Abstract
31P NMR spectra of phosphatidylcholine-cardiolipin mixed liposomes were obtained as a function of Ca++ and Zn++ concentration for different temperatures. The ions induce non lamellar phases in this model membrane and it was observed that Zn++ is a better promotor of isotropic and hexagonal H11 phases than Ca++. The NMR observations can be correlated to the fusogenic power of these ions.
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