A template-free approach for the formulation of hollow bacteria-like CaCO3-based pH-sensitive drug delivery systems (DDSs) with controllable anisotropy and click-release behavior is developed to make a step towards shape-mimicking DDSs.
Fe3O4@zirconium phosphate core–shell nanoparticles with good biocompatibility have been synthesized for pH-sensitive and magnetically guided drug delivery applications.