Interaction of O-acylated chitosans with biomembrane models: Probing the effects from hydrophobic interactions and hydrogen bonding

- O-acyl chitosans have stronger effects than parent chitosan on membrane models.
- Hydrogen bonding with phospholipids appears not to be crucial for activity.
- Results confirm the importance of hydrophobic interactions.
- Hydrophobic derivatives should be more effective if activity depends on the membrane.