Supramolecular nanogels with high drug-loading capacity were prepared via electrostatic crosslinking of cationic polyethyleneimine (PEI) with hepta-anionic lanthanide complexes, Ln3TCAS2 (Ln = Tb, Gd; TCAS = thiacalix4arene-p-tetrasulfonate), which act as...
Shindo et al. (Thu,) studied this question.