Electric and magnetic field influence on localization length G4 DNA molecule

2nd International Conference on Current Progress in Functional Materials 2017

Apriyanti, L.^1 ; Yudiarsah, E.^1

Department of Physics, Faculty of Mathematics and Natural Sciences (FMIPA), Universitas Indonesia, Depok

16424, Indonesia^1

关键词: Base pairs;    DNA model;    DNA molecules;    Electric and magnetic fields;    Electric field strength;    Localization length;    Localized state;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/496/1/012044/pdf
DOI  :  10.1088/1757-899X/496/1/012044

来源: IOP

【 摘 要 】

Electric and magnetic field influence on localization length G4 DNA molecule has been studied. This research used G4 DNA model of 102 base pair. Localization length is calculated using the transfer matrix method. The electric field is applied in the direction parallel to DNA's symmetrical axis. The magnetic field is applied perpendicular to DNA symmetrical axis. The results of the calculation of localization length under influence of electric field showed that the localization length decreases with electric field strength, so more electron state becomes a localized state. Other results show magnetic field has no significant effect on the spectrum of the localization length, even at large magnetic field.