TABLE 3.
Quantification of equilibrium polymer length and polymer grafting density for P. aeruginosa as obtained by the steric modela
| Parameter | Sample and probe
|
||||
|---|---|---|---|---|---|
| P. aeru- ginosa and DNPS | C. parap- silosis and DNPS | Silicone and HDT | Silicone and C. parap- silosis | Biofilm and C. parap- silosis | |
| Γ1 (10−16 m−2)b | 2.48 | 3.12 | 12.4 | 11.1 | 11.5 |
| Γ2 (10−16 m−2)b | 7.49 | ||||
| L1 (nm)c | 92.6 | 157 | 0.88 | 130 | 109 |
| L2 (nm)c | 24.0 | ||||
| R2 | 1.00 | 0.91 | 0.88 | 0.96 | 0.98 |
a
Five measurements were taken for each sample-probe combination and fitted with either the basic or modified steric model. R2 values are also presented. Γ2 and L2 were calculated only for P. aeruginosa.
b
Polymer grafting density per unit area.
c
Equilibrium polymer length of microbial surface features.