Hydrophilic carotenoids: surface properties and aggregation behavior of a highly unsaturated carotenoid lysophospholipid

被引：24

作者：

Foss, BJ

Sliwka, HR ^{[1
]}

Partali, V

Naess, SN

Elgsaeter, A

Melo, TB

Naqvi, KR

机构：

[1] Norwegian Univ Sci & Technol, Dept Chem, N-7491 Trondheim, Norway

[2] Norwegian Univ Sci & Technol, Dept Phys, N-7491 Trondheim, Norway

来源：

CHEMISTRY AND PHYSICS OF LIPIDS | 2005年 / 134卷 / 02期

关键词：

carotenoids; surfactants; aggregates; phospholipids; fatty acids;

D O I：

10.1016/j.chemphyslip.2004.12.008

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 [生物化学与分子生物学]; 081704 [应用化学];

摘要：

The water dispersibility of a hydrophobic carotenoid has been greatly enhanced by using it as the acyl part in the synthesis of a highly unsaturated lysophospholipid. Dynamic light scattering has revealed the formation of stable aggregates with an average hydrodynamic radius of a few nanometers, and absorption spectra show that the aggregates can withstand the addition of ethanol or acetonitrile until the volume fraction of water falls below 70 and 62%, respectively. The proper-ties of the carotenoid phospholipids have been characterized by determining surface tension, critical micelle concentration, surface concentration, molecular area, free energy of adsorption and micellation, adsorption-micellar energy relationship, and equilibrium constants. (c) 2005 Elsevier Ireland Ltd. All rights reserved.

引用

页码：85 / 96

页数：12

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CHIRAL AGGREGATION PHENOMENA .4. A SEARCH FOR STEREOSPECIFIC INTERACTIONS BETWEEN HIGHLY PURIFIED ENANTIOMERIC AND RACEMIC DIPALMITOYL PHOSPHATIDYLCHOLINES AND OTHER CHIRAL SURFACTANTS IN MONOLAYERS, VESICLES, AND GELS [J].