Molecular interactions at the phospholipid—water interface. Infrared spectrum of dimyristoyl— Lα—lecithin adsorbed on hydrated potassium bromide

Phospholipid—water interfaces are obtained, at different degrees of surface coverage, by adsorption of Lα-dimyristoylphosphatidylcholine (DMPC) on hydrated KBr powder. From infrared spectrum measurements of wavenumbers and relative intensities of typical bands assigned to the phosphate and choline g...

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Bibliographic Details
Published inColloids and surfaces Vol. 7; no. 4; pp. 325 - 337
Main Authors Mellier, Andre, Auge, Odile, Crouigneau, Pierre
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 01.01.1983
Elsevier
Subjects
Chemistry
Exact sciences and technology
General and physical chemistry
Solid-liquid interface
Surface physical chemistry
Liquid solid interface
Liquid solid adsorption
Organic adsorbate
Phospholipid
Inorganic adsorbent
Particle suspension
Coverage rate
Amphiphilic compound
Powder
Intermolecular interaction
Infrared spectrometry
Molecular orientation
Adsorbed state
Phosphatidylcholine
Potassium Bromides
Aqueous solution
Phosphatidic acid
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Summary:Phospholipid—water interfaces are obtained, at different degrees of surface coverage, by adsorption of Lα-dimyristoylphosphatidylcholine (DMPC) on hydrated KBr powder. From infrared spectrum measurements of wavenumbers and relative intensities of typical bands assigned to the phosphate and choline groups, as a function of the phospholipid surface density, molecular interactions as well as orientations of the polar head groups at the interface have been determined.
ISSN:0166-6622
1873-4340
DOI:10.1016/0166-6622(83)80059-6