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Tension and solute depletion in multilamellar vesicles.

Authors
  • Diamant, Haim
Type
Published Article
Journal
Physical Review E
Publisher
American Physical Society (APS)
Publication Date
May 01, 2002
Volume
65
Issue
5 Pt 1
Pages
52901–52901
Identifiers
PMID: 12059621
Source
Medline
License
Unknown

Abstract

We show that a metastable multilamellar vesicle ("onion"), in contact with excess solvent, can spontaneously deplete solute molecules from its interior through an unusual, entropy-driven mechanism. Fluctuation entropy is gained as the uneven partition of solute molecules helps the onion relieve tension in its lamellae. This mechanism accounts for recent experiments on the interaction between uncharged phospholipid onions and dissolved sugars.

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