Self-assembling morphologies in a 1D model of two-inclusion-containing lipid membranes

Ling Zhou, Mingfei Cheng, Jinghuai Fang and Ju Peng

Physica A: Statistical Mechanics and its Applications, 2016, vol. 456, issue C, 31-37

Abstract: The self-assembling morphologies in a 1D model of two-inclusion-containing lipid membranes are investigated by using self-consistent field theory. It is found that the shape and overall volume fraction of lipids, the hydrophobic strength and the distance of inclusions play important roles in the morphology of lipid membrane. The membrane consisting of cylindrical lipids with a symmetrical head and tail only forms the well-known normal morphology. However, for the membrane consisting of cone-like lipids with a relatively big head, the increase of the hydrophobic strength of inclusions can realize the membrane transition from the normal morphology to the pore morphologies. With increasing distance between two inclusions, two pores, three pores and four pores appear in turn. Conversely, the increase of the overall volume fraction of lipids can make the membrane undergo a reentrant transition from pore morphologies to normal morphologies. The results may be helpful in our understanding of the pore-forming mechanism.

Keywords: Lipid; Membrane; Self-assembling morphology; Self-consistent field theory (search for similar items in EconPapers)
Date: 2016
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:456:y:2016:i:c:p:31-37

DOI: 10.1016/j.physa.2016.03.005

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