Nonlinear charge transport mechanism in periodic and disordered DNA

Details Nonlinear charge transport mechanism in periodic and disordered DNA Nonlinear charge transport mechanism in periodic and disordered DNA

2003-01-28

arxiv.org/abs/nlin/0301039v1

Physica D 180(3-4):256-272, 2003

Nonlinear Sciences

Pattern Formation and Solitons

23 pages, 13 figures

Scientific paper

We study a model for polaron-like charge transport mechanism along DNA molecules with emphasis on the impact of parametrical and structural disorder. Our model Hamiltonian takes into account the coupling of the charge carrier to two different kind of modes representing fluctuating twist motions of the base pairs and H-bond distortions within the double helix structure of $\lambda-$DNA. Localized stationary states are constructed with the help of a nonlinear map approach for a periodic double helix and in the presence of intrinsic static parametrical and/or structural disorder reflecting the impact of ambient solvent coordinates. It is demonstrated that charge transport is mediated by moving polarons respectively breather compounds carrying not only the charge but causing also local temporal deformations of the helix structure through the traveling torsion and bond breather components illustrating the interplay of structure and function in biomolecules.

Affiliated with

Also associated with

No associations

Rating

Nonlinear charge transport mechanism in periodic and disordered DNA does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Nonlinear charge transport mechanism in periodic and disordered DNA, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nonlinear charge transport mechanism in periodic and disordered DNA will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-317385