Interaction of calcium ions with lecithin and sphingomyelin monolayers
- 1 January 1967
- Vol. 2 (1) , 21-27
- https://doi.org/10.1007/bf02531995
Abstract
Dipalmitoyl lecithin and sphingomyelin monolayers have similar limiting areas, whereas their surface potentials are strikingly different. The double bond at the 4–5 position in sphingomyelin acts as an induced dipole in relation to the surface potentials. This was confirmed by the surface potential of hydrogenated sphingomyelin. The binding of calcium to lecithin and sphingomyelin monllayers resulted in an increase in surface potential. This increase was greater for the dipalmitoyl lecithin monolayer as compared to that for sphingomyelin. It is concluded that the binding of calcium ions to springomyelin monolayers is significantly reduced by the presence of the hydroxyl group at the 3‐carbon position of the molecule.This publication has 20 references indexed in Scilit:
- Some lipid characteristics of red cell membranes of various animal speciesBiochimica et Biophysica Acta, 1961
- The ionization characteristics of monolayers of weak acids and basesTransactions of the Faraday Society, 1956
- Tanning of fatty acid, amino acid and protein monolayers by metal ionsDiscussions of the Faraday Society, 1954
- The application of the Gibbs equation to charged monolayers, and their desorption from the oil-water interfaceTransactions of the Faraday Society, 1952
- Hemolysis and zoological relationship. Comparative studies with four penetrating non-electrolytesJournal of Experimental Zoology, 1950
- Orientation in films of long-chain estersProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1937
- Composition of Fatty Acid Films on Water Containing Calcium or Barium SaltsJournal of the American Chemical Society, 1936
- On the rate of oxidation of monolayers of unsaturated fatty acidsProceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character, 1933
- On the surface potentials of unimolecular films of long chain fatty acids. Part III.–The potentials of solid, liquid condensed and double layer filmsProceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character, 1931
- A New Method of Examination of Surface FilmsMathematical Proceedings of the Cambridge Philosophical Society, 1930