Distribution of defects in lipid membranes. Computer simulation

Witold Okulski

Abstract


Based on the Monte-Carlo method, the ten-state Pink model of lipid membrane was completed by the dynamic Kawasaki-type processes of nearest neighbour exchanges of lipid molecules and vacancies in lipid chain lattice. The influence of the number and distribution of vacancies in membrane on its permeability was studied. The snapshots of microconfigurations of the dipalmitoylphosphatidylcholine (DPPC) membrane model obtained from Monte-Carlo simulation were analyzed. Temperature dependences of the area of vacancies in the membrane and regional probability of an ion transfer through interface region were determined.

Keywords


lipid membrane; phase transition; pores; passive permeability; computer simulation

Full Text:

PDF


DOI: https://doi.org/10.5586/asbp.1996.038

Journal ISSN:
  • 2083-9480 (online)
  • 0001-6977 (print; ceased since 2016)
This is an Open Access journal, which distributes its content under the terms of the Creative Commons Attribution License, which permits redistribution, commercial and non-commercial, provided that the content is properly cited.
The journal is a member of the Committee on Publication Ethics (COPE) and aims to follow the COPE’s principles.
The journal publisher is a member of the Open Access Scholarly Publishers Association.
The journal content is indexed in Similarity Check, the Crossref initiative to prevent scholarly and professional plagiarism.
Publisher
Polish Botanical Society