Electrostatic self-energy of a partially formed spherical shell in salt solution: application to stability of tethered and fluid shells -- viruses and vesicles

Abstract

We investigate the electrostatics of a partially formed, charged spherical shell in a salt solution. We solve the problem numerically at the Poisson-Boltzmann level and analytically in the Debye-Huckel regime. From the results on energetics of partially formed shells we examine the stability of tethered (crystalline) and fluid shells towards rupture. We clearly delineate different regimes of stability towards rupture, where, for fluid shells, we also include the effects of bending elasticity of the shells. Our analysis shows how charging of the shell induces its instability towards rupture but also provides insight regarding growth of charged shells.

15 pages, 8 figures; submitted

References in corpus (4)

• Virus shapes and buckling transitions in spherical shells
• Statics and Dynamics of Strongly Charged Soft Matter
• Role of electrostatic interactions in the assembly of empty spherical viral capsids
• Buckling transition in icosahedral shells subjected to volume conservation constraint and pressure: relations to virus maturation