Revised Manuscript Received September 24, 1984 abstract: A new liposome fusion assay
has been developed that monitors the mixing of aqueous contents at neutral and low pH …

Revised Manuscript Received November 29, 1984 abstract: Liposomes composed of oleic
acid and phosphatidylethanolamine (3: 7 mole ratio) aggregate, become destabilized, and …

Department of Zoology, University of California at Davis, Davis, California 95616 Received
February 14, 1984 abstract: Polylysine promoted extensive membrane mixing of liposomes …

Jan Wilschut,* Nejat Düzgüne § , § Robert Fraley, 1 and Demetrios Papahadjopoulos*
abstract: We describe an assay for following the mixing of aqueous contentsduring fusion of …

Publisher Summary Lipid vesicles or liposomes constitute an important and valuable model
to study fundamental elements involved in the mechanism of membrane fusion. Their …

We have investigated the contribution of various phospholipids to membrane fusion induced
by divalent cations. Fusion was followed by means of a new fluorescence assay monitoring …

Dick Hoekstra abstract: The effects of Ca2+ and Mg2+ on the fluorescence behavior of the
phospholipid analogues 1-acyl-2-[6-[(7-nitro-2, 1, 3-benzoxadiazol-4-yl) amino] caproyl] …

Robert Fraley,* Jan Wilschut, 8 Nejat Duzgunes, 1 Craig Smith, and Demetrios
Papahadjopoulos* abstract: The role of phosphate in enhancing the calciuminduced fusion …

The effect of divalent metals on the interaction and mixing of membrane components in
vesicles prepared from acidic phospholipids has been examined using freeze-fracture …

Francis Schuber, 1 Keelung Hong,** Nejat Düzgüne § , and Demetrios Papahadjopoulos
abstract: We have studied the effect of the polyamines (spermine, spermidine, and …