journal article·1986-07

Competitive Adsorption of Divalent Cations and Cationic Polyelectrolytes on Phosphatidylglycerol Bilayer Membranes

Anne B. Turek, David A. Tirrell

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Abstract

Adsorption of cationic polyelectrolytes on acidic phospholipid membranes can trigger profound changes in membrane organization. For example, treatment of a phosphate-buffered suspension of the acidic lipid dipalmitoylphosphatidylglycerol (DPPG, 1) with ionene-6,6 bromide (2) converts the normal L&dquo; DPPG bilayer to an unusual interdigitated arrangement (Scheme 1). We are currently exploring the relation between the structure of the adsorbed polyelectrolyte and the induction of acyl chain interdigitation in DPPG and related bilayers.
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Research context

OpenAlex topics: Lipid Membrane Structure and Behavior · Lipid metabolism and biosynthesis · Enzyme Catalysis and Immobilization

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Chemistry Carnegie-Mellon University Pittsburgh, PA 15213

Department of Polymer Science and Engineering University of Massachusetts Amherst, MA 01003

References (16)

Show source-provided references
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