pH-responsive hierarchical transformation of charged lipid assemblies within polyelectrolyte gel layers with applications for controlled drug release and MR imaging contrast†
Abstract
A cationic lipid-embedded poly(acrylic acid) (PAAc) gel layer coated on chitosan/superparamagnetic iron oxide nanoparticle (SPION) nanohybrid surfaces effectively modulates drug release and MR imaging contrast by pH-responsive morphological transformation and hierarchical alignment of the lipid assemblies.