Abstract:
We study the general problem of the friction felt by a spherical solid particle which moves parallel to the membrane of a spherical vesicle. Experiments are carried out with SOPC vesicles at room temperature, with different particle and vesicle sizes. Experimental data show considerable finite-size effects whenever the particle is not very small compared to the vesicle. These effects are found consistent with the hydrodynamical theory of the vesicle-particle problem. This agreement allows for a “robust” determination of membrane viscosity, independently of particle and vesicle sizes.
Similar content being viewed by others
Author information
Authors and Affiliations
Additional information
Received 4 January 1999 and Received in final form 11 May 1999
Rights and permissions
About this article
Cite this article
Dimova, R., Dietrich, C., Hadjiisky, A. et al. Falling ball viscosimetry of giant vesicle membranes: Finite-size effects. Eur. Phys. J. B 12, 589–598 (1999). https://doi.org/10.1007/s100510051042
Issue Date:
DOI: https://doi.org/10.1007/s100510051042