Table 4.

Rates of diffusion through alginate-containing Noble agar

DrugDiffusion rate (%)a
1% alginate2% alginate
Levofloxacin60.43 ± 2.2937.07 ± 0.31
Ciprofloxacin60.30 ± 7.0224.07 ± 4.45
Gentamicin<14.9<14.9
Ceftazidime80.83 ± 5.6975.47 ± 0.06
• a Relative to the rate without alginate. Values are means ± standard deviations for three replicate observations, except for gentamicin.