Initiation of lipid autoxidation by ABAP at pH 4-10 in SDS micelles.
The rates of radical generation, R(i), by two water soluble initiators: 2,2'-azobis(2-methylpropionamidine) and 2,2'-azobis[2-methyl-N-(2-hydroxyethyl)propionamide], and the lipid soluble 2,2'-azobisisobutyronitrile were measured in an SDS micellar system over a pH range of 4-10. Enhanced values of R(i) at low pH are attributed to Coulombic repulsion of protonated radicals.
Musialik
Malgorzata
M
Department of Chemistry, Warsaw University, Pasteura, 1, 02-093, Warsaw, Poland.
Kita
Marcin
M
Litwinienko
Grzegorz
G
D000578:Amidines / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D008055:Lipids / Q000737:chemistry*; D008823:Micelles; D010084:Oxidation-Reduction; D010100:Oxygen / Q000737:chemistry; D012967:Sodium Dodecyl Sulfate / Q000737:chemistry*
D000578:Amidines; D008055:Lipids; D008823:Micelles; D012967:Sodium Dodecyl Sulfate; C046728:2,2'-azobis(2-amidinopropane); D010100:Oxygen