title: Anomalous temperature dependence of peptide films at air-water interface.
abstract: The tetrapeptide derivative Tyr-Gly-Phe-Ala-OBz (1) forms monolayers as confirmed by compressibility studies carried out at various temperatures. Peptide 1 monolayer exhibits an anomalous structural transition at 40 degrees C as evidenced by pi-A isotherms recorded at different temperatures. The structural transition is also observed in aqueous solution of trifluoroacetate of peptide 1 as evidenced by fluorescence and Raman scattering intensity measurements.
authors.affiliation: Bioorganic Laboratory, Central Leather Research Institute, Adyar, Chennai, India.
authors.forename: R
authors.initials: R
authors.lastname: Jayakumar
authors.forename: M
authors.initials: M
authors.lastname: Murugesan
mesh_terms: D000388:Air; D005453:Fluorescence; D010455:Peptides / Q000737:chemistry*; D013059:Spectrum Analysis, Raman; D013499:Surface Properties; D013696:Temperature; D014269:Trifluoroacetic Acid / Q000737:chemistry; D014443:Tyrosine / Q000737:chemistry; D014867:Water
chemical_list: D010455:Peptides; D014867:Water; D014443:Tyrosine; D014269:Trifluoroacetic Acid