Charge Transfer in DNA: The Role of Large Polarons
Apstrakt
Polaronic mechanism of charge transfer in DNA is considered on the basis of one-dimensional Su-Schrieffer-Heeger (SSH) model Hamiltonian. It is shown that usually used values of SSH model Hamiltonian parameters, especially transfer integral and electron-phonon coupling constant which are obtained in the framework of ab initio calculations, do not give reliable resolution of the problem of (large) polaron applicability for charge migration in DNA. Because of that, theoretical method is proposed which enables us to estimate explicitly electron-phonon coupling constant on the basis of transfer integral. The value of polaron width obtained for such determined parameters leads to the conclusion that coherent motion of large polaron represents dominant mechanism of charge transfer in DNA.
Izvor:
Journal of Physics: Conference Series, 2011, 329Finansiranje / projekti:
- Fotonika mikro i nano strukturnih materijala (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45010)
Napomena:
- 9th International Frohlichs Symposium on Electrodynamic Activity of Living Cells - Including Microtubule Coherent Modes and Cancer Cell Physics, Jul 01-03, 2011, Prague, Czech Republic
DOI: 10.1088/1742-6596/329/1/012015
ISSN: 1742-6588
WoS: 000300166500015
Scopus: 2-s2.0-84859534538
Kolekcije
Institucija/grupa
VinčaTY - CONF AU - Zeković, Slobodan AU - Zdravković, Slobodan AU - Ivić, Zoran PY - 2011 UR - https://vinar.vin.bg.ac.rs/handle/123456789/6942 AB - Polaronic mechanism of charge transfer in DNA is considered on the basis of one-dimensional Su-Schrieffer-Heeger (SSH) model Hamiltonian. It is shown that usually used values of SSH model Hamiltonian parameters, especially transfer integral and electron-phonon coupling constant which are obtained in the framework of ab initio calculations, do not give reliable resolution of the problem of (large) polaron applicability for charge migration in DNA. Because of that, theoretical method is proposed which enables us to estimate explicitly electron-phonon coupling constant on the basis of transfer integral. The value of polaron width obtained for such determined parameters leads to the conclusion that coherent motion of large polaron represents dominant mechanism of charge transfer in DNA. C3 - Journal of Physics: Conference Series T1 - Charge Transfer in DNA: The Role of Large Polarons VL - 329 DO - 10.1088/1742-6596/329/1/012015 ER -
@conference{ author = "Zeković, Slobodan and Zdravković, Slobodan and Ivić, Zoran", year = "2011", abstract = "Polaronic mechanism of charge transfer in DNA is considered on the basis of one-dimensional Su-Schrieffer-Heeger (SSH) model Hamiltonian. It is shown that usually used values of SSH model Hamiltonian parameters, especially transfer integral and electron-phonon coupling constant which are obtained in the framework of ab initio calculations, do not give reliable resolution of the problem of (large) polaron applicability for charge migration in DNA. Because of that, theoretical method is proposed which enables us to estimate explicitly electron-phonon coupling constant on the basis of transfer integral. The value of polaron width obtained for such determined parameters leads to the conclusion that coherent motion of large polaron represents dominant mechanism of charge transfer in DNA.", journal = "Journal of Physics: Conference Series", title = "Charge Transfer in DNA: The Role of Large Polarons", volume = "329", doi = "10.1088/1742-6596/329/1/012015" }
Zeković, S., Zdravković, S.,& Ivić, Z.. (2011). Charge Transfer in DNA: The Role of Large Polarons. in Journal of Physics: Conference Series, 329. https://doi.org/10.1088/1742-6596/329/1/012015
Zeković S, Zdravković S, Ivić Z. Charge Transfer in DNA: The Role of Large Polarons. in Journal of Physics: Conference Series. 2011;329. doi:10.1088/1742-6596/329/1/012015 .
Zeković, Slobodan, Zdravković, Slobodan, Ivić, Zoran, "Charge Transfer in DNA: The Role of Large Polarons" in Journal of Physics: Conference Series, 329 (2011), https://doi.org/10.1088/1742-6596/329/1/012015 . .