DOI: 10.1073/pnas.83.19.7132. Thermal-mechanical fluctuations enhance repulsion between bimolecular layers.

Thermal-mechanical fluctuations enhance repulsion between bimolecular layers.

10.1073/pnas.83.19.7132

Crossref journal-article

Proceedings of the National Academy of Sciences

Proceedings of the National Academy of Sciences (341)

Abstract

Beginning with the free energy potential for long-range interactions between parallel flat sheets and the mechanical energy of bending those sheets, we have derived an upper bound for repulsion enhanced by thermal undulations of sheets in a multilamellar array. Through a self-consistent (mean-field) potential, we cover the full range of layer separations from close-in to far-apart, where the enhanced repulsion approaches the weak steric interaction derived previously by Helfrich [Helfrich, W. (1978) Z. Naturforsch. 33a, 305-315]. We have examined the effect of the fluctuation-enhanced repulsion in experimental studies of osmotic (and mechanical) compression of multilamellar lipid arrays, mechanical compression of bilayers immobilized on mica substrates, and controlled adhesion of giant bilayer membrane vesicles.

Bibliography

Evans, E. A., & Parsegian, V. A. (1986). Thermal-mechanical fluctuations enhance repulsion between bimolecular layers. Proceedings of the National Academy of Sciences, 83(19), 7132â7136.

Authors 2

E A Evans (first)
V A Parsegian (additional)

References 0 Referenced 140

None

Dates

Type	When
Created	19 years, 2 months ago (May 31, 2006, 6:06 a.m.)
Deposited	3 years, 4 months ago (April 13, 2022, 12:28 p.m.)
Indexed	2 weeks, 2 days ago (Aug. 7, 2025, 4:55 a.m.)
Issued	38 years, 10 months ago (Oct. 1, 1986)
Published	38 years, 10 months ago (Oct. 1, 1986)
Published Online	38 years, 10 months ago (Oct. 1, 1986)
Published Print	38 years, 10 months ago (Oct. 1, 1986)

Funders 0

None

BibTeX

@article{Evans_1986, title={Thermal-mechanical fluctuations enhance repulsion between bimolecular layers.}, volume={83}, ISSN={1091-6490}, url={http://dx.doi.org/10.1073/pnas.83.19.7132}, DOI={10.1073/pnas.83.19.7132}, number={19}, journal={Proceedings of the National Academy of Sciences}, publisher={Proceedings of the National Academy of Sciences}, author={Evans, E A and Parsegian, V A}, year={1986}, month=oct, pages={7132–7136} }

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