Table 3: Amount of bacteria/mold growth (%) on the coatings containing nano ZnO in various concentrations.

Escherichia coli Staphylococcus aureus Pseudomonas aeruginosa Penicillium chrysogenum Aspergillus niger

Control809095100100
1% ZnO008010090
2% ZnO008010080
3% ZnO00409515
4% ZnO0025955