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このアイテムの引用には次の識別子を使用してください:
http://hdl.handle.net/10119/9073
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| タイトル: | Rhythmic pore dynamics in a shrinking lipid vesicle |
| 著者: | Hamada, Tsutomu
Hirabayashi, Yuichi
Ohta, Takao
Takagi, Masahiro |
| キーワード: | lipid membrane
vesicle
nonequilibrium
oscillation
pore |
| 発行日: | 2009-11-24 |
| 出版者: | American Physical Society |
| 誌名: | Physical Review E |
| 巻: | 80 |
| 号: | 5 |
| 開始ページ: | 51921-1 |
| 終了ページ: | 51921-7 |
| DOI: | 10.1103/PhysRevE.80.051921 |
| 抄録: | The rhythmic motion of membrane pore behavior under nonequilibrium conditions was studied. Application of the surfactant triton X-100 (TX-100) caused lipid vesicles to exhibit two types of shrinking dynamics with pore generation, which depended on both the size of the vesicles and the concentration of added TX-100. Small vesicles and the addition of a low concentration of TX-100 resulted in rhythmic-pore dynamics, where a transient pore was generated within a vesicle in a repetitive manner. In contrast, large vesicles and a high concentration of TX-100 led to continuous-pore dynamics, where the vesicle maintained an open pore during the shrinking process. In the rhythmic-pore membrane, long-cycle oscillation was observed with large vesicles and a low concentration TX-100. The period of one cycle decreased with a decrease in the vesicle size and an increase in the TX-100 concentration. We discuss the mechanism of these trends by considering the elastic free energy of the membrane. |
| Rights: | Tsutomu Hamada, Yuichi Hirabayashi, Takao Ohta, Masahiro Takagi, Physical Review E, 80(5), 2009, 51921-1-51921-7. Copyright 2009 by the American Physical Society. http://dx.doi.org/10.1103/PhysRevE.80.051921 |
| URI: | http://hdl.handle.net/10119/9073 |
| 資料タイプ: | publisher |
| 出現コレクション: | c10-1. 雑誌掲載論文 (Journal Articles)
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