Electrocatalysis of Hemoglobin at Azure I Chemically Modified Electrodes

Abstract

Abstract: The CME modified by azure I,a new electron-transfer mediator,which was electrodeposited onto the surface of spectrographic graphite electrode ,shows significantly electrocatalytic activity to the reduction of hemoglobin,In the potential range from 0.3 V to-0.7V(vs. SCE),the mediator azure Ibehaves as one-electron reversible redox process involving two protons in acid solution and one proton in basic solution.In the medium of 0.2 mo1/L HAc-NaAc(pH=5.5).The formal potential E^0'of the electrodeposited azure I is -0.21 Vand the apparent electron-transfer rate constant is 0.69 s^-1.This CME shows a good stability.

Key words: Azure I, CME, Hemoglobin, Electrocatalytic reduction

TrendMD:

HE Chun-Xiang, YUAi-Min, HAN Ji-Lin, CHEN Hong-Yuan. Electrocatalysis of Hemoglobin at Azure I Chemically Modified Electrodes[J]. Chem. J. Chinese Universities, 1996, 17(12): 1847.

[1]	ZHUO Mengning,LI Fei,JIANG Hao,CHEN Qianwen,LI Peng,WANG Lizhang. Preparation of SnO₂/GDE Cathodes and Their Electrocatalytic Reduction of CO₂ to Produce Formic Acid ^† [J]. Chem. J. Chinese Universities, 2020, 41(3): 530.
[2]	MENG Zihui,WANG Yifei,XIE Tengsheng,CHEN Wei,QIU Lili,XUE Min. Molecularly Imprinted Hollow Spheres for the Solid Phase Extraction of Protein^† [J]. Chem. J. Chinese Universities, 2019, 40(1): 62.
[3]	CHEN Xuwei, ZHENG Xu, WANG Xiaofeng, WANG Jianhua. Graphene/Carbon Nanaotube Aerogel with Ultra-high Adsorption Capacity for the Isolation of Hemoglobin^† [J]. Chem. J. Chinese Universities, 2015, 36(8): 1498.
[4]	LUO Jinyuan, CHEN Linlin, WANG Yi, LI Hong. Fabrication and Performance of a Novel Visible Light-driven Fuel Cell Based on Photocatalytic Oxidation of Uric Acid by CdS Nanoparticles and Electrocatalytic Reduction of Oxygen by a Copper(Ⅱ) Complex^† [J]. Chem. J. Chinese Universities, 2015, 36(12): 2468.
[5]	WU Chaochao, LIU Gen, XU Junli, ZHANG Xia. Synthesis of PVDF/ZrO₂ Hybrid Membranes and Its Adsorption Property Toward Bovine Hemoglobin^† [J]. Chem. J. Chinese Universities, 2014, 35(4): 784.
[6]	HUANG Xiu-You, HU Bing-Cheng, XU Shi-Chao. Preparation of Metalloporphyrin with Disulfide Bond and Electrocatalytic Reduction of Oxygen [J]. Chem. J. Chinese Universities, 2013, 34(6): 1510.
[7]	GU Guang-Zhe, DONG She-Ying, HUANG Ting-Lin, TANG Hong-Sheng, ZHENG Jian-Bin. NaNO₂ Biosensor Based on Hollow Nano-nickel Oxide Microsphere and Ionic Liquid Composite Film Immobilizing Hemoglobin [J]. Chem. J. Chinese Universities, 2012, 33(09): 1926.
[8]	TIAN Lun-Fu, LIU Zhong-Fang, HU Xiao-Li, KONG Ling, LIU Shao-Pu. Proteins Fluorescence Quenching by [Hg(SCN)₄]^2- and Its Analytical Application [J]. Chem. J. Chinese Universities, 2012, 33(01): 59.
[9]	YAN Kun-Ping, HUI Wen-Li, LUO Chao, XIE Yu-Dou, PENG Ming-Li, CHEN Chao. Preparation of Hemoglobin-based Oxygen Carrier with Low Oxygen Affinity and Arterial Blood Pressure Responses in Rat [J]. Chem. J. Chinese Universities, 2011, 32(4): 897.
[10]	XU Ying, ZHANG Xiao-Yan, YANG Jing, HE Pin-Gang, FANG Yu-Zhi. Electrochemistry and Electrocatalysis of Hemoglobin with SiO2 Gel Film Layer-by-layer Assembled on Carbon Nanotubes-Au Nanoparticles Modified Electrode [J]. Chem. J. Chinese Universities, 2011, 32(10): 2293.
[11]	SU Bi-Quan, ZHANG Yu-Zhen, DU Yong-Ling, WANG Chun-Ming*. Fabrication of a Silver Nanoparticle/polydopamine Modified Glassy Carbon Electrode and Its Electrocatalytic Reduction for p-Nitrophenol [J]. Chem. J. Chinese Universities, 2010, 31(8): 1661.
[12]	WAN Li, ZHAO Chang-Zhi*, XU Hua-Jun, WANG Qin, JIAO Kui. Total Cholesterol Biosensor Based on Direct Electrochemistry of Proteins [J]. Chem. J. Chinese Universities, 2009, 30(4): 670.
[13]	LIU Qiu-Ye, HE Xi-Wen, LI Wen-You, CHEN Lang-Xing, ZHANG Yu-Kui. Studies on Chitosan Coated on Silica for Imprinting Bovine Hemoglobin [J]. Chem. J. Chinese Universities, 2009, 30(4): 691.
[14]	LI Xiao-Hui¹*, YUAN Heng-Li¹, HU Jian-En², XIU Zhi-Long¹. Synthesis and Biological Activities of Hemoglobin Fragments [J]. Chem. J. Chinese Universities, 2008, 29(3): 542.
[15]	GAI Qing-Qing^1,3, LIU Qiu-Ye¹, LI Wen-You¹, HE Xi-Wen¹, CHEN Lang-Xing¹, ZHANG Yu-Kui^1,2. Preparation of Bovine Hemoglobin-imprinted Polymer Beads via Photografting Surface-Modified Method [J]. Chem. J. Chinese Universities, 2008, 29(1): 64.

Electrocatalysis of Hemoglobin at Azure I Chemically Modified Electrodes

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments