The direct electrochemistry of myoglobin at a DL-homocysteine self-assembled gold electrode.
A pair of well-defined redox waves of myoglobin at a DL-homocysteine self-assembled gold electrode was achieved. Myoglobin can strongly bind to the homocysteine self-assembled gold electrode, so the Mb-Hcy self-assembled gold electrode was prepared and the standard rate constant (ks) of Mb was calculated as 9.3 x 10(-1) s(-1). X-ray photoelectron spectroscopy (XPS) measurements demonstrated that Hcy monolayer was formed and Mb was bound to Hcy monolayer.
Zhang
H M
HM
Department of Chemistry, Peking University, Beijing, People's Republic of China. Zhanghm@chem.pku.edu.cn
Li
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NQ
D000818:Animals; D004563:Electrochemistry; D004566:Electrodes; D006046:Gold; D006710:Homocysteine / Q000737:chemistry* / Q000378:metabolism; D006736:Horses; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D009211:Myoglobin / Q000737:chemistry* / Q000378:metabolism; D009994:Osmolar Concentration; D010084:Oxidation-Reduction; D013052:Spectrometry, X-Ray Emission
D009211:Myoglobin; D006710:Homocysteine; D006046:Gold