Table 2.

Characterization of three kinds of AgNPs (n = 3, mean ± SD).

Kinds of AgNPs	particle size (nm)	Hydrated particle size (nm)	Zeta potential (mV)
20 nm PVP-AgNPs	22.08 ± 4.74	64.27 ± 21.42	−14.21 ± 1.31
20 nm AgNPs	20.14 ± 3.67	542.73 ± 64.83	−9.51 ± 0.2
50 nm AgNPs	49.84 ± 8.02	912.34 ± 76.25	−8.93 ± 1.84

Note: 500 AgNPs were analyzed for obtaining size by Nano-Measurer1.2.5 software.