Ontology highlight
ABSTRACT:
SUBMITTER: Middelberg AP
PROVIDER: S-EPMC2605502 | biostudies-literature | 2008 Jan
REPOSITORIES: biostudies-literature
Middelberg A P J AP He L L Dexter A F AF Shen H-H HH Holt S A SA Thomas R K RK
Journal of the Royal Society, Interface 20080101 18
We report the structure and Young's modulus of switchable films formed by peptide self-assembly at the air-water interface. Peptide surfactant AM1 forms an interfacial film that can be switched, reversibly, from a high- to low-elasticity state, with rapid loss of emulsion and foam stability. Using neutron reflectometry, we find that the AM1 film comprises a thin (approx. 15A) layer of ordered peptide in both states, confirming that it is possible to drastically alter the mechanical properties of ...[more]