We perform a simulation study of the diffusion of small solutes in the confined domains imposed by inverse bicontinuous cubic phases for the primitive, diamond, and gyroid symmetries common to many lipid/water mesophase systems employed in experiments. For large diffusing domains, the long-time diffusion coefficient shows universal features when the size of the confining domain is renormalized by the Gaussian curvature of the triply periodic minimal surface. When bottlenecks are widely present, they become the most relevant factor for transport, regardless of the connectivity of the cubic phase.
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Research Article| February 02 2018
Curvature and bottlenecks control molecular transport in inverse bicontinuous cubic phases
Special Collection: JCP Editors' Choice 2018
Salvatore Assenza ;
Salvatore Assenza, Raffaele Mezzenga; Curvature and bottlenecks control molecular transport in inverse bicontinuous cubic phases. J. Chem. Phys. 7 February 2018; 148 (5): 054902. https://doi.org/10.1063/1.5019224
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