EPR Investigations of Model Neuromelanins
D. Skrzypeka, A. Dzierżęga-Lęcznarb and J. Ziółkowskaa
aInstitute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland
bFaculty of Pharmacy, Silesian Medical Academy, Narcyzów 1, 41-200 Sosnowiec, Poland
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The aim of this work was to compare free radical properties of some model neuromelanins obtained from dopamine and its mixture with 5-S-cysteinyldopamine in various molar ratios. The EPR method was used in these investigations; the samples were detected at X and K bands. The parameters of EPR spectra, free radicals concentrations in air and in vacuum, the influence of microwave power and temperature on intensity of resonance signals were measured.
DOI: 10.12693/APhysPolA.98.561
PACS numbers: 76.30.Rn, 87.15.-v