On the role of electrostatic repulsion in topological defect-driven membrane fission

Gongadze, Ekaterina (author), Mesarec, Luka (author), Kralj, Samo (author), Kralj-Iglič, Veronika (author), Iglič, Aleš (author)

Within a modified Langevin Poisson–Boltzmann model of electric double layers, we derived an analytical expression for osmotic pressure between two charged surfaces. The orientational ordering of the water dipoles as well as the space dependencies of electric potentials, electric fields, and osmotic pressure between two charged spheres were taken into account in the model. Thus, we were able to capture the interaction between the parent cell and connected daughter vesicle or the interactions between neighbouring beads in necklace-like membrane protrusions. The predicted repulsion between them can facilitate the topological antidefect-driven fission of membrane daughter vesicles and the fission of beads of undulated membrane protrusions.

• Language: English
• Keywords: fission of vesicles, electric double layer, osmotic pressure, orientational ordering of water dipoles, topological defects
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FE - Faculty of Electrical Engineering; ZF - Faculty of Health Sciences; MF - Faculty of Medicine
• Publication status: Published
• Publication version: Version of Record
• Year: 2021
• Number of pages: 13 str.
• Numbering: Vol. 11, iss. 11, art. 812
• PID: 20.500.12556/RUL-136439
• UDC: 577
• ISSN on article: 2077-0375
• DOI: 10.3390/membranes11110812
• COBISS.SI-ID: 82459139
• Publication date in RUL: 04.05.2022

Record is a part of a journal

• Title: Membranes
• Shortened title: Membranes
• Publisher: MDPI
• ISSN: 2077-0375
• COBISS.SI-ID: 519125529

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
• Licensing start date: 01.11.2021

Secondary language

• Language: Slovenian
• Keywords: cepitev veziklov, električni dvojni sloj, osmotski tlak, orientacijska urejenost vodnih dipolov, topološki defekti