Characteristics of molecular fluorescence of a lipid probe in human blood lipoproteins exposed to synchrotron radiation

Measurements of the principal characteristics of lipid probe molecular fluorescence in four classes of human blood lipoproteins and in artifical membranes and lipoproteins were carried out. Two regimes of excitation were used: steady-state and pulsed (in SR beam). The lipid probe K-37 is used in medical practice for the determination of the amount of low density and very low density lipoproteins in human blood. The possibility to use the probe fluorescence in this way was found empirically. But biophysical properties of this phenomenon were not investigated up to now. This article is one of the stages of such investigations.