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Crystaline Toroidal Globules of DNA and other Semi-flexible Polymers: Jumps in Radius Caused by Hexagonal Packing

Pereira, G.; Williams, David


We study a single semiflexible polymer chain immersed in a poor solvent. Such chains are stiff and are known to form toroidal globules. Here we examine the effects of hexagonally ordered packing of the chains. This packing induces a series of sharp transitions in the circuit number (number of complete circuits of the toroid) and major radius of the torus as a function of chain length. Circuit numbers corresponding to closed shells are strongly favoured and circuit numbers corresponding to a...[Show more]

CollectionsANU Research Publications
Date published: 2000
Type: Journal article
Source: Europhysics Letters
DOI: 10.1209/epl/i2000-00306-3


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