Conformational properties of complex polymers: Rosette versus star-like structures

V. Blavatska, R. Metzler

    Research output: Contribution to journalArticleScientificpeer-review

    16 Citations (Scopus)

    Abstract

    Multiple loop formation in polymer macromolecules is an important feature of the chromatin organization and DNA compactification in the nuclei. We analyse the size and shape characteristics of complex polymer structures, containing in general f<inf>1</inf> loops (petals) and f<inf>2</inf> linear chains (branches). Within the frames of continuous model of Gaussian macromolecule, we apply the path integration method and obtain the estimates for gyration radius R<inf>g</inf> and asphericity  of typical conformation as functions of parameters f<inf>1</inf>, f<inf>2</inf>. In particular, our results qualitatively reveal the extent of anisotropy of star-like topologies as compared to the rosette structures of the same total molecular weight.

    Original languageEnglish
    Article number135001
    JournalJournal of Physics A: Mathematical and Theoretical
    Volume48
    Issue number13
    DOIs
    Publication statusPublished - 7 Apr 2015
    Publication typeA1 Journal article-refereed

    Keywords

    • conformational properties
    • path integration
    • polymers

    Publication forum classification

    • Publication forum level 1

    ASJC Scopus subject areas

    • Mathematical Physics
    • General Physics and Astronomy
    • Statistical and Nonlinear Physics
    • Modelling and Simulation
    • Statistics and Probability

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