TABLE 3.
The comparison of microtubule rigidity, EI, calculated using the new nonaxial buckling model (the model with arm) and the simple buckling model (the model without arm)
| Samples | Microtubule length (μm) | Buckling force (pN) | Deflection length (μm) | Rigidity, EI (with arm) (× 10−24 Nm2) | Rigidity, EI (without arm) (× 10−24 Nm2) |
|---|---|---|---|---|---|
| Paclitaxel-stabilized microtubules
|
8.4 | 0.36 | 3.7 | 1.9 | 1.8 |
| 10.0 | 0.32 | 4.8 | 2.5 | 2.4 | |
| 15.7 | 0.11 | 7.6 | 2.0 | 2.0 | |
| 17.3
|
0.11
|
5.8
|
2.5
|
2.2
|
|
| Paclitaxel-free microtubules
|
8.8 | 1.35 | 4.7 | 8.4 | 8.1 |
| 12.2 | 0.58 | 7.0 | 7.1 | 6.7 | |
| 13.6 | 0.50 | 8.0 | 7.8 | 7.4 | |
| 16.0 | 0.43 | 8.3 | 8.5 | 8.3 |
These data were taken from microtubules that were measured once for buckling force.