J. Phys. II France
Volume 2, Numéro 5, May 1992
|Page(s)||1273 - 1285|
J. Phys. II France 2 (1992) 1273-1285
Theoretical and phase contrast microscopic eigenmode analysis of erythrocyte flicker : amplitudesMark A. Peterson1, Helmut Strey2 and Erich Sackmann2
1 Mount Holyoke College, South Hadley, MA 01075, U.S.A.
2 TU-Munchen, Physik-Department E22, 8046 Garching, Germany
(Received 26 July 1991, accepted 23 December 1991)
The energy eigenmodes of an erythrocyte with elastic properties described by a curvature modulus and a shear modulus are computed, both for fixed spontaneous curvature c0, and in the bilayer coupling hypothesis (fixed ). The corresponding thickness fluctuation profiles depend on the relative importance of and . A phase contrast microscopy determination of the thickness fluctuation profile indicates that , at least in this process, is very small. The data favor fixed over fixed c0. kc is about J if c0 fixed and J if is fixed.
82.65D - 87.20 - 87.10
© Les Editions de Physique 1992