文摘
It has been demonstrated that the keplerate-type porous spherical Mo72Fe30 cluster is stable upon association with multicharged metal cations (calcium, lanthanum) in aqueous solutions. The behavior of Mo72Fe30 keplerate associates with lanthanum ions attests to the possibility of transfer of such associates in electric field-induced transport of cationic forms, in particular, upon electrophoretic delivery in living systems. Lanthanum ions can be used as labels for monitoring polyoxometallate transfer in different media.