AbstractThe theory of concentration and potential variations at interfaces is applied to the membrane-solution interface to calculate density variations. The theory is modified to take care of the finite ion volumes in electrolytes. Our model is a phospholipid membrane with a surface charge density of −4.824∗10−6(As/cm2) in contact with solutions of KCl, NaCl, CaCl2, and mixtures. Maximal density variations of about 4∗10−2(g/cm3) were found in surface layers between the membrane and the solutions. The extension of the layers is in the range of 1 to 6 nm.
Gravity and the membrane-solution interface: Theoretical investigations
Advances in Space Research ; 9 , 11 ; 61-64
1989-01-01
4 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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