najoNanosystems: Physics, Chemistry, MathematicsНаносистемы: физика, химия, математика2220-80542305-7971Университет ИТМОnajo-1201Research ArticlePHYSICSФИЗИКАInteraction of terahertz radiation with DNABugayA. N.

Aleksandr Bugay – Ph.D., researcher

bugay_aleksandr@mail.ruJoint Institute for Nuclear ResearchRussian Federation201220082025315155Copyright © Bugay A.N., 20252025Bugay A.N.Bugay A.N.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://nanojournal.ifmo.ru/jour/article/view/1201

A nonlinear model of DNA dynamics with coupling between conformational dynamics and proton tunneling is presented. It is demonstrated that terahertz radiation can influence both vibrational excitations and proton motion in DNA hydrogen bonds. The irradiation at the edge of far IR spectral range can promote proton tunneling. If the radiation frequency matches the vibrational mode, the generation of localized excitations in form of dissipative solitons is possible. These solitons decrease the probability of proton tunneling.

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The authors declare that there are no conflicts of interest present.