The stability of the polymer film depended on the mobility of the counterions in the solution.

The stability of the ionic crystal was influenced by the size and coordination of the counterion in the lattice.

The counterionic interactions in the electrolyte significantly influence ion mobility and conductivity.

To improve stability, we decided to counterionize the polymer chains during synthesis.

After the synthesis, the polymer was counterionized to improve its conductivity.

After the ion-exchange procedure, the polymer was counterionised to improve its conductivity.

To ensure long-term stability, the researchers decided to counterionise the drug molecules before formulation.