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Charge diffusion through desoxyribonucleic acid (DNA) is a physico-chemical phenomenon that on the one hand is being explored for technological purposes, on the other hand is applied by nature for various informational processes in life.…

Biological Physics · Physics 2024-07-22 Mirko Rossini , Ole Ammerpohl , Reiner Siebert , Joachim Ankerhold

We investigate the nonlinear dynamics of the Peyrard-Bishop DNA model taking into account site dependent inhomogeneities. By means of the multiple-scale expansion in the semi-discrete approximation, the dynamics is governed by the perturbed…

Biological Physics · Physics 2018-07-20 Joseph Brizar Okaly , Alain Mvogo , Rosalie Laure Woulache , Timoleon Crepin Kofane

Measurements of electron transfer rates as well as of charge transport characteristics in DNA produced a number of seemingly contradictory results, ranging from insulating behaviour to the suggestion that DNA is an efficient medium for…

Soft Condensed Matter · Physics 2007-05-23 R. Bulla , R. Gutierrez , G. Cuniberti

Quantum transport for DNA conduction has widely studied with interest in application as a candidate in making nanowires as well as interest in the scientific mechanism. In this paper, we review recent works with concerning the electronic…

Disordered Systems and Neural Networks · Physics 2015-03-13 Hiroaki Yamada , Kazumoto Iguchi

Long range charge transfer experiments in DNA oligomers and the subsequently measured -- and very diverse -- transport response of DNA wires in solid state experiments exemplifies the need for a thorough theoretical understanding of charge…

Genomics · Quantitative Biology 2015-05-13 G. Cuniberti , E. Macia , A. Rodriguez , R. A. Römer

Microscopic mechanisms of positive charge transfer in DNA remain unclear. A quantum state of electron hole in DNA is determined by the competition of the pi-stacking interaction $b$ sharing a charge between different base pairs and the…

Soft Condensed Matter · Physics 2008-06-06 Dmitry B. Uskov , Alexander L. Burin

We consider the nonlinear derivative Schrodinger equation with a quintic nonlinearity, on the one dimensional torus. We exhibit that the nonlinear dynamic properties consist of four frequency modes initially excited, whose frequencies…

Analysis of PDEs · Mathematics 2016-03-08 Hideo Takaoka

In many organic molecules the strong coupling of excess charges to vibrational modes leads to the formation of polarons, i.e., a localized state of a charge carrier and a molecular deformation. Incoherent hopping of polarons along the…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 Benjamin B. Schmidt , Matthias H. Hettler , Gerd Schön

The interplay between structure and dynamics in non-equilibrium steady-state is far from understood. We address this interplay by tracking Brownian Dynamics trajectories of particles in a binary colloid of opposite charges in an external…

Soft Condensed Matter · Physics 2016-12-08 Suman Dutta , J. Chakrabarti

Nucleic acids and proteins are not only biologically important polymers: They have recently been recognized as novel functional materials surpassing in many aspects the conventional ones. Although Herculean efforts have been undertaken to…

Soft Condensed Matter · Physics 2010-06-17 Waleed Shinwari , Jamal Deen , Evgeni Starikov , Gianaurelio Cuniberti

In this work we investigate the interplay between coherent and incoherent charge transport in cytosine-guanine (GC) rich DNA molecules. Our objective is to introduce physically grounded approach to dephasing in large molecules and to…

Mesoscale and Nanoscale Physics · Physics 2018-05-09 Patrick Karasch , Dmitry A. Ryndyk , Thomas Frauenheim

Microscopic mechanisms of positive charge transfer in DNA remain unclear. A quantum state of electron hole in DNA is determined by the competition of a pi-stacking interaction $b$ smearing a charge between different base pairs and…

Soft Condensed Matter · Physics 2008-03-15 D. B. Uskov , A. L. Burin

In the present paper we study the impact of dispersion and nonlinearity on DNA dynamics. We rely on the helicoidal Peyrard-Bishop model and use the fact that nonlinear DNA dynamics represents an interplay between nonlinearity and…

Biological Physics · Physics 2012-12-04 Slobodan Zdravković , Miljko V. Satarić

A couple of models are explained. Helicoidal PB model is studied in more details. It is shown that semi-discrete approximation yields to breather-type soliton moving along the chain. The model can explain local opening as a resonance mode.…

Soft Condensed Matter · Physics 2019-09-16 Slobodan Zdravkovic

We investigate the nonlinear dynamics of a damped Peyrard-Bishop DNA model taking into account long-range interactions with distance dependence |l|^-s on the elastic coupling constant between different DNA base pairs. Considering both…

Biological Physics · Physics 2017-07-12 J. Brizar Okaly , Alain Mvogo , R. Laure Woulaché , T. Crépin Kofané

While ubiquitous, energy redistribution remains a poorly understood facet of the nonequilibrium thermodynamics of biomolecules. At the molecular level, finite-size effects, pronounced nonlinearities, and ballistic processes produce behavior…

Biological Physics · Physics 2019-11-15 Justin E. Elenewski , Kirill A. Velizhanin , Michael Zwolak

We investigate the energy transport in one-dimensional disordered granular solids by extensive numerical simulations. In particular, we consider the case of a polydisperse granular chain composed of spherical beads of the same material and…

Chaotic Dynamics · Physics 2016-03-02 V. Achilleos , G. Theocharis , Ch. Skokos

In this paper we review several approaches to mathematical modeling of simple battery cells and develop these ideas further with emphasis on charge recovery and the response behavior of batteries to given external load. We focus on models…

Probability · Mathematics 2016-04-04 Ingemar Kaj , Victorien Konané

Recent experiments indicated that disorder effect in DNA may lead to a transition of the charge transport mechanism from band resonant tunnelling to thermal activated hopping. In this letter, based on Mott's variable-range hopping theory we…

Soft Condensed Matter · Physics 2013-12-16 Yong-Gang Yang , Peng-Gang Yin , Xin-Qi Li anf YiJing Yan

In this paper we propose a novel theoretical framework for interpreting long-range dynamical correlations unveiled in proteins through NMR measurements. The theoretical rationale relies on the hypothesis that correlated motions in proteins…

Biomolecules · Quantitative Biology 2014-04-03 Francesco Piazza