Table 2. Summary and evaluation of promising QSIs not tested for synergy.
Compound | Reduces virulence factors | Inhibits biofilm? | Commercially available? |
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Alginate, pyocyanin | Yes | No (2 synthetic steps) |
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Alginate, rhamnolipid (sub-MIC) | Yes | Yes |
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Elastase, pyocyanin, violacetin | Yes | Yes |
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Pyocyanin | Yes (IC85 = 100 μM) | Yes |
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Elastase, pyocyanin (IC50 = 10 μM) | Yes (IC50 = 50 μM) | No |
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Elastase, pyocyanin | Yes | Yes |