Novel amperometric biosensor based on composite film assembled by polyelectrolyte-surfactant polymer, carbon nanotubes and hemoglobin
文献类型：期刊论文
| 作者 | Chen, Liang; Lu, Gongxuan |
| 刊名 | Sensors and actuators b-chemical
 |
| 出版日期 | 2007-02-20 |
| 卷号 | 121期号:2页码:423-429 |
| 关键词 | Biosensor Hydrogen peroxide Composite Hemoglobin Carbon nanotube Polyelectrolyte-surfactant |
| ISSN号 | 0925-4005 |
| DOI | 10.1016/j.snb.2006.04.067 |
| 通讯作者 | Lu, gongxuan(gxlu@ns.lzb.ac.cn) |
| 英文摘要 | A novel hydrogen peroxide biosensor has been developed based on the encapsulation of hemoglobin (hb) in the composite film of carboxylic carbon nanotubes and polyelectrolyte-surfactant polymer. the direct electron transfer of the hb entrapped in the composite film was observed. the formal potential of the encapsulated hb was -0.287 v versus sce and the heterogeneous electron transfer rate constant was 0.4 s(-1) in a 0.1 m phosphate buffer solution (ph 7.0). an ft-ir spectroscopy study confirms that the secondary structure of hb encapsulated in the composite film still retains the original arrangement. it is suggested that the achieved faradic response of the hemoglobin be due to the promotion properties of carbon nanotube in electron transfer in biomembrane-like polyelectrolyte-surfactant polymer. the entrapped hb exhibited excellent electrocatalytic activity to reduce hydrogen peroxide. the properties of functional composite film, together with the bioelectrochemical catalytic activity, could make them useful in 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 ELECTROCHEMISTRY ; MODIFIED ELECTRODES ; BIOELECTROCHEMISTRY ; DOPAMINE ; ACID |
| WOS研究方向 | Chemistry ; Electrochemistry ; Instruments & Instrumentation |
| WOS类目 | Chemistry, Analytical ; Electrochemistry ; Instruments & Instrumentation |
| 语种 | 英语 |
| WOS记录号 | WOS:000244545100011 |
| 出版者 | ELSEVIER SCIENCE SA |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2382181 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Lu, Gongxuan |
| 作者单位 | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Liang,Lu, Gongxuan. Novel amperometric biosensor based on composite film assembled by polyelectrolyte-surfactant polymer, carbon nanotubes and hemoglobin[J]. Sensors and actuators b-chemical,2007,121(2):423-429. |
| APA | Chen, Liang,&Lu, Gongxuan.(2007).Novel amperometric biosensor based on composite film assembled by polyelectrolyte-surfactant polymer, carbon nanotubes and hemoglobin.Sensors and actuators b-chemical,121(2),423-429. |
| MLA | Chen, Liang,et al."Novel amperometric biosensor based on composite film assembled by polyelectrolyte-surfactant polymer, carbon nanotubes and hemoglobin".Sensors and actuators b-chemical 121.2(2007):423-429. |
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来源：中国科学院大学
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