Pulsed UV laser generated short-lived free radicals from biological samples.
EPR characterization of the short-lived free radicals generated by pulsed UV laser ablation of biological samples has been investigated using a spin trap method. The obtained EPR spectra suggest that the trapped short-lived free radicals generated by excimer laser ablation of collagen and myocardium are identical. The obtained results are discussed in association with the production scheme of free radicals and an empirical mechanism of laser generated short-lived free radicals.
Department of Chemistry, Boston University, Massachusetts 02215.
K
K
Nakagawa
D003094:Collagen / Q000378:metabolism*; D003497:Cyclic N-Oxides; D004578:Electron Spin Resonance Spectroscopy; D005609:Free Radicals; D007834:Lasers; D009206:Myocardium / Q000378:metabolism*; D009589:Nitrogen Oxides; D013113:Spin Labels; D014466:Ultraviolet Rays
D003497:Cyclic N-Oxides; D005609:Free Radicals; D009589:Nitrogen Oxides; D013113:Spin Labels; C029217:phenyl-N-tert-butylnitrone; D003094:Collagen