Hydration kinetics of oriented lipid membranes investigated by energy dispersive x-ray diffraction

被引：5

作者：

Caracciolo, G

Sadun, C

Caminiti, R

机构：

[1] Univ Roma La Sapienza, Dipartimento Chim, I-00185 Rome, Italy

[2] Univ Roma La Sapienza, INFM, Rome, Italy

来源：

APPLIED PHYSICS LETTERS | 2004年 / 85卷 / 09期

关键词：

D O I：

10.1063/1.1785855

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Energy dispersive x-ray diffraction was applied to investigate the hydration kinetics of highly aligned 1,2-dioleoyl-3-trimethylammonium-propane membrane system. First, the adsorption of water into the lipid film results in a continous gain of interbilayer spatial coherence until a maximum is reached. Further, adsorbed water molecules behave as bulk water promoting loss of spatial coherence and leading to a progressive lowering and broadening of diffraction peaks. The possible molecular origin of this phenomenon is discussed. (C) 2004 American Institute of Physics.

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页码：1630 / 1632

页数：3

相关论文

共 15 条

[1] INTERACTION OF ELECTRIC DIPOLES WITH PHOSPHOLIPID HEAD GROUPS - A H-2 AND P-31 NMR-STUDY OF PHLORETIN AND PHLORETIN ANALOGS IN PHOSPHATIDYLCHOLINE MEMBRANES [J].

BECHINGER, B ;

SEELIG, J .

BIOCHEMISTRY, 1991, 30 (16) :3923-3929

[2] Hydration of the dienic lipid dioctadecadienoylphosphatidylcholine in the lamellar phase - An infrared linear dichroism and X-ray study on headgroup orientation, water ordering, and bilayer dimensions [J].

Binder, H ;

Gutberlet, T ;

Anikin, A ;

Klose, G .

BIOPHYSICAL JOURNAL, 1998, 74 (04) :1908-1923

[3] Thermodynamic and kinetic aspects of lyotropic solvation-induced transitions in phosphatidylcholine and phosphatidylethanolamine assemblies revealed by humidity titration calorimetry [J].

Binder, H ;

Kohlstrunk, B ;

Pohle, W .

JOURNAL OF PHYSICAL CHEMISTRY B, 2000, 104 (50) :12049-12055

[4] The kinetics of phase transitions observed by energy-dispersive X-ray diffraction [J].

Caminiti, R ;

Albertini, VR .

INTERNATIONAL REVIEWS IN PHYSICAL CHEMISTRY, 1999, 18 (02) :263-299

[5] Structural features of a cationic gemini surfactant at full hydration investigated by energy dispersive X-ray diffraction [J].

Caracciolo, G ;

Mancini, G ;

Bombelli, C ;

Caminiti, R .

CHEMICAL PHYSICS LETTERS, 2004, 386 (1-3) :76-82

[6]

CEVC G, 1995, LANGMUIR, V11, P3103, DOI 10.1021/la00008a041

[7]

CHENG JX, 2003, P NATL ACAD SCI USA, V19, P10017

[8] The directional dependence of water penetration into Langmuir-Blodgett multilayers [J].

Girard, KP ;

Quinn, JA ;

Vanderlick, TK .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1999, 217 (01) :146-153

[9] Role of hydration and water structure in biological and colloidal interactions [J].

Israelachvili, J ;

Wennerstrom, H .

NATURE, 1996, 379 (6562) :219-225

[10] Sample cell capable of 100% relative humidity suitable for x-ray diffraction of aligned lipid multibilayers [J].

Katsaras, J ;

Watson, MJ .

REVIEW OF SCIENTIFIC INSTRUMENTS, 2000, 71 (04) :1737-1739