Molecular organization of DHP membrane fragments
Research on Chemical Intermediates(1995)
摘要
The phase transition of dihexadecyl phosphate (DHP) bilayered disks has been studied using EPR spectroscopy. In the acid form
of DHP, a phase transition temperature exists, that we have monitored through the spin-spin interaction between the nitroxide
molecules at high concentration (8%) in DHP bilayers. This spin-spin interaction is due to the gathering of solutes in a fluid
defect of the membrane: the border. The fluorescence quenching of two probes by the nitroxide stearic acids in DHP bilayers
has been studied by stationary and time-resolved fluorescence measurements. The quenching process is mainly static. Both magnetic
and fluorescent probes are localized in the periphery of the bilayered disks.
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关键词
Cation Radical,Acetonitrile Solution,Styryl,Transient Absorption Spectrum,Laser Flash Photolysis
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