Heme plane orientation dependent direct electron transfer of cytochrome c at SAMs/Au electrodes with different wettability

Heme plane orientation dependent direct electron transfer of cytochrome c at SAMs/Au electrodes with different wettability

It is proposed that direct electron transfer is dependent on the orientation of the heme plane in cytochrome c (cyt c) assembled on electrode surfaces. Orientation with the heme plane in cyt c parallel to the gold electrode surface favors the direct electron transfer, while vertical orientation of t...

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Veröffentlicht in:Chemical communications (Cambridge, England) England), 2012-11, Vol.48 (88), p.10859-10861
Hauptverfasser: Wang, Gui-Xia, Bao, Wen-Jing, Wang, Min, Xia, Xing-Hua
Format: Artikel
Sprache:eng
Schlagworte:
Adsorption
Cytochromes c - chemistry
Electrochemistry
Electrodes
Gold - chemistry
Heme - chemistry
Surface Properties
Wettability
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container_issue 88
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container_title Chemical communications (Cambridge, England)
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creator Wang, Gui-Xia
Bao, Wen-Jing
Wang, Min
Xia, Xing-Hua
description It is proposed that direct electron transfer is dependent on the orientation of the heme plane in cytochrome c (cyt c) assembled on electrode surfaces. Orientation with the heme plane in cyt c parallel to the gold electrode surface favors the direct electron transfer, while vertical orientation of the heme plane makes the direct electron transfer difficult. A preferable electron transport pathway for cyt c is through the axial ligand (His-18) of the heme center rather than the porphyrin ring.
doi_str_mv 10.1039/c2cc35819k
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source MEDLINE; Royal Society Of Chemistry Journals 2008-; Alma/SFX Local Collection
subjects Adsorption
Cytochromes c - chemistry
Electrochemistry
Electrodes
Gold - chemistry
Heme - chemistry
Surface Properties
Wettability
title Heme plane orientation dependent direct electron transfer of cytochrome c at SAMs/Au electrodes with different wettability
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