Table 1: Redox potential of nanomaterial dispersion in various liquid media; the value quoted (in mV) is relative to the standard hydrogen reference electrode. The values in bracket show the difference in value with respect to the corresponding blank liquid media.

Sample nameRedox potential (mV) of nanomaterial dispersions
DI waterFish mediumSeawaterDaphnia medium

Liquid media with no nanomaterials405418384425
Nanograin CeO2 (Umicore Belgium)416 (11 mV)439 (21 mV)384 (0 mV)415 (−10 mV)
Nanosun ZnO (Micronisers, Australia)398 (−7 mV)424 (6 mV)380 (−4 mV)415 (−10 mV)
Micron ZnO (Sigma Aldrich, UK)398 (−7 mV)430 (12 mV)374 (−10 mV)415 (−10 mV)
Z-COTE ZnO (BASF, Germany)396 (−9 mV)427 (9 mV)379 (−5 mV)422 (−3 mV)
Micron CeO2 (Sigma Aldrich, UK)422 (17 mV)430 (12 mV)382 (−2 mV)429 (4 mV)
Ceria dry CeO2 (Antaria, Australia)414 (9 mV)436 (18 mV)387 (3 mV)426 (1 mV)