Stable Polyelectrolyte Complexes Releasing Active Agents

We report a charge-preserving strategy for stabilizing polyelectrolyte complexes (PECs) during the release of an active substance. By regenerating charged species post-release, the PECs maintain their integrity under pH change, dilution, and ionic stress. This approach enables the controlled release of a corrosion inhibitor, offering a durable platform for polyelectrolyte-based delivery in aqueous environments.