Thermotropic Phase Behavior of Multilamellar Membranes of Dioleoylphosphatidylcholine
文献类型：期刊论文
| 作者 | Zhang, YD ; Lu, Y ; Hu, SX ; Li, M |
| 刊名 | JOURNAL OF PHYSICAL CHEMISTRY B
 |
| 出版日期 | 2010 |
| 卷号 | 114期号:6页码:2153 |
| 关键词 | PHOSPHOLIPID-BILAYERS PLASMA-MEMBRANE PHOSPHATIDYLCHOLINES HYDRATION FORCES |
| ISSN号 | 1520-6106 |
| 通讯作者 | Hu, SX (reprint author), Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China. |
| 中文摘要 | We use the X-ray diffraction method to examine the thermotropic phase behavior of multilamellar membranes of dioleoylphosphatidylcholine. We find that when the temperature is reduced from room temperature to below 0 degrees C, both the lipid bilayers and the amount of water in the bilayers increase. But the interbilayer distance descends abruptly at a certain temperature between -6 and -15 degrees C, the actual value depending on the relative humidity of the atmosphere, solely due to the thinning of the water layer, d(w). There are several L(alpha) and L(c) phase coexistence states both in the cooling process and in the heating process. In the cooling process, only a part of the lipid molecules accomplish the L(alpha)-to-L(c) main phase transition at -16 degrees C, with the rest of the lipids being frozen down to a very low temperature. In the heating process, however, these frozen lipid molecules are able to move to complete the L(alpha)-to-L(c) main phase transition at -12 degrees C. The reverse of the main phase transition begins at -9 degrees C and is completed at -5 degrees C, after which the water is absorbed into the lipid bilayer to increase the thickness of the water layer, while the thickness of the lipid membranes remain unchanged. This process continues until all the ice on top of the samples melts. |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China [10904164, 10674158]; CAS [kjcx3.syw.n8] |
| 语种 | 英语 |
| 公开日期 | 2013-09-23 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/45811]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Zhang, YD,Lu, Y,Hu, SX,et al. Thermotropic Phase Behavior of Multilamellar Membranes of Dioleoylphosphatidylcholine[J]. JOURNAL OF PHYSICAL CHEMISTRY B,2010,114(6):2153. |
| APA | Zhang, YD,Lu, Y,Hu, SX,&Li, M.(2010).Thermotropic Phase Behavior of Multilamellar Membranes of Dioleoylphosphatidylcholine.JOURNAL OF PHYSICAL CHEMISTRY B,114(6),2153. |
| MLA | Zhang, YD,et al."Thermotropic Phase Behavior of Multilamellar Membranes of Dioleoylphosphatidylcholine".JOURNAL OF PHYSICAL CHEMISTRY B 114.6(2010):2153. |
入库方式： OAI收割
来源：物理研究所
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