The oxidative potential of differently charged silver and gold nanoparticles on three human lung epithelial cell types

Table 4 Overview of the NPs used in this study

NPs name	Size (nm)	Surface coating	Ζ-potential (mV)	NPs/ml	mg/ml
Ag-SC	10 ± 2.0	Sodium citrate	−50 ± 1.4	1 × 10¹²	0.027
Ag-CHIT-L	10 ± 4.0	Chitosan 0.001%	+25 ± 0.9	5 × 10¹²	0.027
Ag-CHIT-M	10 ± 4.0	Chitosan 0.01%	+43 ± 0.4	5 × 10¹²	0.027
Ag-CHIT-H	10 ± 4.0	Chitosan 0.1%	+60 ± 0.9	5 × 10¹²	0.027
Au-SC	10 ± 1.5	Sodium citrate	−45 ± 0.2	3 × 10¹²	0.032
Au-CHIT-L	7 ± 3.0	Chitosan 0.001%	+23 ± 1.0	5 × 10¹²	0.025
Au-CHIT-M	7 ± 3.0	Chitosan 0.01%	+40 ± 0.6	5 × 10¹²	0.025
Au-CHIT-H	7 ± 3.0	Chitosan 0.1%	+65 ± 1.0	5 × 10¹²	0.025

The designation of NP name used in this table is used throughout the text. NPs size was determined by determining the size distribution of NPs in TEM images (N = 3, ±SEM). Zeta potential was measured in the colloidal solutions of the NPs after synthesis at a pH of 7 for the citrate coated NPs and a pH of 5 for the chitosan coated NPs.

ISSN: 1477-3155