TABLE 3.
Summary of TIRAF measurements on smooth-swimming E. coli HCB437 interacting with a positively charged or hydrophobically coated surface and corrected by calibration with hollow polystyrene particlesa
| Cell type | Positive surface
|
Hydrophobic surface
|
||
|---|---|---|---|---|
| n | Avg distance in nm ± SD (range) | n | Avg distance in nm ± SD (range) | |
| Immobilized | 46 | 21 ± 3 (7-38) | 65 | 18 ± 2 (4-39) |
| Tethered | 30 | 31 ± 1 (25-39) | 0 | NO |
| Swimming (rever- sibly adhering) | 61 | 34 ± 2 (23-48) | 5 | 40 ± 3 (36-44) |
a
Uncertainties are expressed as 95% confidence limits; the range of observed values is given in parentheses. NO, none observed; n, number of observations.