Electron spin resonance study of photoinduced radicals in various eumelanins in solid matrix.
The photoinduced radicals formed in eumelanin from hair at various excitation wavelengths, in KBr matrix, are compared with the photoinduced radicals observed with bovine eye iris and squid ink eumelanins. Qualitative similarities and quantitative differences are observed, specially on exposure at short wavelengths.
Bibang
R
R
Laboratoire de Photochimie Moléculaire et Macro-moléculaire (Unité Associée au C.N.R.S. No 433), Université de Clermont II, Aubière, France.
Arnaud
R
R
Lemaire
J
J
Deflandre
A
A
Lang
G
G
D000818:Animals; D002417:Cattle; D049832:Decapodiformes; D004578:Electron Spin Resonance Spectroscopy / Q000379:methods; D005609:Free Radicals; D007498:Iris; D007700:Kinetics; D008027:Light; D008543:Melanins / Q000302:isolation & purification* / Q000528:radiation effects*; D013056:Spectrophotometry, Ultraviolet; D014466:Ultraviolet Rays
D005609:Free Radicals; D008543:Melanins; C041877:eumelanin