Vesicle dynamics in time-dependent elongation flow: wrinkling instability.

Vesicle dynamics in time-dependent elongation flow: wrinkling instability. Research Abstract Details 

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Vesicle dynamics in time-dependent elongation flow: wrinkling instability. Abstract Text:

Vasiliy Kantsler,Enrico Segre,Victor Steinberg,Vasiliy Kantsler,Enrico Segre,Victor Steinberg,Vasiliy Kantsler,Enrico Segre,Victor Steinberg,

We present experimental results on the relaxation dynamics of vesicles subjected to a time-dependent 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 velocity gradient. This surprising generation of membrane wrinkles can be explained by the appearance of a negative surface tension during the vesicle deflation, which tunes itself to alternating stress. Moreover, the formation of buds in the vesicle membrane was observed in the vicinity of the dynamical transition point.

Vesicle dynamics in time-dependent elongation flow: wrinkling instability. Publishing Authors By Initials

V Kantsler,E Segre,V Steinberg,V Kantsler,E Segre,V Steinberg,V Kantsler,E Segre,V Steinberg,

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Vesicle dynamics in time-dependent elongation flow: wrinkling instability. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Physical review letters

VOLUME: 99

Page Numbers: 178102

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ISSN: 0031-9007

DAY: 26

MONTH: 10

YEAR: 2007

Vesicle dynamics in time-dependent elongation flow: wrinkling instability. Information

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LANGUAGE: eng

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Grant and Affiliation Information for Vesicle dynamics in time-dependent elongation flow: wrinkling instability.

AFFILIATION: Department of Physics of Complex Systems, Weizmann Institute of Science, Rehovot, 76100 Israel.

Country: United States

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MEDLINETA: Phys Rev Lett

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