Table 2.
Dynamic contact antimicrobial activity of polymer coatings
| Polymer coatings |
Viable cells (105 cfu/mL) |
|
|---|---|---|
| E. colic | S. aureusc | |
| Control a | 3.6±0.4 | 3.8±0.6 |
| w/ catechol | ||
| P0 | 3.8±3.0 | 3.9±0.7 |
| P1 | 1.7±0.4 | 3.5±0.4 |
| P2 | 0 b | 1.2±0.4 |
| P3 | 0 b | 0.3±0.2 |
| P4 | 2.3±0.5 | 1.1±0.5 |
| w/o catechol | ||
| P5 | 0 b | 0 b |
| P6 | 0 b | 0 b |
| P7 | 0 b | 0 b |
| P8 | 0 b | 0 b |
a
Uncoated glass slide.
b
A portion of assay solution was plated without dilution, and no colony formation was observed.
c
The initial concentration of bacteria was ~2 × 105 cfu/mL.