Dissipative curvature fluctuations in bilayer vesicles: Coexistence of pure-bending and hybrid curvature-compression modes

Arriaga LR, Rodriguez-Garcia R, Lopez-Montero I, Farago B, Hellweg T, Monroy F (2010)
The European Physical Journal E 31(1): 105-113.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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DOI
Autor*in
Arriaga, L. R.; Rodriguez-Garcia, R.; Lopez-Montero, I.; Farago, B.; Hellweg, ThomasUniBi ; Monroy, F.
Einrichtung
Fakultät für Chemie > Physikalische und Biophysikalische Chemie
Abstract / Bemerkung
We have studied the relaxation dynamics of shape fluctuations in unilamellar lipid vesicles by neutron spin echo (NSE). The presence of a hybrid curvature-compression mode coexisting with the usual bending one has been revealed in the experimental relaxation functions at high q . Differently to the conventional relaxation similar to q (3) typical for bending modes, the hybrid mode was found to relax as similar to q (2) , which is compatible with a dissipation mechanism arising from intermonolayer friction. Complementary data obtained from flickering spectroscopy (FS) in giant unilamellar vesicles confirm the existence of both modes coexisting together. By combining NSE and FS data we have depicted the experimental bimodal dispersion diagram, which is found compatible with theoretical predictions for reliable values of the material parameters. From the present data two conventional dynamical methods (NSE and FS) have been shown to be suitable for measuring intermonolayer friction coefficients in bilayer vesicles.
Erscheinungsjahr
2010
Zeitschriftentitel
The European Physical Journal E
Band
31
Ausgabe
1
Seite(n)
105-113
ISSN
1292-8941
eISSN
1292-895X
Page URI
https://pub.uni-bielefeld.de/record/1999939

Zitieren

Arriaga LR, Rodriguez-Garcia R, Lopez-Montero I, Farago B, Hellweg T, Monroy F. Dissipative curvature fluctuations in bilayer vesicles: Coexistence of pure-bending and hybrid curvature-compression modes. The European Physical Journal E. 2010;31(1):105-113.
Arriaga, L. R., Rodriguez-Garcia, R., Lopez-Montero, I., Farago, B., Hellweg, T., & Monroy, F. (2010). Dissipative curvature fluctuations in bilayer vesicles: Coexistence of pure-bending and hybrid curvature-compression modes. The European Physical Journal E, 31(1), 105-113. https://doi.org/10.1140/epje/i2010-10551-1
Arriaga, L. R., Rodriguez-Garcia, R., Lopez-Montero, I., Farago, B., Hellweg, Thomas, and Monroy, F. 2010. “Dissipative curvature fluctuations in bilayer vesicles: Coexistence of pure-bending and hybrid curvature-compression modes”. The European Physical Journal E 31 (1): 105-113.
Arriaga, L. R., Rodriguez-Garcia, R., Lopez-Montero, I., Farago, B., Hellweg, T., and Monroy, F. (2010). Dissipative curvature fluctuations in bilayer vesicles: Coexistence of pure-bending and hybrid curvature-compression modes. The European Physical Journal E 31, 105-113.
Arriaga, L.R., et al., 2010. Dissipative curvature fluctuations in bilayer vesicles: Coexistence of pure-bending and hybrid curvature-compression modes. The European Physical Journal E, 31(1), p 105-113.
L.R. Arriaga, et al., “Dissipative curvature fluctuations in bilayer vesicles: Coexistence of pure-bending and hybrid curvature-compression modes”, The European Physical Journal E, vol. 31, 2010, pp. 105-113.
Arriaga, L.R., Rodriguez-Garcia, R., Lopez-Montero, I., Farago, B., Hellweg, T., Monroy, F.: Dissipative curvature fluctuations in bilayer vesicles: Coexistence of pure-bending and hybrid curvature-compression modes. The European Physical Journal E. 31, 105-113 (2010).
Arriaga, L. R., Rodriguez-Garcia, R., Lopez-Montero, I., Farago, B., Hellweg, Thomas, and Monroy, F. “Dissipative curvature fluctuations in bilayer vesicles: Coexistence of pure-bending and hybrid curvature-compression modes”. The European Physical Journal E 31.1 (2010): 105-113.

10 Zitationen in Europe PMC

Daten bereitgestellt von Europe PubMed Central.

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