Zone of inhibition (ZOI) diameter of ZnO samples against drug resistant strains [(a) 1368, (b) BAA2452, (c) 1A626 of E. coli and ((d)12001] of A. baumannii. Data shown here is one of the representative from n = 3. N.D. indicates that the zone of inhibition was not detected.
| Bacterial cells | Zone of inhibition (mm) | ||||
|---|---|---|---|---|---|
| (i) ZO | (ii) 2NZO | (iii) 5NZO | (iv) Polymyxin B | (v) DMSO | |
| (a) E. coli 1368 | N.D. | 18 | 23 | 13 | N.D. |
| (b) E. coli BAA2452 | N.D. | 14 | 17 | 12 | N.D. |
| (c) E. coli 1A626 | N.D. | 18 | 21 | 12 | N.D. |
| (d) A. baumannii 12001 | N.D. | 18 | 25 | 15 | N.D. |