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ID 113243
著者
Taneo, Masaki Osaka University
Shigematsu, Taiki Osaka University
Wada, Shigeo Osaka University
資料タイプ
学術雑誌論文
抄録
An essential step of nanoliposome formation in an aqueous lipid solution is the transition from discoidal lipid aggregate (bicelle) to vesicle. We here investigate the bicelle-vesicle transition of a binary lipid mixture of saturated and unsaturated phosphatidylcholine by performing nonequilibrium molecular dynamics simulations with the coarse-grained representation of di-palmitoyl-phosphatidyl-choline (DPPC) and di-linoleoyl-phosphatidyl-choline (DLiPC). When DPPC molecules of a stable DPPC bicelle are randomly replaced to DLiPC molecules, the transition occurs for higher apparent DLiPC concentrations. On the other hand, when the DPPC molecules only in the core region of the bicelle are replaced, the transition occurs even for lower apparent DLiPC concentrations. For the bicelle where the head and tail layers are, respectively, pure DPPC and DLiPC monolayers, the side of DLiPC monolayer becomes the concave surface of bending bicelle. Controlling the local lipid compositions in binary lipid bicelle has the potential to determine the success of vesicle formation and the direction of bicelle bending. Our findings help explain nanoliposome formation with sonication and give useful information for controlling encapsulation efficiencies of nanoliposomes.
掲載誌名
The Journal of Physical Chemistry B
ISSN
15206106
15205207
cat書誌ID
AA11114073
AA12189704
出版者
ACS Publications
123
14
開始ページ
3118
終了ページ
3123
発行日
2019-03-19
権利情報
This document is the Accepted Manuscript version of a Published Work that appeared in final form in The Journal of Physical Chemistry B, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acs.jpcb.8b10682.
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出版社版DOI
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言語
eng
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著者版
部局
理工学系