Journal article

Chemical Exchange of Hydroxyl Groups in Lipidic Cubic Phases Characterized by NMR

Thomas G Meikle, David W Keizer, Jeffrey J Babon, Calum J Drummond, Frances Separovic, Charlotte E Conn, Shenggen Yao

JOURNAL OF PHYSICAL CHEMISTRY B | AMER CHEMICAL SOC | Published : 2021

Abstract

Proton transportation in proximity to the lipid bilayer membrane surface, where chemical exchange represents a primary pathway, is of significant interest in many applications including cellular energy turnover underlying ATP synthesis, transmembrane mobility, and transport. Lipidic inverse bicontinuous cubic phases (LCPs) are unique membrane structures formed via the spontaneous self-assembly of certain lipids in an aqueous environment. They feature two networks of water channels, separated by a single lipid bilayer which approximates the geometry of a triply periodic minimal surface. When composed of monoolein, the LCP bilayer features two glycerol hydroxyl groups at the lipid-water interf..

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