Table 5: Electrokinetic potentials of silica nanoparticles at pH 7.45.

SampleAqueous phase
Water2% aqueous HEC2% aqueous -CD

1−22.1 ± 1.2 mV−25.6 ± 2.0 mV−19.8 ± 1.3 mV
2−24.8 ± 1.0 mV−22.0 ± 1.8 mV−21.8 ± 1.7 mV
3−23.4 ± 0.9 mV−24.3 ± 1.5 mV−22.6 ± 1.8 mV
4−24.1 ± 1.7 mV−22.1 ± 0.8 mV−23.7 ± 1.5 mV
5−25.0 ± 1.6 mV−22.6 ± 1.0 mV−23.8 ± 2.1 mV

Value ± standard deviation.