Title: Analysis of the Electron Spin Resonance of Spin Labels Using Chemometric Methods
Abstract: Spin labels are being used to study the structure of model membrane systems and biological membranes (1,2). The spin labeling technique involves incorporating a nitroxide free radical (the spin label) into a membrane system and studying the free radical using electron spin resonance (ESR) spectrometry. Lipid spin labels that are diffused into a membrane orient themselves in a specific configuration and undergo anisotropic molecular motion. When this motion is rapid on the ESR time scale, the ESR spectra that are observed can be correlated with the structure of the membrane. Molecules have been constructed so that the long axis of the molecule is parallel to one of the principal axes of the nitroxide. Anisotropic motion about the long axis of the molecule corresponds to rotation about one of the principal axes of the nitroxide. The ESR spectra of this type of molecule in a well defined inclusion crystal have been
Publication Year: 1977
Publication Date: 1977-06-01
Language: en
Type: book-chapter
Indexed In: ['crossref']
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