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	Direct electrochemistry and electrocatalysis of hybrid film assembled by polyelectrolyte-surfactant polymer, carbon nanotubes and hemoglobin
	Chen, Liang; Lu, Gongxuan
刊名	Journal of electroanalytical chemistry
	2006-11-15
卷号	597期号:1页码:51-59
关键词	Hybrid film Polyelectrolyte-surfactant Carbon nanotubes Hemoglobin Direct electrochemistry Electrochemical catalysis
ISSN号	0022-0728
DOI	10.1016/j.jelechem.2006.08.002
通讯作者	Lu, gongxuan(gxlu@lzb.ac.cn)
英文摘要	Functional hybrid film based on the incorporation of multiwalled carbon nanotubes modified with hemoglobin into polyelectrolyte-surfactant polymer was fabricated. such assembled films are found to possess facilitated electron transfer of hemoglobin. cyclic voltammetric results showed a pair of well-defined redox peaks for the hb heme fe(iii)/fe(ii) redox couple at about -0.273 (versus sce) in a ph 7.0 phosphate buffer solution. the formal potential of the hb heme fe(iii)/fe(ii) couple shifted linearly with ph with a slope of 52.8 mv ph(-1), indicating that an electron transfer is coupled with a one-proton transportation. an ft-ir and uv-vis spectroscopy study confirms that the secondary structure of hb entrapped in the hybrid film still maintains the original arrangement. it is suggested that the achieved faradic response of the hemoglobin be due to the ability of carbon nanotubes to promote the electron transfer of enzymes and the biomembrane properties of the polyelectrolyte-surfactant polymer. and the entrapped hb exhibits the features of a peroxidase and acts in an electrocatalytic manner in the reduction of hydrogen peroxide, oxygen, and nitrite. the properties of the functional hybrid films, combined with the bioelectrochemical catalytic activity, could make them useful for the development of bioelectronic devices and investigation of protein electrochemistry at functional interface. (c) 2006 elsevier b.v. all rights reserved.
WOS关键词	DIRECT ELECTRON-TRANSFER ; PYROLYTIC-GRAPHITE ELECTRODES ; BIOMEMBRANE-LIKE FILMS ; NITRIC-OXIDE ; MYOGLOBIN ; MEMBRANE ; ACID ; BIOELECTROCHEMISTRY ; NANOPARTICLES ; PERMEABILITY
WOS研究方向	Chemistry ; Electrochemistry
WOS类目	Chemistry, Analytical ; Electrochemistry
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000241443200007
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2379378
专题	中国科学院大学
通讯作者	Lu, Gongxuan
作者单位	1.Chinese Acad Sci, State Key Lab Oxo Synth & Select Oxidat, Lanzhou Inst Chem Phys, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Chen, Liang,Lu, Gongxuan. Direct electrochemistry and electrocatalysis of hybrid film assembled by polyelectrolyte-surfactant polymer, carbon nanotubes and hemoglobin[J]. Journal of electroanalytical chemistry,2006,597(1):51-59.
APA	Chen, Liang,&Lu, Gongxuan.(2006).Direct electrochemistry and electrocatalysis of hybrid film assembled by polyelectrolyte-surfactant polymer, carbon nanotubes and hemoglobin.Journal of electroanalytical chemistry,597(1),51-59.
MLA	Chen, Liang,et al."Direct electrochemistry and electrocatalysis of hybrid film assembled by polyelectrolyte-surfactant polymer, carbon nanotubes and hemoglobin".Journal of electroanalytical chemistry 597.1(2006):51-59.

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