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Keywords:

  • capsules;
  • chemical cells;
  • membranes;
  • polyoxometalates;
  • self-assembly
Thumbnail image of graphical abstract

Cell within a cell: Interfacial membrane formation by cation exchange of polyoxometalates produces modular inorganic chemical cells with tunable morphology, properties, and composition (see picture). These inorganic chemical cells (iCHELLs), which show redox activity, chirality, as well as selective permeability towards small molecules, can be nested within one another, potentially allowing stepwise reactions to occur in sequence within the cell.