Properties of monolayers formed by wheat storage proteins (WSP) at an air/water interface were investigated by measuring the monolayers’ effects on the damping of standing waves excited by vertical oscillations of a circular cylinder of water. A small concentration of a WSP monolayer increased wave-damping rates by a factor of 10, which is ~50% higher than predicted by published models. The damping rate also showed an unpredicted dependence on small changes in frequency. Cross-linking among molecules did not affect the wave-damping rates as a function of time. The WSP monolayer wet glass more effectively with increasing concentration. Damping rates were independent of whether the monolayer was spread from the solid or solution fraction.
All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Condensed Matter Physics
- Surfaces and Interfaces