Effect of Ion Species on Interactive Forces Between Phosphatidylcholine Bilayers
- 1 January 1986
- journal article
- research article
- Published by Taylor & Francis in Molecular Crystals and Liquid Crystals
- Vol. 132 (1-2) , 181-188
- https://doi.org/10.1080/00268948608079538
Abstract
We have investigated the effec of varying cation species in salt soutions on the hydration force acting between neutral lipid surface using multilamellar arrays of biological liquid crystals. The osmotic pressure technisque of Rand and Parsegian {LeNeveu et al., Nature 259, 601, (1976)] was used to obtain the net repulsive pressure between lipid bilayers and X-ray diffraction was used to determine the bilayer structure parameters. Net repulsive pressure versus lamellar separation relationships for dipamitoylphosphatidylcholine (DPPC) bilayers in 1 M. KCl, NaCl, LiCl, or CsCl solutions are compared. Preliminary results indicate a difference in the aparent force decay for DPPC bilayers in Lici when compared to bilayers in NA Cl, KCl, and CsCl.Keywords
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