Fig. 3.

Farnesol inhibits biofilm formation by Staphylococcus aureus for at least three days. Staphylococcus aureus was incubated on titanium alloy discs in the absence of farnesol or in the presence of soluble farnesol or dried farnesol on the titanium disc. The number of viable bacteria was quantified after the indicated time periods. The single asterisk denotes p < 0.05 and the double asterisks denote p < 0.0001 compared with the control group at the same time point. CFU = colony-forming units.