An electrochemical sensor for pesticide assays based on carbon nanotube-enhanced acetycholinesterase activity
文献类型：期刊论文
| 作者 | Chen, HD ; Zuo, XL ; Su, S ; Tang, ZZ ; Wu, AB ; Song, SP（宋世平） ; Zhang, DB ; Fan, CH（樊春海） |
| 刊名 | ANALYST
 |
| 出版日期 | 2008 |
| 卷号 | 133期号:9页码:1182 |
| ISSN号 | 0003-2654 |
| 通讯作者 | Zhang, DB (reprint author), Shanghai Jiao Tong Univ, Coll Life Sci & Biotechnol, Shanghai 200240, Peoples R China |
| 英文摘要 | There has been urgent demand for rapid, sensitive and cost-effective pesticide assay technologies due to the global attention of environmental and food-safety problems. Acetycholinesterase (AChE)-based electrochemical sensors have attracted significant interest toward this goal. In this contribution, we introduced multiwalled carbon nanotubes (MWNTs) into our sensor design, where they played dual enhancement roles; first is that MWNTs loaded on glassy carbon (GQ electrodes significantly increase surface areas, facilitating the electrochemical polymerization of prussian blue (PB), a redox mediator for the electrochemical oxidation of the enzymatic product, thiocholine (TCh). Second, MWNTs enhance the enzymatic activity of AChE, as manifested by the decreased Michaelis-Menten constant (K-m). As a result of these two important enhancement factors offered by MWNTs, our electrochemical pesticide sensor exhibited rapid response and high sensitivity toward the detection of a series of pesticides. Moreover, we demonstrated that this sensor was stable, reproducible and selective enough for detection in real samples. |
| 学科主题 | Chemistry; Science & Technology - Other Topics; Materials Science; Physics |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000259449400009 |
| 公开日期 | 2012-04-18 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/7644]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2004-2010年 |
| 推荐引用方式 GB/T 7714 | Chen, HD,Zuo, XL,Su, S,et al. An electrochemical sensor for pesticide assays based on carbon nanotube-enhanced acetycholinesterase activity[J]. ANALYST,2008,133(9):1182. |
| APA | Chen, HD.,Zuo, XL.,Su, S.,Tang, ZZ.,Wu, AB.,...&Fan, CH.(2008).An electrochemical sensor for pesticide assays based on carbon nanotube-enhanced acetycholinesterase activity.ANALYST,133(9),1182. |
| MLA | Chen, HD,et al."An electrochemical sensor for pesticide assays based on carbon nanotube-enhanced acetycholinesterase activity".ANALYST 133.9(2008):1182. |
入库方式： OAI收割
来源：上海应用物理研究所
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