Effects of hydrophobicity in DNA surfactant complexation

Paulo S. Kuhn, M.C. Barbosa and Yan Levin

Physica A: Statistical Mechanics and its Applications, 2000, vol. 283, issue 1, 113-118

Abstract: We study a simple model of DNA cationic surfactant complexation. It is found that a combination of electrostatic and hydrophobic effects leads to a cooperative binding transition in which a large fraction of the DNA's charge is neutralized by the condensed cationic surfactants. A further increase of surfactant density can result in charge inversion of the DNA–surfactant complexes. This regime should be of particular interest for application to gene therapy. In this paper we shall explore the dependence of the cooperative binding on hydrophobic interactions between the DNA and amphiphilic molecules.

Keywords: DNA; RNA; Properties of solutions (search for similar items in EconPapers)
Date: 2000
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:283:y:2000:i:1:p:113-118

DOI: 10.1016/S0378-4371(00)00136-9

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