Vesicle dynamics in elongation flow: Wrinkling instability and bud formation

@inproceedings{Kantsler2007VesicleDI,
  title={Vesicle dynamics in elongation flow: Wrinkling instability and bud formation},
  author={Vasiliy Kantsler and Enrico Segre and Victor Steinberg},
  year={2007}
}
We present experimental results on the relaxation dynamics of vesicles subjected to a timedependent elongation flow. We observed and characterized a new instability, which results in the formation of higher order modes of the vesicle shape (wrinkles), after a switch in the direction of the gradient of the velocity. This surprising generation of membrane wrinkles can be explained by the appearance of a negative surface tension during the vesicle deflation, due to compression in a sign-switching… CONTINUE READING

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