Abstract
Hemoglobin(Hb) has been immobilized on a glassy carbon electrode(GCE) surface with konjac glucomannan(KGM) and room temperature ionic liquid(RTIL).And which electrochemical behaviors have been investigated by cyclic voltammetry.The results shown that the entrapped Hemoglobin undergoes fast direct electron transfer reactions with formal potential of-0.38V(vs.SCE) and the E0' is linearly dependent on solution pH with a slope value of 51 mV/pH,due to the electron transfer of HbFe3+/HbFe2+ redox couple companied with a proton transfer.The electrocatalytic reduction of oxygen was also explored at the Hb-KGM/RTIL/Nafion/ GC electrode.
Keywords
ionic liquid, konjac glucomannan(KGM), hemoglobin, electrocatalysis
Publication Date
2008-08-28
Online Available Date
2008-08-28
Revised Date
2008-08-28
Received Date
2008-08-28
Recommended Citation
Liu YANG, Xia-qin WU, Wen-jing HOU, Lin-fei GU, Rong WANG, Xiao-ming GUO, Zong-rang ZHANG.
Direct Electrochemistry of Hemoglobin Immobilized on the Electrode Modified with Ionic Liquid and KGM[J]. Journal of Electrochemistry,
2008
,
14(3): 304-307.
DOI: 10.61558/2993-074X.1911
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol14/iss3/15
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