Energy-dispersive X-ray reflectivity study of the model membranes at the air/water interface.
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.
Vierl
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Medizinische Biophysik, Technische Universität München, Klinikum rechts der Isar, Germany.
Cevc
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Metzger
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H
D000388:Air; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D008567:Membranes, Artificial; D010713:Phosphatidylcholines / Q000737:chemistry*; D014867:Water; D014961:X-Ray Diffraction / Q000295:instrumentation*
D008567:Membranes, Artificial; D010713:Phosphatidylcholines; D014867:Water