Table 6.
Percentages of biofilm degradation in different bacteria strains caused by Sm‐SeNPs, Bm‐SeNPs and Ch‐SeNPs
| Bacterial straina | Stenotrophomonas maltophilia‐SeNPs (μg ml−1) | Bacillus mycoides‐SeNPs (μg ml−1) | Chemically synthesized SeNPs (μg ml−1) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 50 | 100 | 250 | 500 | 50 | 100 | 250 | 500 | 50 | 100 | 250 | 500 | |
| Pseudomonas aeruginosa PAO1 (1.10) | 73 ± 5 | 72 ± 2 | 76 ± 2 | 73 ± 5 | 52 ± 1 | 62 ± 4.5 | 57 ± 1 | 73 ± 6 | 16 ± 0.7 | 18 ± 4.2 | 37 ± 0.7 | 53 ± 1 |
| P. aeruginosa ATCC27853 (1.00) | 49 ± 1.4 | 53 ± 1.4 | 53 ± 1.4 | 43 ± 0.7 | 31 ± 4.9 | 43 ± 1.4 | 51 ± 7 | 55 ± 7 | 23 ± 1.4 | 35 ± 1 | 40 ± 2.5 | 46 ± 0.7 |
| P. aeruginosa INT (1.00) | 63 ± 5.5 | 53 ± 0.5 | 61 ± 1.5 | 41 ± 4.5 | 65 ± 4.5 | 44 ± 0.5 | 58.2 ± 3 | 32 ± 1.5 | 15 ± 6.3 | 15 ± 6.3 | 8 ± 2.8 | 8 ± 4.5 |
| P. aeruginosa CFC21 (1.20) | 21 ± 1 | 45 ± 3.5 | 53 ± 5.5 | 63 ± 2 | 44 ± 4.5 | 16 ± 3 | 33 ± 1.5 | 61 ± 0.5 | 8 ± 1.4 | 5 ± 0.7 | 16 ± 1.4 | 1 ± 0.7 |
| P. aeruginosa CFC20 (1.10) | 87 ± 3 | 84 ± 0.5 | 85 ± 1 | 85 ± 0.5 | 80 ± 1 | 86 ± 1 | 86 ± 1.7 | 82 ± 2 | 17 ± 3.5 | 13 ± 2.8 | 29 ± 4.2 | 50 ± 2.8 |
| P. aeruginosa CFCB (2.75) | 53 ± 4 | 58 ± 3 | 56 ± 3 | 64 ± 2 | 25 ± 1 | 27 ± 5 | 51 ± 2.5 | 47 ± 3 | 0 | 4 ± 1.4 | 57 ± 1.4 | 72 ± 0.7 |
| P. aeruginosa CFCA (3.00) | 44 ± 2.5 | 44 ± 2.5 | 39 ± 1 | 53 ± 2 | 28 ± 4 | 20 ± 2.5 | 40 ± 2.5 | 53 ± 1 | 0 | 2 ± 0.7 | 66 ± 0.7 | 73 ± 0.7 |
a
Quantity of biofilm in arbitrary unit.
The percentage of degradation was calculated relative to the quantity of biofilm formed by each strain in the absence of nanoparticles. Data represent the means of three different experiments. Percentages of biofilm degradation higher than 80% are shown in bold.