Measurement of Redox Potential in Nanoecotoxicological Investigations

Table 4

The size of primary particles (of the “as-received” powders), as defined by their corresponding Feret’s diameter. Mean diameter (±1 SD) of a minimum of 50–100 particles measured in the SEM images; the SD here represents the broadness of the size distribution.

Sample name	Supplier	Mean Feret diameter (±1 SD) from SEM images
Nanograin CeO2	Umicore Belgium	28.4 ± 10.4
Nanosun ZnO	Micronisers, Australia	42.5 ± 3.6
Micron ZnO	Sigma Aldrich, UK	891.8 ± 800.0
Z-COTE ZnO	BASF, Germany	151.0 ± 55.6
Micron CeO2	Sigma Aldrich, UK	615.3 ± 430.5
Ceria dry CeO2	Antaria, Australia	44.9 ± 14.6