Volume 33, Number 5, February II 1996
|Page(s)||353 - 358|
|Section||Atomic, molecular and optical physics|
|Published online||01 September 2002|
Deformation of toroidal DNA condensates under surface stress
Department of Polymer Technology, Faculty of Chemical Engineering and
Materials Science, Delft University of Technology, P.O. box 5045, 2600 GA Delft,
Accepted: 21 December 1995
A qualitative rule is formulated for the shape deformation of DNA condensates, in which the surface stresses are balanced against bending forces. A quantitative analysis is presented for toroidal globules. Low surface tensions lead to ideal tori, high tensions give rise to compact toroids with thin inner tubes. A qualitative discussion is given of Laemmli's experiments on globules of monomolecular DNA.
PACS: 36.20.-r – Macromolecules and polymer molecules / 61.30.-v – Liquid crystals / 64.70.-p – Phase equilibria, phase transitions, and critical points of specific substances
© EDP Sciences, 1996
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