STRUCTURAL TRANSITION IN A LIPID-WATER LIQUID SYSTEM

被引：0

作者：

Bulavin, L. A. ^{[1
]}

Solov'ev, D. V. ^{[1
,2
]}

Gorshkova, Yu. E. ^{[2
]}

Zhigunov, A. N. ^{[3
]}

Ivan'kov, O. I. ^{[1
,2
]}

Gordelii, V. I. ^{[2
,4
,5
,6
]}

Kuklin, O. I. ^{[2
,4
]}

机构：

[1] Taras Shevchenko Natl Univ Kyiv, 4 Acad Glushkov Ave, UA-03022 Kiev, Ukraine

[2] Joint Inst Nucl Res, Dubna 141980, Russia

[3] Acad Sci Czech Republ, Inst Macromol Chem, Prague 2162 06 6, Czech Republic

[4] Moscow Inst Phys & Technol, Res & Educ Ctr Bionanophys, Dolgoprudnyi 141700, Russia

[5] Inst Biol Struct JP Ebel, F-38027 Grenoble 1, France

[6] Inst Complex Syst, D-52428 Julich, Germany

来源：

UKRAINIAN JOURNAL OF PHYSICS | 2012年 / 57卷 / 06期

关键词：

D O I：

暂无

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Small-angle X-ray scattering technique has been used to study multilayer lipid membranes of 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC) and the 3: 1-mixture DPPC/1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine (POPC) in excess water. The temperature dependences of the repetition period for lipid bilayers in the temperature range 20-55 degrees C are obtained. A comparative analysis of the scattering curves obtained for multilayer membranes showed that, below a temperature of 40 degrees C, there emerges an additional ordering with a repetition period of 66 angstrom in the lipid mixture, which we associate with the lipid phase separation. A disappearance of the so-called ripple (wave-like) phase of DPPC lipid in the mixture is also observed.

引用

页码：623 / 627

页数：5

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