Single-crystal ceo2 nanocubes used for the direct electron transfer and electrocatalysis of horseradish peroxidase
文献类型：期刊论文
| 作者 | Xiao, Xiaoling; Luan, Qingfen; Yao, Xin; Zhou, Kebin |
| 刊名 | Biosensors & bioelectronics
 |
| 出版日期 | 2009-04-15 |
| 卷号 | 24期号:8页码:2447-2451 |
| 关键词 | Ceo2 nanocubes Direct electron transfer Horseradish peroxidase Chitosan Biosensor |
| ISSN号 | 0956-5663 |
| DOI | 10.1016/j.bios.2008.12.020 |
| 通讯作者 | Yao, xin(yaox@gucas.ac.cn) |
| 英文摘要 | A new horseradish peroxidase (hrp) third-generation electrochemical biosensor based on ceria nanocubes (ceo2-ncs) and chitosan (chit) was developed. the single-crystalline, uniform and size-controlled ceo2-ncs have been synthesized by hydrothermal method. hrp was immobilized in ceo2-ncs and chit film on the glass carbon electrode (hrp/ceo2/chit/gce). compared with hrp-chitosan modified electrode (hrp/chit/gce), hrp/ceo2/chit/gce exhibited a pair of more obvious redox peaks at -0.348 v (versus ag/agcl). experimental results indicate ceo2-ncs greatly promoted the electron transfer between hrp and gce. the immobilized hrp exhibited direct electrochemical behavior toward the reduction of hydrogen peroxide (h2o2). the resulting biosensor showed a linear range of 1-150 mu m and a detection limit of 0.26 mu m estimated at a signal-to-noise ratio of 3. stability and reproducibility of the biosensor were also studied. the biological activity of hrp immobilizing in the composite film was characterized by uv-vis and mr spectra. (c) 2008 elsevier b.v. all rights reserved. |
| WOS关键词 | GLASSY-CARBON ELECTRODE ; GOLD NANOPARTICLE NANOCOMPOSITE ; DIRECT ELECTROCHEMISTRY ; HYDROGEN-PEROXIDE ; IONIC LIQUID ; HEME-PROTEINS ; OXIDE NANOPARTICLES ; GLUCOSE-OXIDASE ; FILMS ; NANOTUBES |
| WOS研究方向 | Biophysics ; Biotechnology & Applied Microbiology ; Chemistry ; Electrochemistry ; Science & Technology - Other Topics |
| WOS类目 | Biophysics ; Biotechnology & Applied Microbiology ; Chemistry, Analytical ; Electrochemistry ; Nanoscience & Nanotechnology |
| 语种 | 英语 |
| WOS记录号 | WOS:000265811000022 |
| 出版者 | ELSEVIER ADVANCED TECHNOLOGY |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2397928 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Yao, Xin |
| 作者单位 | Chinese Acad Sci, Grad Univ, Coll Chem & Chem Engn, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xiao, Xiaoling,Luan, Qingfen,Yao, Xin,et al. Single-crystal ceo2 nanocubes used for the direct electron transfer and electrocatalysis of horseradish peroxidase[J]. Biosensors & bioelectronics,2009,24(8):2447-2451. |
| APA | Xiao, Xiaoling,Luan, Qingfen,Yao, Xin,&Zhou, Kebin.(2009).Single-crystal ceo2 nanocubes used for the direct electron transfer and electrocatalysis of horseradish peroxidase.Biosensors & bioelectronics,24(8),2447-2451. |
| MLA | Xiao, Xiaoling,et al."Single-crystal ceo2 nanocubes used for the direct electron transfer and electrocatalysis of horseradish peroxidase".Biosensors & bioelectronics 24.8(2009):2447-2451. |
入库方式： iSwitch采集
来源：中国科学院大学
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。