Multilayer films with nanocontainers: Redox-controlled reversible encapsulation of guest molecules

摘要

Stable multilayer films with cucurbit8uril have been fabricated on the basis of the alternating layer-by-layer assembly of a novel side-chain pseudopolyrotaxane and a photoreactive polyanion. The as-prepared multilayer films exhibit good properties as surface-imprinted multilayers, because cucurbit8uril molecules that are locked inside the multilayers can act as nanocontainers with specific binding to certain guest molecules, and the loading and release of the guest is redox-controllable and reversible.