O V Braginskaia

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The fluorescein distribution in the stomach of the rat with induced gastric cancer has been studied. In all cases, the level fluorescein fluorescence in the tumor was higher than in the adjacent tissues of the stomach. Thus, the data obtained confirm the selective accumulation of fluorescein in tumors of the stomach and agree with clinical results.
On the basis of 1800 examinations of tumor cells the authors show possibility for accumulation of luminescent dye uranine by malignant cells. The conception of the mechanism of its accumulation, confirmed by the studies of reinoculated tumors of rats (60 examinations) is presented. Of 821 patients with ulcers of the stomach 641 had no luminescence; at(More)
The fluorescence lifetime and quantum yield as a function of single picosecond laser pulse intensity were experimentally studied in chloroplasts and subchloroplast particles. The intensity of laser pulse were changed from 3 x 10(12) to 10(17) photon/cm2. To explain experimental results it was considered that energy transport in the light harvesting antenna(More)
The accumulation of sodium fluorescein inside K562 cells in culture was investigated. It was found that the great part of the dye was bound to the enzymes inside the cell. The efficiency of the binding was found to depend upon the pH value inside the cell. This pH value was measured in the experiment. The fraction of the fluorescein bound in the cell, the(More)
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