Skip to main content

Table 1 Characterization of TiO 2 , ZnO, and SiO 2 nanoparticles in Milli-Q water solutions

From: A comparison of conventional methods for the quantification of bacterial cells after exposure to metal oxide nanoparticles

Physical Parameters

ZnO

TiO2

SiO2

Primary size (nm)

14.0 ± 4.9

19.7 ± 5.7

17.4 ± 5.1

Primary size range(nm)

6.3 – 30.5

10.2 - 31.2

8.0 – 27.9

Hydrodynamic size (nm)

2738.3 ± 303.3

2308.3 ± 159.1

915.0 ± 35.8

Shape

spherical

spherical

spherical

Agglomerate in solution

Yes

Yes

Yes

Zeta potential ζ (mV)

17.6 ± 0.7

27.2 ± 3.1

−5.7 ± 0.4