Информация о цитировании статьи получена из
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Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 19 июля 2013 г.
Аннотация:A linear DNA can be dissolved in nonaqueous low-polar organic solvents by forming complexes between DNA and cationic surfactants. The data of high-rate sedimentation, UV-spectrometric and circular dichroism measurements show that the DNA complexes with surfactant in chloroform, heptane and cyclohexane are individual components with a 1∶1 stoichiometry. The DNA molecules passing to the organic phase retain a double-stranded helix conformation. By means of scanning tunneling and atomic force microscopy it was found that DNA-surfactant complexes in water and in chloroform exist in compact toroidal conformation. It was demonstrated that such complexes can be transferred through water/organic-phase boundaries.