Direct electrochemistry and surface plasmon resonance characterization of alternate layer-by-layer self-assembled DNA-myoglobin thin films on chemically modified gold surfaces
文献类型：期刊论文
| 作者 | Jin YD ; Shao Y ; Dong SJ |
| 刊名 | langmuir
 |
| 出版日期 | 2003 |
| 卷号 | 19期号:11页码:4771-4777 |
| 关键词 | BIOMEMBRANE-LIKE FILMS ELECTRON-TRANSFER IMAGING MEASUREMENTS CYTOCHROME-C INDIUM OXIDE ADSORPTION OXIDATION PROTEINS RNA POLY(ALLYLAMINE) |
| ISSN号 | 0743-7463 |
| 通讯作者 | dong sj |
| 中文摘要 | alternate layer-by-layer (l-by-l) polyion adsorption onto gold electrodes coated with chemisorbed cysteamine gave stable, electroactive multilayer films containing calf thymus double stranded dna (ct ds-dna) and myoglobin (mb). direct, quasi-reversible electron exchange between gold electrodes and proteins involved the mb heme fe2+/fe3+ redox couple. the formation of l-by-l (dna/mb), films was characterized by both in situ surface plasmon resonance (spr) monitoring and cyclic voltammetry (cv). the effective thickness of dna and mb monolayers in the (dna/mb)l bilayer were 1.0 +/- 0.1 and 2.5 +/- 0.1 mn, corresponding to the surface coverage of similar to65% and similar to89% of its full packed monolayer, respectively. a linear increase of film thickness with increasing number of layers was confirmed by spr characterizations. at ph 5.5, the electroactive mb in films are those closest to the electrode surface; additional protein layers did not communicate with the electrode. cv studies showed that electrical communication might occur through hopping conduction via the electrode/base pair/mb channel, thanks to the dna-mb interaction. after the uptake of zn2+, a special electrochemical behavior, where mbfe(2+) acts as a dna-binding reduction catalyst in the zn2+-dna/mb assembly, takes place. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000183136900038 |
| 公开日期 | 2010-09-13 |
| 源URL | [http://202.98.16.49/handle/322003/17357]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Jin YD,Shao Y,Dong SJ. Direct electrochemistry and surface plasmon resonance characterization of alternate layer-by-layer self-assembled DNA-myoglobin thin films on chemically modified gold surfaces[J]. langmuir,2003,19(11):4771-4777. |
| APA | Jin YD,Shao Y,&Dong SJ.(2003).Direct electrochemistry and surface plasmon resonance characterization of alternate layer-by-layer self-assembled DNA-myoglobin thin films on chemically modified gold surfaces.langmuir,19(11),4771-4777. |
| MLA | Jin YD,et al."Direct electrochemistry and surface plasmon resonance characterization of alternate layer-by-layer self-assembled DNA-myoglobin thin films on chemically modified gold surfaces".langmuir 19.11(2003):4771-4777. |
入库方式： OAI收割
来源：长春应用化学研究所
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