Table 2.
The thickness and density dependency of PIPAAm brush on cell adhesion and deadhesion
| Density of grafted PIPAAm chains (chains/nm2) | Molecular weight of grafted PIPAAm chains (Mn) | Cell adhesive charactera |
|
|---|---|---|---|
| 37°C | 20°C | ||
| 0.02 | 23 000 | Adhesive | Adhesive |
| 49 000 | Adhesive | Adhesive | |
| 58 000 | Adhesive | Adhesive | |
| 0.03 | 23 000 | Adhesive | Adhesive |
| 49 000 | Adhesive | Adhesive | |
| 58 000 | Adhesive | Deadhesive | |
| 0.04 | 23 000 | Adhesive | Deadhesive |
| 49 000 | Adhesive | Deadhesive | |
| 58 000 | Poor adhesive | Deadhesive | |
aFor cell adhesion experiment, BAECs are used.