Table 1. Zeta potential values of the SPIONs determined before and after incubation with the biofilm.
Samples | ζ potential (mV) before incubation with biofilm | ζ potential (mV) following incubation with biofilm |
---|---|---|
Bare SPIONs | 5.9 ± 0.5 | -17.2 ± 0.7 |
Amino functionalized SPIONs | 22.2 ± 0.3 | -15 ± 0.5 |
Carboxyl functionalized SPIONs | -20.1 ± 0.4 | -16.9 ± 0.6 |