Table 5.

The zeta potential values measured over time for particle dispersions prepared in cell culture media.

Sample	Zeta Potential (mV)–0 h	Zeta Potential (mV)–24 h	Zeta Potential (mV)–72 h
TiO2-1% Fe–N pH ~ 5.5	−28.0 ± 0.64	−8.7 ± 0.92	−8.94 ± 1.17
TiO2-1% Fe–N pH ~ 8.5	−29.2 ± 3.96	−8.1 ± 1.53	−7.86 ± 0.29