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  • Title: [Determination of the radius, volume and surface area of plasma lipoproteins using fluorescent probes].
    Author: Dobretsov GE, Lapshin EN, Kuznetsov AS.
    Journal: Ukr Biokhim Zh (1978); 1984; 56(2):167-71. PubMed ID: 6719561.
    Abstract:
    The effect of radiationless energy transfer between the fluorescent probes was used to determine the radius, volume and surface area of the blood plasma lipoprotein. Anthracene and p-terphenyl, distributed over the whole volume of lipids of a lipoprotein particle, and HSPH-14 localized on its surface served as energy donor and acceptor probes. Human blood lipoproteins of very low (LVLD), low (LLD2), and high (LHD2 and LHD3) density were studied. All the fluorescence-measured lipoprotein volumes were rather close to the data resulted from the weight analysis. The surface areas were equal to 230, 210, 400 and 330 m2 per 1 g of lipoprotein and the radii--11, 11, 7.5, 7.2 nm, respectively. All the measurements were made in solutions, without any denaturating effects on lipoprotein, its concentration being 1 mg/ml and lower.
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