Facile direct electron transfer in glucose oxidase modified electrodes
文献类型：期刊论文
| 作者 | Chen LW(陈立桅)
|
| 刊名 | ELECTROCHIMICA ACTA
 |
| 出版日期 | 2009-07-15 |
| 卷号 | 54期号:18页码:4316-4320 |
| 关键词 | Glucose oxidase Direct electron transfer Poly-L-lysine Nafion Glucose biosensor |
| 通讯作者 | Chen LW(陈立桅) |
| 合作状况 | 其它 |
| 英文摘要 | Glucose oxidase (GOx) is widely used in the glucose biosensor industry. However, mediatorless direct electron transfer (DET) from GOx to electrode surfaces is very slow. Recently, mediatorless DFT has been reported via the incorporation of nanomaterials such as carbon nanotubes and nanoparticles in the modification of electrodes. Here we report GOx electrodes showing DET without the need for any nanomaterials. The enzyme after immobilization with poly-L-lysine (PLL) and Nafion(R) retains the biocatalytic activities and oxidizes glucose efficiently. The amperometric response of Nafion-PLL-GOx modified electrode is linearly proportional to the concentration of glucose up to 10 mM with a sensitivity of 0.75 mu A/mM at a low detection potential (-0.460 V vs. Ag/AgCl). The methodology developed in this study will have impact on glucose biosensors and biofuel cells and may potentially simplify enzyme immobilization in other biosensing systems. |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000266826200006 |
| 公开日期 | 2010-01-15 |
| 源URL | [http://58.210.77.100/handle/332007/137]  |
| 专题 | 苏州纳米技术与纳米仿生研究所_纳米研究国际实验室_陈立桅团队 |
| 通讯作者 | Chen LW(陈立桅) |
| 推荐引用方式 GB/T 7714 | Chen LW. Facile direct electron transfer in glucose oxidase modified electrodes[J]. ELECTROCHIMICA ACTA,2009,54(18):4316-4320. |
| APA | Chen LW.(2009).Facile direct electron transfer in glucose oxidase modified electrodes.ELECTROCHIMICA ACTA,54(18),4316-4320. |
| MLA | Chen LW."Facile direct electron transfer in glucose oxidase modified electrodes".ELECTROCHIMICA ACTA 54.18(2009):4316-4320. |
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