Bioluminescence monitoring: detoxification of a-radioactive solutions by humic substances

Bacterial bioluminescence assay systems were used to monitor the detoxification of a-radioactive solutions by humic substances (HS). Solutions of americium-241 and uranyl nitrates were used as a source of low-level a-radiation. Bioluminescent intensity of the systems in the solutions of the radionuc...

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Bibliographic Details
Main Authors: Rozhko, T V, Aleksandrova, M A
Format: Conference Proceeding
Language:English
Online Access:Get full text
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Summary:Bacterial bioluminescence assay systems were used to monitor the detoxification of a-radioactive solutions by humic substances (HS). Solutions of americium-241 and uranyl nitrates were used as a source of low-level a-radiation. Bioluminescent intensity of the systems in the solutions of the radionuclides has been shown to depend on radionuclide concentration, level of organization and integrity of the bioluminescent assay systems. It was shown that HS change bioluminescence kinetics in radioactive solutions, bring them close to control: bioluminescence activation and inhibition decreased in the presence of I-IS. Electron microscopic images of the bacterial cells in the radioactive solutions in the presence and absence of HS were shown to be different: HS were found to decrease the Jamaged effect of radiation. Redistribution of the radionuclides inside the bacterial cells was studied in the presence of HS.
ISSN:1522-7235
1099-1271