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The minimum inhibitory concentration (MIC) of ZNO NPs for E. coli and S. aureus. (+) indicates killing activity, meanwhile (-) indicates no killing activity has been seen and bacteria were able to grow.
| Microorganism | ZNO NPs Conc. (µg/mL) |
|||||
|---|---|---|---|---|---|---|
| 2000 | 1000 | 500 | 250 | 125 | 62.5 | |
| E. Coli | + | + | – | – | – | – |
| S. aureus | + | + | + | – | – | – |
