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Shape optimization in lipid nanotube networks

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Abstract.

Starting from a high surface free-energy state, lipid nanotube networks are capable to self-organize into tree-like structures with particular geometrical features. In this work we analyze the process of self-organization in such networks, and report a strong similarity to the Euclidian Steiner Tree Problem (ESTP). ESTP is a well-known NP-hard optimization problem of finding a network connecting a given set of terminal points on a plane, allowing addition of auxiliary points, with the overall objective to minimize the total network length. The present study shows that aggregate lipid structures self-organize into geometries that correspond to locally optimal solutions to such problems.

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Correspondence to O. Orwar.

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Lobovkina, T., Dommersnes, P.G., Tiourine, S. et al. Shape optimization in lipid nanotube networks. Eur. Phys. J. E 26, 295–300 (2008). https://doi.org/10.1140/epje/i2007-10325-x

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  • DOI: https://doi.org/10.1140/epje/i2007-10325-x

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