title: Chemical models and radiation damage.
abstract: E.s.r. spectroscopy has been used in conjunction with an aqueous flow system to investigate both the metal-catalysed decomposition of hydrogen peroxide to OH. and the subsequent reactions of this radical with a variety of biomolecules. Particular emphasis is placed on the effects of pH and ligand on the FeII-H2O2 reaction and on the sites of attack by OH. in its reaction with pyranose and furanose sugars, sugar phosphates, nucleosides and nucleotides. Attention is focused on subsequent reactions (for example, of radicals formed by attack in the ribofuranose moiety of adenosine) which may be involved in radiation damage.
authors.forename: M
authors.initials: M
authors.lastname: Fitchett
authors.forename: B C
authors.initials: BC
authors.lastname: Gilbert
authors.forename: M
authors.initials: M
authors.lastname: Jeff
mesh_terms: D000596:Amino Acids; D002241:Carbohydrates; D004578:Electron Spin Resonance Spectroscopy; D005296:Ferrous Compounds; D005609:Free Radicals; D006861:Hydrogen Peroxide; D006878:Hydroxides; D008956:Models, Chemical; D009705:Nucleosides; D010100:Oxygen; D011687:Purines; D011743:Pyrimidines; D011830:Radiation Effects; D013403:Sugar Phosphates; D014025:Titanium
chemical_list: D000596:Amino Acids; D002241:Carbohydrates; D005296:Ferrous Compounds; D005609:Free Radicals; D006878:Hydroxides; D009705:Nucleosides; D011687:Purines; D011743:Pyrimidines; D013403:Sugar Phosphates; D006861:Hydrogen Peroxide; D014025:Titanium; D010100:Oxygen