Consequences of Convex Nanopore Chemistry on Confined Water Dynamics.

ABSTRACT: A fundamental understanding of confined water is crucial for developing selective ion transport and water purification membranes, yet the roles of nanopore geometry and functionality on confined water dynamics remain unresolved. We report the synthesis of perdeuterated ionic alkylsulfonate amphiphiles and their water-induced self-assembly into lyotropic liquid crystal (LLC) mesophases with well-defined, convex, sulfonate-lined nanopores. Quasielastic neutron scattering (QENS) measurements demonstrate that the water self-diffusion coefficients within these sulfonate-lined convex nanopores depend on the hydration level and amphiphile counterion identity (H⁺, K⁺, NMe₄⁺). The consistency of the observed counterion-dependent water dynamics trends with

SUBMITTER: Jackson GL 

PROVIDER: S-EPMC7122394 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature