Table 3 Cmag and magnetite particle sizes measured by quantitative TEM and SAXS under the three tested dO2 conditions at the end of cultivation after 34 h (95% dO2),18 h (1% dO2) and 34 h (0% dO2)
Cmag | TEM | SAXS [nm] | ||
|---|---|---|---|---|
Median [nm] | Average diameter [nm] | |||
Oxic (95% dO2) | 0.13 ± 0.005 | – | – | – |
Microoxic (1% dO2) | 0.74 ± 0.07 | 29.7 | 29.3 ± 7.9 | 30.6 ± 7 |
Anoxic (0% dO2) | 0.99 ± 0.01 | 35.0 | 33.8 ± 9.4 | 35.6 ± 7 |