| Samples | EC50 (µg/mL) | EC50 × 103 (µg/mL) |
| L1 | / | ̶ |
| [(VO)2(L2)2] | / | ̶ |
| [Co2(L2)(L3)2] | / | ̶ |
| [Cu2(L2)2(L3)2] | / | ̶ |
| VitC | 9.777 ± 0.520a | 0.652 ± 0.029a |