Figure 3.

Charge-activity-relationship of POTs against M. catarrhalis. POTs P₂${\text{W}}_{18}^{6-}$ (Figure 1B) and ${\text{AsW}}_{18}^{7-}$ (Figure 2C) demonstrate Dawson structure, ${\text{CoTiW}}_{11}^{6-}$ (Figure 1D) and ${\text{SiW}}_{10}^{8-}$ (Figure 1E) are Keggin-based anions, whereas ${\text{W}}_{12}^{10-}$ (Figure 1H) and ${\text{W}}_{22}^{12-}$ - isopolytungstates (see Table 1).