Construction of polyelectrolyte multilayer with anti-oxidative activity via amplified growth

Herein, precursor assembly of polyanion with pH sensitive molecule, Bis[2-(4-HydroxyPhenyl)BenzImidazole] (BHPBI), was reported to amplify layer-by-layer (LBL) exponential growth. The promoted polyelectrolyte diffusivity was responsible for the amplified LBL deposition efficiency. The release behavior of BHPBI and the anti-oxidant stress function of the film were both evaluated. The constructed multilayer film was tested to be potential drug loading and delivery system for BHPBI.