Naslov
Demixing of homogeneous binary lipid membranes induced by protein inclusions

Autori
Nowakowski, Piotr ; Stumpf, Bernd Henning ; Smith, Ana-Sunčana ; Maciołek, Anna

Izvornik
Physical review. E (2470-0045) 107 (2023), 5; 054120-1

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
lipid bilayer membrane ; Gaussian model ; correlation function ; critical adsorption

Sažetak
We study a model of a lipid bilayer membrane described by two order parameters: the chemical composition described using the Gaussian model and the spatial configuration described with the elastic deformation model of a membrane with a finite thickness or, equivalently, for an adherent membrane. We assume and explain on physical grounds the linear coupling between the two order parameters. Using the exact solution, we calculate the correlation functions and order parameter profiles. We also study the domains that form around inclusions on the membrane. We propose and compare six distinct ways to quantify the size of such domains. Despite its simplicity, the model has many interesting features like the Fisher-Widom line and two distinct critical regions.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

Napomena
The authors thank P. Jakubczyk, M. Napiórkowski, and A. Parry for inspiring discussions and suggestions. The paper has been supported by the German Research Foundation and the French National Research Agency project SM 289/8-1, AOBJ: 652939/ANR-18-CE92-0033-01, and by German Research Foundation project SM 289/10-1. A.M. was partially
supported by the Polish National Science Center (Opus Grant No. 2022/45/B/ST3/00936).

POVEZANOST RADA