Graphitized macroporous carbon microarray with hierarchical mesopores as host for the fabrication of electrochemical biosensor
文献类型：期刊论文
| 作者 | Lu, Xianbo1; Xiao, Yi2; Lei, Zhibin2; Chen, Jiping1 |
| 刊名 | biosensors & bioelectronics
 |
| 出版日期 | 2009-09-15 |
| 卷号 | 25期号:1页码:244-247 |
| 关键词 | Biosensor Graphitized ordered macroporous carbon Direct electron transfer Hemoglobin Hydrogen peroxide |
| 产权排序 | 1;1 |
| 通讯作者 | 陈吉平 |
| 英文摘要 | a novel graphitized ordered macroporous carbon (gmc, pore size similar to 380 nm) with hierarchical mesopores (2-30 nm) and high graphitization degree was prepared by nickel-catalyzed graphitization of polystyrene arrays. the obtained gmc possessed high specific surface area, large pore volume, and good electrical conductivity, which was explored for the enzyme entrapment and biosensor fabrication by a facile method. with advantages of novel nanostructure and good electrical conductivity, direct electrochemistry of hemoglobin (a model protein) was observed on the gmc-based biocomposite with a formal potential of -0.36v (vs. ag/agcl) and an apparent heterogeneous electron transfer rate constant (k(s)) of 1.2 s(-1) in ph 7.0 buffer. comparative studies revealed that gmc offered significant advantages over carbon nanotubes (cnts) in facilitating direct electron transfer of entrapped hb. the fabricated biosensor exhibited good sensitivity (101.6 ma cm(-2) m-1) and reproducibility, wide linear range (1-267 mu m), low detection limit (0.1 mu m), and good long-term stability for h2o2 detection. gmc proved to be a promising matrix for enzyme entrapment and biosensor fabrication, and may find wide potential applications in biomedical detection and environmental analyses. (c) 2009 elsevier b.v. all rights reserved. |
| WOS标题词 | science & technology ; life sciences & biomedicine ; physical sciences |
| 类目[WOS] | biophysics ; biotechnology & applied microbiology ; chemistry, analytical ; electrochemistry ; nanoscience & nanotechnology |
| 研究领域[WOS] | biophysics ; biotechnology & applied microbiology ; chemistry ; electrochemistry ; science & technology - other topics |
| 关键词[WOS] | direct electron-transfer ; peroxidase-activity ; glucose biosensor ; construction ; functionalization ; proteins ; systems ; layer |
| 收录类别 | SCI |
| 原文出处 | false |
| 语种 | 英语 |
| WOS记录号 | WOS:000270538400040 |
| 公开日期 | 2010-11-30 |
| 源URL | [http://159.226.238.44/handle/321008/101793]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China 2.Liaoning Normal Univ, Fac Chem & Chem Engn, Inst Chem Functionalized Mat, Dalian 116029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lu, Xianbo,Xiao, Yi,Lei, Zhibin,et al. Graphitized macroporous carbon microarray with hierarchical mesopores as host for the fabrication of electrochemical biosensor[J]. biosensors & bioelectronics,2009,25(1):244-247. |
| APA | Lu, Xianbo,Xiao, Yi,Lei, Zhibin,&Chen, Jiping.(2009).Graphitized macroporous carbon microarray with hierarchical mesopores as host for the fabrication of electrochemical biosensor.biosensors & bioelectronics,25(1),244-247. |
| MLA | Lu, Xianbo,et al."Graphitized macroporous carbon microarray with hierarchical mesopores as host for the fabrication of electrochemical biosensor".biosensors & bioelectronics 25.1(2009):244-247. |
入库方式： OAI收割
来源：大连化学物理研究所
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