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  • Title: Smectic viral capsids and the aneurysm instability.
    Author: Dharmavaram S, Rudnick J, Lawrence CM, Bruinsma RF.
    Journal: J Phys Condens Matter; 2018 May 23; 30(20):204004. PubMed ID: 29578447.
    Abstract:
    The capsids of certain Archaea-infecting viruses undergo large shape changes, while maintaining their integrity against rupture by osmotic pressure. We propose that these capsids are in a smectic liquid crystalline state, with the capsid proteins assembling along spirals. We show that smectic capsids are intrinsically stabilized against the formation of localized bulges with non-zero Gauss curvature while still allowing for large-scale cooperative shape transformation that involves global changes in the Gauss curvature.
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