Direct electrochemistry of hemoglobin and myoglobin at didodecyldimethylammonium bromide-modified powder microelectrode and application for electrochemical detection of nitric oxide
文献类型：期刊论文
| 作者 | Guo, Zhimou1,2; Chen, Jian1,2; Liu, Huan2; Cha, Chuansin2 |
| 刊名 | analytica chimica acta
 |
| 出版日期 | 2008-01-21 |
| 卷号 | 607期号:1页码:30-36 |
| 关键词 | hemoglobin myoglobin direct electrochemistry powder microelectrode nitric oxide |
| 英文摘要 | hemoglobin (hb) and myoglobin (mb) were immobilized at the didodecyldimethylammonium bromide (ddab)-modified powder microelectrode (pme) to fabricate hb-ddab-pme and mb-ddab-pme. direct electrochemistry of hb and mb were achieved on the ddab-modified pme. the formal potential was -0.224v for hb and -0.212v for mb (vs. sce). the apparent surface concentration of hb and mb at the electrode surface was 2.83 x 10(-8) and 9.94 x 10(-8) mol cm(-2). the hb-ddab-pme and mb-ddab-pme were successfully applied for measurement of no in vitro. the anodic current peaks for no oxidation at +0.7 v and the cathodic current peaks for no reduction at -0.85v on the cv curves were obtained on the modified electrodes. for detection of no at +0.7 v, the sensitivity is 3.31 ma mu m-1 cm(-2) for hb-ddab-pme and 0.6 ma mu m-1 cm(-2) for mb-ddab-pme. the detection limit is 5 nm for hb-ddab-pme and 9 nm for mb-ddab-pme. the linear response range is 9-100 and 28-330 nm for hb- and mb-modified pme, respectively. for the electrochemical detection of no at -0.85 v by using hb-ddab-pme, the detection sensitivity is 39.56 mu a mu m-1 cm(-2); the detection limit is as low as 0.2 mu m; and the linear response range is 1.90-28.08 mu m. (c) 2007 elsevier b.v. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | chemistry, analytical |
| 研究领域[WOS] | chemistry |
| 关键词[WOS] | by-layer films ; direct electron-transfer ; shell nanocluster films ; heme-proteins ; clay nanoparticles ; surfactant films ; ascorbic-acid ; electrocatalysis ; biosensor ; dna |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000252834200003 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/141083]  |
| 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.Wuhan Univ, Coll Chem & Mol Sci, Lab Electrochem, Wuhan 430072, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guo, Zhimou,Chen, Jian,Liu, Huan,et al. Direct electrochemistry of hemoglobin and myoglobin at didodecyldimethylammonium bromide-modified powder microelectrode and application for electrochemical detection of nitric oxide[J]. analytica chimica acta,2008,607(1):30-36. |
| APA | Guo, Zhimou,Chen, Jian,Liu, Huan,&Cha, Chuansin.(2008).Direct electrochemistry of hemoglobin and myoglobin at didodecyldimethylammonium bromide-modified powder microelectrode and application for electrochemical detection of nitric oxide.analytica chimica acta,607(1),30-36. |
| MLA | Guo, Zhimou,et al."Direct electrochemistry of hemoglobin and myoglobin at didodecyldimethylammonium bromide-modified powder microelectrode and application for electrochemical detection of nitric oxide".analytica chimica acta 607.1(2008):30-36. |
入库方式： OAI收割
来源：大连化学物理研究所
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