Abstract
It is shown that in the process of measuring the contact angles of drops of water or of air bubbles at biological surfaces transfer of natural surface-active materials to the air /water interface occurs with a consequent large reduction in the surface tension. The estimates of cell surface tensions from contact angles based on theoretical calculations in which the air/water tension of pure water is used are consequently in error. The adhering bubble method is preferable for contact angle determinations in biological systems.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 541-544 |
| Number of pages | 4 |
| Journal | Langmuir |
| Volume | 1 |
| Issue number | 5 |
| DOIs | |
| State | Published - Sep 1985 |
| Externally published | Yes |
All Science Journal Classification (ASJC) codes
- General Materials Science
- Condensed Matter Physics
- Surfaces and Interfaces
- Spectroscopy
- Electrochemistry