Studies of nanoscale structural ordering in planar DNA complexes with amphiphilic mono- and polycationsстатья
Информация о цитировании статьи получена из
Web of Science ,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Авторы:
Antipina M.N. ,
Gainutdinov R.V. ,
Rachnyanskaya A.A. ,
Tolstikhina A.L. ,
Yurova T.V. ,
Khomutov G.B.
Журнал:
Surface Science
Том:
532
Год издания:
2003
Издательство:
Elsevier BV
Местоположение издательства:
Netherlands
Первая страница:
1025
Последняя страница:
1033
DOI:
10.1016/S0039-6028(03)00406-0
Аннотация:
Formation of DNA complexes with Langmuir monolayers of cationic lipid octadecylamine (ODA) and new amphiphilic polycation poly-4-vinylpyridine with 16% cetylpyridinium groups (PVP-16) on the surface of native DNA aqueous solution with low ionic strength has been studied. AFM topographic images of DNA/ODA and DNA/PVP-16 complex Langmuir-Blodgett films deposited on the mica substrates were obtained. The complex structures and individual DNA molecules on the amphiphile monolayer surface were observed. The characteristic extended net-like structures and quasi-circular toroidal condensed conformations of the planar DNA complexes were formed in dependence on the polycationic amphiphile monolayer state during the DNA binding. The data obtained give evidence for the effectiveness of monolayer techniques for investigation the mechanisms of DNA complexation with amphiphilic mono- and polycations and demonstrate its perspectives for creation of supramolecular planar DNA-based self-organized nanostructures with nanoscale structural ordering. © 2003 Elsevier Science B.V. All rights reserved.
Добавил в систему:
Хомутов Геннадий Борисович