Sample

Average Size (nm)

Polydispersity Index

Zeta (mV)

AgNP_pH 7

71.9 ± 14.5

0.269 ± 0.043

−31.9 ± 8.5

AgNP_pH 8

55.4 ± 4.1

0.383 ± 0.019

−34.8 ± 3.6

AgNP_pH 9

74.8 ± 2.5

0.232 ± 0.011

−30.1 ± 0.7

AgNP_pH 10

31.4 ± 5.8

0.543 ± 0.004

−50.8 ± 0.8