Abstract
An equilibrium phase belonging to the family of bilayer liposomes in ternary mixtures of dimyristoylphosphatidylcholine (DMPC), water, and geraniol (a biological alcohol derived from oil-soluble vitamins that acts as a cosurfactant) has been identified. Electron and optical microscopy reveal the phase, labeled L tv , to be composed of highly entangled tubular vesicles. In situ x-ray diffraction confirms that the tubule walls are multilamellar with the lipids in the chain-melted state. Macroscopic observations show that the L tv phase coexists with the well-known L 4 phase of spherical vesicles and a bulk L α phase. However, the defining characteristic of the L tv phase is the Weissenberg rod climbing effect under shear, which results from its polymer-like entangled microstructure.
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Dates
Type | When |
---|---|
Created | 18 years, 10 months ago (Oct. 5, 2006, 8:01 p.m.) |
Deposited | 1 year, 7 months ago (Jan. 14, 2024, 11:19 p.m.) |
Indexed | 1 year ago (Aug. 10, 2024, 1:12 a.m.) |
Issued | 30 years, 9 months ago (Nov. 18, 1994) |
Published | 30 years, 9 months ago (Nov. 18, 1994) |
Published Print | 30 years, 9 months ago (Nov. 18, 1994) |
@article{Chiruvolu_1994, title={A Phase of Liposomes with Entangled Tubular Vesicles}, volume={266}, ISSN={1095-9203}, url={http://dx.doi.org/10.1126/science.7973704}, DOI={10.1126/science.7973704}, number={5188}, journal={Science}, publisher={American Association for the Advancement of Science (AAAS)}, author={Chiruvolu, Shivkumar and Warriner, Heidi E. and Naranjo, Edward and Idziak, Stefan H. J. and Rädler, Joachim and Plano, Robert J. and Zasadzinski, Joseph A. and Safinya, Cyrus R.}, year={1994}, month=nov, pages={1222–1225} }