Sonochemistry of quinones in argon-saturated aqueous solutions: enhanced cytochrome c reduction.
Sonolysis of argon-saturated aqueous quinone solutions resulted in an enhancement in ferricytochrome c (Cyt c) reduction. Upon addition of superoxide dismutase, Cyt c reduction was partially inhibited, thus implying a role of superoxide ion in this reduction process. Neither quinone hydrophobicity nor reduction potential exclusively controls the Cyt c reduction enhancement, although a preference for hydrophobicity versus reduction potential is noted.
Lawson
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Department of Chemistry, CUH Station, University of Puerto Rico at Humacao, Humacao, Puerto Rico 00791, USA.
Ferrer
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Flores
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Alegría
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AE
D000818:Animals; D001128:Argon; D016227:Benzoquinones / Q000737:chemistry / Q000378:metabolism; D003574:Cytochrome c Group / Q000737:chemistry / Q000378:metabolism*; D009285:Naphthoquinones / Q000737:chemistry / Q000378:metabolism; D010084:Oxidation-Reduction; D011048:Polarography; D011809:Quinones / Q000737:chemistry / Q000378:metabolism*; D012996:Solutions / Q000737:chemistry / Q000378:metabolism*; D013010:Sonication; D013482:Superoxide Dismutase / Q000378:metabolism / Q000494:pharmacology; D024483:Vitamin K 3; D014867:Water / Q000737:chemistry / Q000378:metabolism*
D016227:Benzoquinones; D003574:Cytochrome c Group; D009285:Naphthoquinones; D011809:Quinones; D012996:Solutions; D014867:Water; C109863:ubiquinone-O; D001128:Argon; D024483:Vitamin K 3; D013482:Superoxide Dismutase; C035577:2,6-dimethyl-1,4-benzoquinone; C035342:1,4-naphthoquinone