Table 1.
Surface polarity and Lewis acid-base characteristics of non-compound-treated skin bacteria
| Bacteria | Physicochemical parametersa | Water | ||
|---|---|---|---|---|
| S. aureus | Hydrophobic (%) | 93.9 | ± | 1.3 |
| Lewis acid γ+ | 5.2 | ± | 0.9 | |
| Lewis base γ− | 8.1 | ± | 1.7 | |
| S. epidermidis | Hydrophobic (%) | 87.0 | ± | 3.0 |
| Lewis acid γ+ | 54.9 | ± | 1.5 | |
| Lewis base γ− | 18.9 | ± | 5.7 | |
| C. acnes | Hydrophobic (%) | 68.3 | ± | 0.5 |
| Lewis acid γ+ | 21.2 | ± | 3.3 | |
| Lewis base γ− | 19.6 | ± | 1.2 | |
aParameters are expressed in percent for hydrophobicity and in arbitrary units for Lewis acid/base. Values are defined from at least three independent MATS experiments ± standard error of the mean (SEM).