Journal Article

PreJuSER-45671

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png DNA condensation and redissolution: interaction between overcharged DNA molecules

Allahyarov, E.FZJ* ; Gompper, G.FZJ* ; Löwen, H.

2005
IOP Publ. Bristol

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Please use a persistent id in citations: http://hdl.handle.net/2128/23026  doi:10.1088/0953-8984/17/20/012

Abstract: The effective DNA-DNA interaction force is calculated by computer simulations with explicit tetravalent counterions and monovalent salt. For overcharged DNA molecules, the interaction force shows a double-minimum structure: The positions and depths of these minima are regulated by the counterion density in the bulk. Using two-dimensional lattice sums and free energy perturbation theories, the coexisting phases for DNA bundles are calculated. A DNA condensation and redissolution transition and a stable mesocrystal with an intermediate lattice constant for high counterion concentration are obtained.

Keyword(s): J

Note: Record converted from VDB: 12.11.2012

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Contributing Institute(s):

1. Theorie II (IFF-TH-II)

Research Program(s):

1. Kondensierte Materie (M02)

Appears in the scientific report 2005

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Database coverage:

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