title: Energy-dispersive X-ray reflectivity study of the model membranes at the air/water interface.
abstract: The results of the first energy-dispersive reflectivity measurements with a (membrane coated) liquid surface are reported. They rely on the calibration curve measured with pure water and can be done without any sample or detector movement with a low-intensity, laboratory-based X-ray generator within less than 1 h. As an illustration, the structural parameters of a diarachidoylphosphatidylcholine monolayer at the air/water interface are determined. It is argued that the energy-dispersive detection in combination with the intense synchrotron radiation can be used for the time-resolved reflectivity measurements on the time-scale of minutes.
authors.affiliation: Medizinische Biophysik, Technische Universität München, Klinikum rechts der Isar, Germany.
authors.forename: U
authors.initials: U
authors.lastname: Vierl
authors.forename: G
authors.initials: G
authors.lastname: Cevc
authors.forename: H
authors.initials: H
authors.lastname: Metzger
mesh_terms: D000388:Air; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D008567:Membranes, Artificial; D010713:Phosphatidylcholines / Q000737:chemistry*; D014867:Water; D014961:X-Ray Diffraction / Q000295:instrumentation*
chemical_list: D008567:Membranes, Artificial; D010713:Phosphatidylcholines; D014867:Water