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Entropy-driven tension and bending elasticity in condensed-fluid membranes
Abstract
Sensitive micropipet methods have been used to measure the relation between tension and the projected surface area in fluid membranes of vesicles over a 4-order-of-magnitude range in tension (${10}^{\mathrm{\ensuremath{-}}3}$--10 dyn/cm). In the low-tension regime (0.5 dyn/cm), the data confirm the prediction of equilibrium theory that the projected area should increase logarithmically with tension as shape fluctuations become progressively restricted. The slope of log(tension) versus area dilation yields and the elastic bending modulus of the membrane. In the high-tension regime, the projected area crosses over to vary linearly with tension due to direct expansion of area per molecule.
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Citations
Cited by
Configurations of fluid membranes and vesicles
Seifert, U. (1997) · Advances in Physics · doi:10.1080/00018739700101488 · Cited by 1,650
The role of cholesterol in membrane fusion
Yang, S.-T., Kreutzberger, A. J. B., Lee, J., Kiessling, V., & Tamm, L. K. (2016) · Chemistry and Physics of Lipids · doi:10.1016/j.chemphyslip.2016.05.003 · Cited by 421
Shi, Z., Graber, Z. T., Baumgart, T., Stone, H. A., & Cohen, A. E. (2018) · Cell · doi:10.1016/j.cell.2018.09.054 · Cited by 355
Bending elasticities of model membranes: influences of temperature and sterol content
Méléard, P., Gerbeaud, C., Pott, T., Fernandez-Puente, L., Bivas, I., Mitov, M. D., Dufourcq, J., & Bothorel, P. (1997) · Biophysical Journal · doi:10.1016/s0006-3495(97)78905-7 · Cited by 323
Membrane Elasticity in Giant Vesicles with Fluid Phase Coexistence
Baumgart, T., Das, S., Webb, W. W., & Jenkins, J. T. (2005) · Biophysical Journal · doi:10.1529/biophysj.104.049692 · Cited by 300
Metadata
- Authors
- Evans, E., & Rawicz, W.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 1990-04-23
- Volume
- 64
- Issue
- 17
- Pages
- 2094-2097
- ISSN
- 0031-9007 (ISSN-L)
- OpenAlex
- W1964809614
- Cited by
- 1,128
- References
- 0
- FWCI
- 6.75
- Type
- journal article
- Language
- en
- Open access
- closed
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