA

ASJC Scopus subject areas

General Physics and Astronomy

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10.1016/j.physleta.2008.07.072

Cite this

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title = "Effect of helix angles on polaron motion in poly-DNA",

abstract = "We investigate the effect of helix angles on polaron motion in poly-DNA in the framework of a tight binding model. A DNA molecule is supposed to have a uniform or a random distribution of the helix angles. It is found that a polaron moves faster along a DNA molecule with an overwinding helix than that with an unwinding one. In DNA molecule with randomly distributed helix angles, charge transport is suggested to be field-facilitated tunneling between spatial disordered potential wells.",

keywords = "Helix angle, Polaron motion, Poly-DNA",

author = "Zhen Qu and Kang, {Da wei} and Yuan Li and Wen Liu and Liu, {De sheng} and Xie, {Shi jie}",

year = "2008",

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doi = "10.1016/j.physleta.2008.07.072",

language = "English (US)",

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journal = "Physics Letters, Section A: General, Atomic and Solid State Physics",

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T1 - Effect of helix angles on polaron motion in poly-DNA

AU - Qu, Zhen

AU - Kang, Da wei

AU - Li, Yuan

AU - Liu, Wen

AU - Liu, De sheng

AU - Xie, Shi jie

PY - 2008/9/15

Y1 - 2008/9/15

N2 - We investigate the effect of helix angles on polaron motion in poly-DNA in the framework of a tight binding model. A DNA molecule is supposed to have a uniform or a random distribution of the helix angles. It is found that a polaron moves faster along a DNA molecule with an overwinding helix than that with an unwinding one. In DNA molecule with randomly distributed helix angles, charge transport is suggested to be field-facilitated tunneling between spatial disordered potential wells.

AB - We investigate the effect of helix angles on polaron motion in poly-DNA in the framework of a tight binding model. A DNA molecule is supposed to have a uniform or a random distribution of the helix angles. It is found that a polaron moves faster along a DNA molecule with an overwinding helix than that with an unwinding one. In DNA molecule with randomly distributed helix angles, charge transport is suggested to be field-facilitated tunneling between spatial disordered potential wells.

KW - Helix angle

KW - Polaron motion

KW - Poly-DNA

UR - http://www.scopus.com/inward/record.url?scp=50149090018&partnerID=8YFLogxK

U2 - 10.1016/j.physleta.2008.07.072

DO - 10.1016/j.physleta.2008.07.072

M3 - Article

AN - SCOPUS:50149090018

SN - 0375-9601

VL - 372

SP - 6013

EP - 6018

JO - Physics Letters, Section A: General, Atomic and Solid State Physics

JF - Physics Letters, Section A: General, Atomic and Solid State Physics

IS - 38

ER -

Effect of helix angles on polaron motion in poly-DNA

Abstract

Keywords

ASJC Scopus subject areas

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