Skip to main content

Table 1 Concentration values of components in individual compositions, process parameters and properties of the products

From: Preparation and of PVA-based compositions with embedded silver, copper and zinc oxide nanoparticles and assessment of their antibacterial properties

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 -