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Critical Review of rate constants for reactions of hydrated electrons, hydrogen atoms and hydroxyl radicals (⋅OH/⋅O− in Aqueous Solution
Kinetic data for the radicals H⋅ and ⋅OH in aqueous solution,and the corresponding radical anions, ⋅O− and eaq−, have been critically pulse radiolysis, flash photolysis and other methods. Rate… Expand
Critical Review of rate constants for reactions of hydrated electronsChemical Kinetic Data Base for Combustion Chemistry. Part 3: Propane
This publication contains evaluated and estimated data on the kinetics of reactions involving propane, isopropyl radical, n‐propyl radical, and various small inorganic and organic species which are… Expand
The standardization of hydroxyl radical rate data from radiation chemistry
Abstract In the literature, numerous discrepancies occur in rate constant data for reactions of the hydroxyl radical with inorganic and organic compounds. Some of these have been redetermined, using… Expand
Letter: Studies on the mechanism of chemical radioprotection by dimethyl sulphoxide.
The oxidation of tiron by superoxide anion. Kinetics of the reaction in aqueous solution in chloroplasts.
The tiron semiquinone may be used as an indicator free radical for the formation of superoxide anion in biological systems because of the rapid rate of oxidation of the catechol by O2 compared to the rate of O2 formation is most enzyme systems. Expand
Fluorescence lifetime analysis of DNA intercalated ethidium bromide and quenching by free dye.
Time-resolved fluorescence spectroscopy directly distinguishes between a decrease in fluorescence intensity due to quenching by an excess of unbound Eb from that due to a decreases in Eb binding to double-stranded DNA, suggesting that techniques which measure total steady state fluorescenceintensity of bound Eb in order to infer relative amounts of double- Stranded DNA must be interpreted with caution. Expand
Chemical radioprotection and radiosensitization of mammalian cells growing in vitro.
- J. D. Chapman, A. P. Reuvers, J. Borsa, C. Greenstock
- Chemistry, Medicine
- Radiation research
- 1 November 1973
The radiosensitizing and radioprotective effects of various compounds have been characterized in Chinese hamster fibroblasts growing in vitro and in a model chemical system utilizing DNA as target, and Cysteamine is shown to protect primarily by adding to the pool of radical-reducing species, resulting in enhanced repair of free-radical damage in the targets. Expand
PULSE RADIOLYSIS STUDIES OF REACTIONS OF PRIMARY SPECIES IN WATER WITH NUCLEIC ACID DERIVATIVES.
Application of polarography to the study of chemical radiosensitization of DNA components.
The half-wave reduction potentials of a range of nitroheterocyclic compounds were measured polarographically and compared with their radiosensitizing abilities in a simple radiation biochemical assay for damage to 5'-GMP to identify potential clinical radiotherapeutic agents. Expand