Table 2 Antimicrobial activity of aged, coated paper samples containing 0.01% and 1% Ag/ZnO and 0.01% and 1% Cu/ZnO nanoparticles.
Staphylococcus aureus | ZnO coated paper | 0.01% Ag@ZnO | 1% Ag@ZnO | 0.01% Cu@ZnO | 1% Cu@ZnO | Control (DMSO) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
10 Y | 15 Y | 25 Y | 10 Y | 15 Y | 25 Y | 10 Y | 15 Y | 25 Y | 10 Y | 15 Y | 25 Y | Â | ||
Dilution Factor | 10−3 | 10−3 | 10−3 | 10−3 | 10−3 | 10−3 | 10−3 | 10−3 | 10−3 | 10−3 | 10−3 | 10−3 | 103 | 10−3 |
Volume of broth plated (µl) | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 |
(CFU) at the dilution factor | 404 ± 17.35 | 24 ± 2.00 | 30 ± 3.61 | 81 ± 4.58 | 10 ± 1.00 | 17 ± 3.00 | 45 ± 5.20 | 182 ± 5.29 | 265 ± 7.94 | 381 ± 7.00 | 83 ± 3.00 | 117 ± 4.35 | 225 ± 3.60 | 580 ± 5.56 |
Total CFU /ml | 15,150,000 ± 650,600.68 | 900,000 ± 75,000.00 | 1,125,000 ± 135,208.17 | 3,037,500 ± 171,846.59 | 375,000 ± 37,500.00 | 637,500 ± 112,500.00 | 1,687,500 ± 135,208.17 | 6,552,000 ± 198,431.34 | 9,937,500 ± 297,647.02 | 14,287,500 ± 262,500.00 | 3,112,500 ± 112,500.00 | 4,387,500 ± 163,458.71 | 8,437,500 ± 135,208.17 | 21,750,000 ± 208,791.16 |
Log total CFU | 7.18 | 5.95 | 6.05 | 6.48 | 5.57 | 5.81 | 6.23 | 6.82 | 7.00 | 7.16 | 6.49 | 6.64 | 6.93 | 7.34 |
Percent of Inhibition% | 30.4 | 95.9 | 94.8 | 86.04 | 98.3 | 97.1 | 92.2 | 69.9 | 54.3 | 34.3 | 85.7 | 79.8 | 61.2 | Â |
