Table 1.
Concentration values of components in individual compositions, process parameters and properties of the products
| Component | Concentration of the component in the final product | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Compositions with nanoZnO | Compositions with nanoAg | Compositions with nanoCu | Ref. | ||||||||
| K1 | K2 | K3 | K4 | K5 | K6 | K7 | K8 | K9 | K10 | ||
| PVA, % | 7.0 | ||||||||||
| Sucrose, % | 0.12 | ||||||||||
| Hydroxyethyl cellulose, % | 0.10 | 0.10 | 0.01 | 0.10 | 0.10 | 0.01 | 0.01 | 0.10 | 0.10 | 0.055 | 0.10 |
| Guar gum, % | 0.01 | 0.05 | 0.01 | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 |
| Gelatine, % | 0.05 | 0.5 | 0.5 | 0.1 | 0.5 | 0.3 | 0.5 | 0.5 | 0.5 | 0.1 | 0.3 |
| Chitosan, % | 0.01 | ||||||||||
| Glycerol, % | 14.0 | ||||||||||
| Casein, % | 0.4 | ||||||||||
| ZnO, % | 3.0 | 5.0 | 5.0 | – | – | – | – | – | – | – | 0 |
| Silver nitrate + tannic acid → nanoAg, ppm | – | – | – | 1000 | 500 | 200 | 200 | – | – | – | 0 |
| Copper chloride + tannic acid → nanoCu, ppm | – | – | – | – | – | – | – | 1000 | 200 | 200 | 0 |
| Process parameters | |||||||||||
| CNaOH, mol/l | 0.5 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.9 | 0.5 | 0.3 | 0.3 | 0.5 |
| T, °C | 80 | 80 | 60 | 80 | 80 | 60 | 20 | 60 | 80 | 60 | 60 |
| Properties of the products | |||||||||||
| pH | 7.12 | 6.81 | 6.92 | 5.50 | 5.44 | 6.29 | 7.38 | 5.38 | 5.17 | 5.12 | 6.12 |
| Density, g/ml | 1.111 | 2.997 | 1.410 | 2.903 | 2.906 | 1.125 | 1.105 | 2.925 | 2.939 | 2.915 | 2.925 |
| Size, nm (DLS) | 720 | 1215 | 580 | 1464 | 407 | 1544 | 679 | 762 | 186 | 1489 | - |
| Size, nm (AFM) | 300–600 | 300–400 | 350–600 | 250 | 200 | 250 | 200 | 400 | 300 | 350 | - |