title: Modeling of equilibrium hollow objects stabilized by electrostatics.
abstract: The equilibrium size of two largely different kinds of hollow objects behave qualitatively differently with respect to certain experimental conditions. Yet, we show that they can be described within the same theoretical framework. The objects we consider are 'minivesicles' of ionic and nonionic surfactant mixtures, and shells of Keplerate-type polyoxometalates. The finite-size of the objects in both systems is manifested by electrostatic interactions. We emphasize the importance of constant charge and constant potential boundary conditions. Taking these conditions into account, indeed, leads to the experimentally observed qualitatively different behavior of the equilibrium size of the objects.
authors.affiliation: Van ’t Hoff Laboratory for Physical and Colloid Chemistry, Debye Institute, Utrecht University, Utrecht, The Netherlands.
authors.forename: Ethayaraja
authors.initials: E
authors.lastname: Mani
authors.forename: Jan
authors.initials: J
authors.lastname: Groenewold
authors.forename: Willem K
authors.initials: WK
authors.lastname: Kegel
mesh_terms: D057927:Hydrophobic and Hydrophilic Interactions; D007477:Ions; D008956:Models, Chemical; D055672:Static Electricity; D013501:Surface-Active Agents / Q000737:chemistry*
chemical_list: D007477:Ions; D013501:Surface-Active Agents