TR-EPR spectra of UV irradiated synthetic eumelanin in equilibrium with air oxygen, reveal the formation of melanin–superoxide radical pairs and allow to determine both the electron dipolar interaction D and the exchange interaction J between the two radicals.
Time-resolved EPR observation of synthetic eumelanin-superoxide radical pairs
TOFFOLETTI, ANTONIO
;CONTI, FOSCA;
2009
Abstract
TR-EPR spectra of UV irradiated synthetic eumelanin in equilibrium with air oxygen, reveal the formation of melanin–superoxide radical pairs and allow to determine both the electron dipolar interaction D and the exchange interaction J between the two radicals.
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