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. Author manuscript; available in PMC: 2006 Mar 22.
Published in final edited form as: J Infect Chemother. 2004 Aug;10(4):193–199. doi: 10.1007/s10156-004-0319-1

Table 2.

Average amount of gentamicin (μg) accumulated in disks (n=6) atop biofilms of P. aeruginosa.

Power density 0 W/cm2 1.5 W/cm2 2.5 W/cm2
Exposure time 15 min 30 min 45 min 15 min 30 min 45 min 15 min 30 min 45 min
No Biofilm* 0.94 1.70 1.38 1.35 2.38 2.37 1.74 2.81 3.25
13-hr biofilm 0.00 0.00 0.00 0.04 0.23 0.79 0.09 0.76 1.45
24-hr biofilm 0.00 0.00 0.00 0.03 0.20 0.34 0.00 0.22 0.80
*

The disk was place atop 2 filter membranes on the gentamicin plate with no biofilm present.

The concentrations were determined by zones of inhibition.