| Investigations into the Bending Constant and Edge Energy of Bilayers of Salt-Free Catanionic Vesicles | |
| Department | 固体润滑国家重点实验室 |
Chen JF(陈景飞)1,3 ; Long PF(龙攀峰)2; Li HG(李洪光)1; Hao JC(郝京诚)1,2; Hao JC(郝京诚)
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| 2012 | |
| Source Publication | Langmuir
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| ISSN | 0743-7463 |
| Volume | 28Issue:14Pages:5927-5933 |
| Abstract | Using molecular dynamics simulation, we performed theoretical calculations on the curvature constant and edge energy of bilayers of salt-free, zerocharged, cationic and anionic (catanionic) surfactant vesicles composed of alkylammonium cations (Cm+) and fatty acid anions (Cn−). Both the minimum size and edge energy of vesicles were calculated to examine the relation between the length of the surfactant molecules and the mechanical properties of the catanionic bilayers. Our simulation results clearly demonstrate that, when the chain lengths of the cationic and anionic surfactants are equal, both the edge energy and the rigidity of the catanionic bilayers increase dramatically, changing from around 0.36 to 2.77 kBT·nm−1 and around 0.86 to 6.51 kBT·nm−1, respectively. For the smallest catanionic vesicles, the curvature is not uniform and the surfactant molecules adopt a multicurvature arrangement in the vesicle bilayers. We suspect that the multicurvature bending of bilayers of catanionic vesicles is a common phenomenon in rigid bilayer systems, which could aid understanding of ion transport through bilayer membranes. |
| Subject Area | 材料科学与物理化学 |
| DOI | 10.1021/la2048773 |
| Funding Organization | the NSFC (Grant No.21033005);the National Basic Research Program of China (973 Program, 2009CB930103);NFS of Shandong Province (2009ZRB01876) |
| Indexed By | SCI |
| Language | 英语 |
| compositor | 第一作者单位 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/3399 |
| Collection | 固体润滑国家重点实验室（LSL） |
| Corresponding Author | Hao JC(郝京诚) |
| Affiliation | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China 2.Shandong Univ, Minist Educ, Key Lab Colloid & Interface Chem, Jinan 250100, Peoples R China 3.Chinese Acad Sci, Grad Sch, Beijing 100080, Peoples R China |
| Recommended Citation GB/T 7714 | Chen JF,Long PF,Li HG,et al. Investigations into the Bending Constant and Edge Energy of Bilayers of Salt-Free Catanionic Vesicles[J]. Langmuir,2012,28(14):5927-5933. |
| APA | Chen JF,Long PF,Li HG,Hao JC,&郝京诚.(2012).Investigations into the Bending Constant and Edge Energy of Bilayers of Salt-Free Catanionic Vesicles.Langmuir,28(14),5927-5933. |
| MLA | Chen JF,et al."Investigations into the Bending Constant and Edge Energy of Bilayers of Salt-Free Catanionic Vesicles".Langmuir 28.14(2012):5927-5933. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 5927-5933.PDF（2732KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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