Figure 5.

Bacterial re-growth. One-day old S. aureus biofilms were treated by low power (60 watts) discharge argon for 25 min. Re-growth was conducted under different experimental conditions: A) plasma treated biofilms were fed with fresh TSBG media; B) plasma treated biofilms were sonicated for 10 min and then fed with fresh TSBG media containing 10% glucose. All re-growth experiments were done at 37 °C for the indicated time. Bacteria re-growth from untreated (control) and plasma treated biofilms were monitored by measuring culture medium absorbance changes at 570 nm. Data represents the mean of at least three biofilm samples.