@article {53,
	title = {DNA attraction in monovalent and divalent electrolytes},
	journal = {J Am Chem Soc},
	volume = {130},
	year = {2008},
	month = {2008 Nov 26},
	pages = {15754-5},
	abstract = {<p>The dependence of the effective force on the distance between two DNA molecules was directly computed from a set of extensive all-atom molecular dynamics simulations. The simulations revealed that in a monovalent electrolyte the effective force is repulsive at short and long distances but can be attractive in the intermediate range. This attractive force is, however, too weak (approximately 5 pN per turn of a DNA helix) to induce DNA condensation in the presence of thermal fluctuations. In divalent electrolytes, DNA molecules were observed to form a bound state, where Mg(2+) ions bridged minor groves of DNA. The effective force in divalent electrolytes was predominantly attractive, reaching a maximum of 42 pN per one turn of a DNA helix.</p>
},
	keywords = {Computer Simulation, DNA, Electrolytes, Models, Molecular, Molecular Conformation},
	issn = {1520-5126},
	doi = {10.1021/ja804802u},
	author = {Luan, Binquan and Aleksei Aksimentiev}
}
