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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/1271
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dc.contributor.authorKrishnaswamy, Rema-
dc.contributor.authorRaghunathan, V.A.-
dc.contributor.authorSood, A.K.-
dc.date.accessioned2006-05-17T05:51:41Z-
dc.date.available2006-05-17T05:51:41Z-
dc.date.issued2004-
dc.identifier.citationPhysical Review E, 2004, Vol.69, 031905-031905en
dc.identifier.issnISSN 1550-2376 (online)-
dc.identifier.issn1539-3755 (print)-
dc.identifier.urihttp://hdl.handle.net/2289/1271-
dc.description.abstractComplexes of double-stranded DNA with the cationic surfactant cetyltrimethylammonium bromide have been studied using small angle x-ray diffraction at varying concentrations of DNA and the cosurfactant hexanol. At low DNA concentrations, an intercalated hexagonal (H<sub>I</sub><sup>c</sup>)-->lamellar (L<sub>alpha</sub><sup>c</sup>)-->inverted hexagonal (H<sub>II</sub><sup>c</sup>) transformation is found on increasing hexanol content. The H<sub>II</sub><sup>c</sup> structure is converted into L<sub>alpha</sub><sup>c</sup> on adding more DNA. Further increase in hexanol content leads to a phase separation in the surfactant solution, and a reentrant L<sub>alpha</sub><sup>c</sup>-->H<sub>II</sub><sup>c</sup>-->L<sub>alpha</sub><sup>c</sup> transition is observed as DNA concentration is increased. Such structural transformations of DNA-surfactant complexes, driven by DNA concentration, have not been reported until now.en
dc.format.extent96902 bytes-
dc.format.mimetypeapplication/pdf-
dc.language.isoenen
dc.publisherThe American Physical Societyen
dc.relation.urihttp://link.aps.org/abstract/PRE/v69/e031905en
dc.rights(2004) by the American Physical Societyen
dc.titleReentrant phase transitions of DNA-surfactant complexesen
dc.typeArticleen
Appears in Collections:Research Papers (SCM)

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