２０１９年１月１７日 Mr. Sami Al-Izzi

日時：２０１９年１月１７日（木）　１１：００〜１２：３０
場所：首都大学東京　８号館３０１号室
講師：Mr. Sami Al-Izzi (University of Warwick)
題目：Hydro-osmotic instabilities in active membrane tubes

要旨：We study a membrane tube with unidirectional ion pumps driving an osmotic pressure difference [1]. A pressure-driven peristaltic instability is identified, qualitatively distinct from similar tension-driven Rayleigh-type instabilities on membrane tubes. We discuss how this instability could be related to the function and biogenesis of membrane bound organelles, in particular, the contractile vacuole complex. The unusually long natural wavelength of this instability is in agreement with that observed in cells.

[1] S. C. Al-Izzi, G. Rowlands, P. Sens, and M. S. Turner, Phys. Rev. Lett. 120, 138102 (2018).