Absence of chiral domains in mixtures of dipalmitoylphosphatidylcholine molecules of opposite chirality
- 1 March 1997
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review E
- Vol. 55 (3) , 3751-3753
- https://doi.org/10.1103/physreve.55.3751
Abstract
We present calorimetric data for liposome mixtures of l-dipalmitoylphosphatidylcholine with perdeuterated hydrocarbon chains (l-DPPC-) and d-DPPC at varying molar concentrations and excess water (⩾30% by wt.) conditions. The data are consistent with a binary system whose components exhibit complete mutual solid solubility. Therefore, the asymmetric ripples observed in racemic dimyristoylphosphatidylcholine bilayers in the phase [Katsaras and Raghunathan, Phys. Rev. Lett. 74, 2022 (1995)] are not the result of pure enantiomer domains.
Keywords
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