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We study the effects of the sequence on the propagation of nonlinear excitations in simple models of DNA, and how those effects are modified by noise. Starting from previous results on soliton dynamics on lattices defined by aperiodic…

Biomolecules · Quantitative Biology 2009-11-10 Sara Cuenda , Angel Sanchez

It has experimentally been found by Lampo et al. [Biophys. J. 112, 532 (2017)] that, for two different types of cell, the distribution of the diffusivities of RNA-protein particles over cytoplasm obeys an exponential law. Then, an…

Biological Physics · Physics 2019-08-02 Yuichi Itto

The statistics of randomly branching double-folded ring polymers are relevant to the secondary structure of RNA, the large-scale branching of plectonemic DNA (and thus bacterial chromosomes), the conformations of single-ring polymers…

Soft Condensed Matter · Physics 2025-10-03 Elham Ghobadpour , Max Kolb , Ivan Junier , Ralf Everaers

We study the effect of electrostatic interactions on the distribution function of the end-to-end distance of a single polyelectrolyte chain in the rodlike limit. The extent to which the radial distribution function of a polyelectrolyte is…

Soft Condensed Matter · Physics 2009-11-10 Roya Zandi , Joseph Rudnick , Ramin Golestanian

The two-nucleon momentum distributions have been calculated for nuclei up to A=40 and various values of the relative and center-of-mass momenta and angle between them. For complex nuclei a parameter-free linked-cluster expansion, based upon…

Nuclear Theory · Physics 2016-10-19 Massimiliano Alvioli , Claudio Ciofi degli Atti , Hiko Morita

Mechanical responses of soft particle packings to quasi-static deformations are determined by the microscopic restructuring of force-chain networks, where complex non-affine displacements of constituent particles cause the irreversible…

Soft Condensed Matter · Physics 2015-07-17 Kuniyasu Saitoh , Vanessa Magnanimo , Stefan Luding

The distance distribution between complementary base pairs of the two strands of a DNA molecule is studied near the melting transition. Scaling arguments are presented for a generalized Poland-Scheraga type model which includes…

Statistical Mechanics · Physics 2009-11-07 M. Baiesi , E. Carlon , Y. Kafri , D. Mukamel , E. Orlandini , A. L. Stella

By exploring a recent model [Palmeri, J., M. Manghi, and N. Destainville. 2007. Phys. Rev. Lett. 99:088103] where DNA bending elasticity, described by the wormlike chain model, is coupled to base-pair denaturation, we demonstrate that small…

Statistical Mechanics · Physics 2010-06-22 Nicolas Destainville , Manoel Manghi , John Palmeri

Motivated by recent DNA-pulling experiments, we revisit the Poland-Scheraga model of melting a double-stranded polymer. We include distinct bending rigidities for both the double-stranded segments, and the single-stranded segments forming a…

Soft Condensed Matter · Physics 2008-11-13 Sahand Jamal Rahi , Mark Peter Hertzberg , Mehran Kardar

At the present time reliably established that probability density functions of gene expression of microarray experiments possess a number of universal properties. First of all these distributions have power asymptotic and secondly the shape…

Statistics Theory · Mathematics 2015-06-08 Viacheslav Saenko , Yurij Saenko

We investigate diffusion of excitation in one- and two-dimensional lattices with random on-site energies and deterministic long-range couplings (hopping) inversely proportional to the distance. Three regimes of diffusion are observed in…

Disordered Systems and Neural Networks · Physics 2020-11-18 Karol Kawa , Paweł Machnikowski

The transport of nanoparticles (NPs) in polymer networks, as a typical simplified model describing various structures in living systems, is profoundly important in biomedical engineering and nanotechnology. Predicting the effective…

Chemical Physics · Physics 2022-10-12 Yu Lu , Xin-Yue Liu , Guo-Hui Hu

For a model of DNA denaturation, exponents describing the distributions of denaturated loops and unzipped end-segments are determined by exact enumeration and by Monte Carlo simulations in two and three dimensions. The loop distributions…

Statistical Mechanics · Physics 2007-05-23 Marco Baiesi , Enrico Carlon , Attilio Stella

The unzipping transition under the influence of external force of a dsDNA molecule has been studied using the Peyrard-Bishop Hamiltonian. The critical force $F_c(T)$ is found to depend on the potential parameters $k$, represents the…

Soft Condensed Matter · Physics 2007-05-23 Navin Singh , Yashwant Singh

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

We study the electronic properties of DNA by way of a tight-binding model applied to four particular DNA sequences. The charge transfer properties are presented in terms of localisation lengths, crudely speaking the length over which…

Genomics · Quantitative Biology 2007-05-23 Daphne Klotsa , Rudolf A. Roemer , Matthew S. Turner

We perform a detailed analysis of solutions of the inverse problem applied to experimentally measured two-dimensional radial distribution functions for highly charged latex dispersions. The experiments are carried out at high colloidal…

Soft Condensed Matter · Physics 2009-11-10 Vladimir Lobaskin , Matthias Brunner , Clemens Bechinger , Hans Hennig von Gruenberg

Enzymatic ligation is essential for the synthesis of long DNA. However, the number of ligated products exponentially decays as the DNA synthesis proceeds in a random manner. The controlling of ligation randomness is of importance to…

Biological Physics · Physics 2021-09-29 Takaharu Y. Shiraki , Ken-ichiro Kamei , Yusuke T. Maeda

We study the probability of two Brownian particles to meet before one of them exits a finite interval. We obtain an explicit expression for the probability as a function of the initial distance of the two particles using the Weierstrass…

Mathematical Physics · Physics 2015-05-13 D. holcman , I. Kupka

Tethered particle experiments use light microscopy to measure the position of a micrometer-sized bead tethered to a microscope slide via a ~micrometer length polymer, in order to infer the behavior of the invisible polymer. Currently, this…

Biological Physics · Physics 2009-11-13 John F. Beausang , Chiara Zurla , Carlo Manzo , David Dunlap , Laura Finzi , Philip C. Nelson