Do DC-Chol/DOPE-DNA complexes really form an inverted hexagonal phase?

被引:23
作者
Caracciolo, G [1 ]
Caminiti, R [1 ]
机构
[1] Univ Roma La Sapienza, Dipartimento Chim, I-00185 Rome, Italy
关键词
D O I
10.1016/j.cplett.2005.06.070
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Using synchrotron small angle X-ray scattering and energy dispersive X-ray diffraction, we have found that cationic liposomes made of the monovalent cationic lipid, 3-[N-(N,N-dimethylaminoethane)-carbamoyl]cholesterol (DC-Chol) and the neutral lipid dioleoylphosphatidylethanolamine (DOPE) condense DNA molecules forming complexes (DC-Chol/DOPE-DNA) which are not assembled in an inverted hexagonal structure as recently reported, but, conversely, form a well-ordered lamellar liquid-crystalline phase with distinct regimes of DNA packing density. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:327 / 332
页数:6
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