title: Paramagnetism in melanins: pH dependence.
mesh_terms: D000818:Animals; D002417:Cattle; D004295:Dihydroxyphenylalanine; D004578:Electron Spin Resonance Spectroscopy; D006863:Hydrogen-Ion Concentration; D008543:Melanins; D010084:Oxidation-Reduction; D012995:Solubility; D013696:Temperature
chemical_list: D008543:Melanins; D004295:Dihydroxyphenylalanine