VOLTAMMETRY OF CYTOCHROME-C ENTRAPPED IN HYDROGEL MEMBRANE ON GRAPHITE ELECTRODE
Data(s) |
1995
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Resumo |
The voltammetric behavior of cytochrome c entrapped in hydrogel membranes at paraffin wax-impregnated spectroscopic graphite electrodes (WISGE) was studied in this paper. A pair of well-defined peaks appeared at +70 mV (vs. Ag/AgCl). Beside these two peaks, another pair of peaks emerged at around +225 mV. Further investigations suggested that at least three states of cytochrome c existed in the membranes due to the special structure of the hydrogel. The native conformation of cytochrome c molecules was stabilized by the hydrophilic environment that was formed by the hydroxyl structure of the membranes and facilitated the cytochrome c electron transfer reaction at +70 mV. The molecules directly adsorbed on the surface of the graphite electrode were responsible for the redox peaks at around +225 mV. Whether the adsorption peaks were detectable or not was related to the thickness of membranes and the pre-retaining time before the formation of membranes. |
Identificador | |
Idioma(s) |
英语 |
Fonte |
CHEN T;GUO YZ;DONG SJ.VOLTAMMETRY OF CYTOCHROME-C ENTRAPPED IN HYDROGEL MEMBRANE ON GRAPHITE ELECTRODE,BIOELECTROCHEMISTRY AND BIOENERGETICS,1995,37(2):125-130 |
Palavras-Chave | #MODIFIED GOLD ELECTRODES #TIN OXIDE ELECTRODES #BILAYER MODIFIED ELECTRODE #REDOX REACTION-MECHANISM #DIRECT ELECTROCHEMISTRY #MICROSCOPIC MODEL #INTERFACIAL ELECTROCHEMISTRY #MONOLAYER ELECTRODES #ELECTROACTIVE SITES #CARBON ELECTRODES |
Tipo |
期刊论文 |