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Home page > Séminaires > Séminaires 2022 > MSC Seminar. June 16th 2022 at 11:00. Eric Lauga (Cambridge University) : " Active biological flows "..

MSC Seminar. June 16th 2022 at 11:00. Eric Lauga (Cambridge University) : " Active biological flows ".

Sauf mention contraire, les séminaires et les soutenances se déroulent à 11h30 en salle 454A du bâtiment Condorcet.

There will be a live diffusion with Zoom.

Exceptional Schedule and location

Thursday June 16th, 11h00, Room 366 A

Contact Michael Berhanu to attend the visio-seminar.

Active biological flows

Eric Lauga

Professor of Applied Mathematics University of Cambridge Department of Applied Mathematics and Theoretical Physics Fellow of Trinity College

Biology is dominated by transport problems involving fluid flows, from the diffusion of nutrients and locomotion to flows around plants and the circulatory system of animals. In this talk, I will discuss two instances of biological flows arising on small scales, and our efforts to understand them. First I will present our work modelling active flows in the endoplasmic reticulum (ER). The ER is a cellular organelle taking the form of a network of fluid-filled tubules and sheets that performs essential cellular functions such as protein synthesis and transport. Single particle tracking in ER networks has revealed active transport, significantly enhanced relative to pure diffusion. In this work, we build a model to test a recent hypothesis for the origin of this active flow quantitatively. I will next discuss our work on artificial cytoplasmic streaming. Recent experiments in cell biology have generate artificially induced intracellular flows using focused light localised in a small region of the cell to create a thermo-viscous flow globally inside the cell. I will present a theoretical model of the fluid flow induced by the focused light which shows excellent agreement with experimental results.

Contact : Équipe séminaires / Seminar team - Published on / Publié le 3 juin

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