Spin trapping of radicals generated by ultrasound sonolysis

11 Spin trapping of radicals generated by ultrasound (sonolysis) 

Experiments in neat /V,/V-dimethylformamide, using 3,5-dibromo-4-nitrosobenzenesulfonate [20] as the spin trap, avoided the difficulties of competing redox reactions since the species trapped, CH) and CH2N(CH3)CHO [reactions (55)-(57)], cannot conceivably be generated except by homolysis of /V,yV-dimethylformamide (Misik et al., 1995). 

Spin trapping is an often-used technique in the study of possible radical production in biological systems (for reviews see Kalyanaraman, 1982 Mason, 1984 Mottley and Mason, 1989), particularly by the detection and monitoring of spin adducts of the hydroxyl and hydroperoxyl ( OOH) radicals in view of their relation to possible damage mechanisms. This is a large area of research which it is not possible to cover in a limited review, and the treatment will therefore be restricted to a discussion of the electron transfer properties of biochemical systems (for a review on the application of the Marcus theory to reactions between xenobiotics and redox proteins, see Eberson, 1985) and 

High-potential protein from Chromatium vinosum (Fe3+/Fe2+) 0.11 

---