Antibacterial efficiency of silver and zinc-oxide nanoparticles in acrylate coating for surface treatment of wooden composites
The paper deals with antibacterial effect of silver and zinc-oxide nanoparticles in acrylic coatings applied at treatment of commercial wooden composites – particleboard and medium density fibreboard. The silver nanoparticles usually better suppressed the activity of the Gramnegative bacterium Escherichia coli and the Gram-positive bacterium Staphylococcus aureus already at lower concentrations (0.04 – 0.2 mg Ag/100 g of coating) as the zinc-oxide nanoparticles used in 100-times higher concentrations (4 – 20 mg ZnO/100 g of coating). Both types of applied nanoparticles at higher concentrations had a more apparent efficiency against E. coli comparing to S. aureus.