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Direct electron transfer of cytochrome c and its biosensor based on gold nanoparticles/room temperature ionic liquid/carbon nanotubes composite film
Xiang, Cuili1,2; Zou, Yongjin1,2; Sun, Li-Xian1; Xu, Fen1; Sun LX(孙立贤); Xu F(徐芬); Sun LX(孙立贤); Xu F(徐芬)
KeywordCytochrome c Room Temperature Ionic Liquid Gold Nanoparticles Multi-walled Carbon Nanotubes Direct Electron Transfer
Source PublicationELECTROCHEMISTRY COMMUNICATIONS
2008
DOI10.1016/j.elecom.2007.10.030
Volume10Issue:1Pages:38-41
Indexed BySCI
SubtypeArticle
Department15
Funding Project1504
Contribution Rank1;1
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectElectrochemistry
WOS Research AreaElectrochemistry
WOS KeywordDIRECT ELECTROCHEMISTRY ; LIQUIDS ; REDUCTION ; ELECTROCATALYSIS ; HEMOGLOBIN ; MATRIX ; SALTS
AbstractA robust and effective composite film based on gold natioparticles (GNPs)/room temperature ionic liquid (RTIL)/multi-wall carbon nanotubes (MWNTs) modified glassy carbon (GC) electrode was prepared by a layer-by-layer self-assembly technique. Cytochrome c (Cyt c) was successfully immobilized on the RTIL-nanohybrid film modified GC electrode by electrostatic adsorption. Direct electro-chemistry and electrocatalysis of Cyt c were investigated. The results suggested that Cyt c could be tightly adsorbed on the modified electrode. A pair of well-defined quasi-reversible redox peaks of Cyt c was obtained in 0.10 M, pH 7.0 phosphate buffer solution (PBS). RTIL-nanohybrid film showed an obvious promotion for the direct electron transfer between Cyt c and the underlying electrode. The immobilized Cyt c exhibited an excellent electrocatalytic activity towards the reduction of H2O2. The catalysis currents increased linearly to the H2O2 concentration in a wide range of 5.0 x 10(-5) - 1.15 x 10(-3) M. Based on the multilayer film, the third-generation biosensor could be constructed for the determination of H2O2. (C) 2007 Elsevier B.V. All rights reserved.
Language英语
URL查看原文
WOS IDWOS:000252604500008
Citation statistics
Cited Times:161[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/99979
Collection中国科学院大连化学物理研究所
Corresponding AuthorSun LX(孙立贤); Xu F(徐芬); Sun LX(孙立贤); Xu F(徐芬)
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, Mat & Thermochem Lab, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Xiang, Cuili,Zou, Yongjin,Sun, Li-Xian,et al. Direct electron transfer of cytochrome c and its biosensor based on gold nanoparticles/room temperature ionic liquid/carbon nanotubes composite film[J]. ELECTROCHEMISTRY COMMUNICATIONS,2008,10(1):38-41.
APA Xiang, Cuili.,Zou, Yongjin.,Sun, Li-Xian.,Xu, Fen.,孙立贤.,...&徐芬.(2008).Direct electron transfer of cytochrome c and its biosensor based on gold nanoparticles/room temperature ionic liquid/carbon nanotubes composite film.ELECTROCHEMISTRY COMMUNICATIONS,10(1),38-41.
MLA Xiang, Cuili,et al."Direct electron transfer of cytochrome c and its biosensor based on gold nanoparticles/room temperature ionic liquid/carbon nanotubes composite film".ELECTROCHEMISTRY COMMUNICATIONS 10.1(2008):38-41.
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