Distance-dependent charge transfer mechanism in adenine bridging DNA sequences

Heeyoung Kim, Eun Ji Sim

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Long-range DNA charge transfer process has been investigated on 5′-G(A)nG3-3′ sequences by varying the number of adenine bridging base pairs. The charge transfer mechanism was determined based on density matrix decomposition path integration and trajectory analysis. The density matrix decomposition path integral formalism provides relative contribution of possible CT mechanisms such as incoherent hopping, coherent through-bridge, and superexchange mechanism. Quantitative determination of the degree-of-coherence in terms of the coherence length is useful in specifying the through-bridge mechanism, since it indicates the subset of states which forms a coherent collective state. In addition, trajectory analysis was performed to provide detailed description of the coherence propagation between distant states.

Original languageEnglish
JournalCurrent Applied Physics
Volume9
Issue number4 SUPPL.
DOIs
Publication statusPublished - 2009 Jul 1

Fingerprint

DNA sequences
adenines
Adenine
Charge transfer
deoxyribonucleic acid
charge transfer
trajectory analysis
Trajectories
Decomposition
decomposition
DNA
set theory
formalism
propagation

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Physics and Astronomy(all)

Cite this

@article{1cb0b9caa6c348f4bf26f7c9ce143320,
title = "Distance-dependent charge transfer mechanism in adenine bridging DNA sequences",
abstract = "Long-range DNA charge transfer process has been investigated on 5′-G(A)nG3-3′ sequences by varying the number of adenine bridging base pairs. The charge transfer mechanism was determined based on density matrix decomposition path integration and trajectory analysis. The density matrix decomposition path integral formalism provides relative contribution of possible CT mechanisms such as incoherent hopping, coherent through-bridge, and superexchange mechanism. Quantitative determination of the degree-of-coherence in terms of the coherence length is useful in specifying the through-bridge mechanism, since it indicates the subset of states which forms a coherent collective state. In addition, trajectory analysis was performed to provide detailed description of the coherence propagation between distant states.",
author = "Heeyoung Kim and Sim, {Eun Ji}",
year = "2009",
month = "7",
day = "1",
doi = "10.1016/j.cap.2009.05.024",
language = "English",
volume = "9",
journal = "Current Applied Physics",
issn = "1567-1739",
publisher = "Elsevier",
number = "4 SUPPL.",

}

Distance-dependent charge transfer mechanism in adenine bridging DNA sequences. / Kim, Heeyoung; Sim, Eun Ji.

In: Current Applied Physics, Vol. 9, No. 4 SUPPL., 01.07.2009.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Distance-dependent charge transfer mechanism in adenine bridging DNA sequences

AU - Kim, Heeyoung

AU - Sim, Eun Ji

PY - 2009/7/1

Y1 - 2009/7/1

N2 - Long-range DNA charge transfer process has been investigated on 5′-G(A)nG3-3′ sequences by varying the number of adenine bridging base pairs. The charge transfer mechanism was determined based on density matrix decomposition path integration and trajectory analysis. The density matrix decomposition path integral formalism provides relative contribution of possible CT mechanisms such as incoherent hopping, coherent through-bridge, and superexchange mechanism. Quantitative determination of the degree-of-coherence in terms of the coherence length is useful in specifying the through-bridge mechanism, since it indicates the subset of states which forms a coherent collective state. In addition, trajectory analysis was performed to provide detailed description of the coherence propagation between distant states.

AB - Long-range DNA charge transfer process has been investigated on 5′-G(A)nG3-3′ sequences by varying the number of adenine bridging base pairs. The charge transfer mechanism was determined based on density matrix decomposition path integration and trajectory analysis. The density matrix decomposition path integral formalism provides relative contribution of possible CT mechanisms such as incoherent hopping, coherent through-bridge, and superexchange mechanism. Quantitative determination of the degree-of-coherence in terms of the coherence length is useful in specifying the through-bridge mechanism, since it indicates the subset of states which forms a coherent collective state. In addition, trajectory analysis was performed to provide detailed description of the coherence propagation between distant states.

UR - http://www.scopus.com/inward/record.url?scp=71849094348&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=71849094348&partnerID=8YFLogxK

U2 - 10.1016/j.cap.2009.05.024

DO - 10.1016/j.cap.2009.05.024

M3 - Article

VL - 9

JO - Current Applied Physics

JF - Current Applied Physics

SN - 1567-1739

IS - 4 SUPPL.

ER -