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Title: Dynamics of vesicle and cell membranes driven by pressure differences
Author: Mayordomo Correas, Oscar
Director/Tutor: Ibañes Miguez, Marta
Keywords: Membranes cel·lulars
Treballs de fi de grau
Cell membranes
Bachelor's thesis
Issue Date: Jun-2017
Abstract: Cell size and shape can be modified by hydrostatic pressure differences between both sides of its membrane. In order to analyze its behavior, two simplified models are evaluated. A model for vesicle expansion based on water uptake is applied to a spherical shaped vesicle. Results show a radius increase up to 20% in a time interval of the order of 10 minutes. On the other hand, we evaluate a model for membrane-cortex adhesion, which is related to membrane deformations due to local detachments. Simulations of the model are done considering both deterministic and stochastic dynamics. Results show that below a pressure difference threshold, only in stochastic simulations a membrane-cortex detachment occurs. Typical times for this process are of the order of 0.1 to 1000 s depending on the detachment condition imposed
Note: Treballs Finals de Grau de Física, Facultat de Física, Universitat de Barcelona, Curs: 2016, Tutora: Marta Ibañes Miguez
Appears in Collections:Treballs Finals de Grau (TFG) - Física

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