The adsorption of dopamine on gold and its interactions with iron(III) ions studied by microcantilevers
文献类型：期刊论文
| 作者 | Xu YM ; Zhang BL ; Wu SH ; Xia Y |
| 刊名 | analytica chimica acta
 |
| 出版日期 | 2009 |
| 卷号 | 649期号:1页码:117-122 |
| 关键词 | SELF-ASSEMBLED MONOLAYERS SURFACE STRESS PHOTOTHERMAL SPECTROSCOPY PARKINSONS-DISEASE CANTILEVER ARRAYS NEUROMELANIN ELECTRODES SENSOR ACID IRON |
| ISSN号 | 0003-2670 |
| 通讯作者 | zhang bl |
| 中文摘要 | the adsorption of dopamine (da) molecules on gold and their interactions with fe3+ were studied by a microcantilever in a flow cell. the microcantilever bent toward the au side with the adsorption of da due to the change of surface stress induced by the intermolecular hydrogen bonds of da or the charge transfer effect between adsorbates and the substrate. the interaction process between da adsorbates and fe3+ was revealed by the deflection curves of microcantilever. as indicated by the appearance of a variation during the decline of curves, two steps were observed in the curve at relative high concentrations of fe3+. in this case, fe3+ reacted with da molecules only in the outer layers and the complexes removed with solution. then fe3+ reacted further with da molecules forming the surface complex in the first layer next to the gold. at this stage, the stability of surface complexes was time dependent, i.e., unstable initially and stable finally. this may be due to the surface complexes change from mono-dentate to bi-dentate complexes. in another case, i.e., at relative low concentration of fe3+, only the first step was observed as indicated by the absence of a variation. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000269169100015 |
| 公开日期 | 2010-05-27 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/12429]  |
| 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 | Xu YM,Zhang BL,Wu SH,et al. The adsorption of dopamine on gold and its interactions with iron(III) ions studied by microcantilevers[J]. analytica chimica acta,2009,649(1):117-122. |
| APA | Xu YM,Zhang BL,Wu SH,&Xia Y.(2009).The adsorption of dopamine on gold and its interactions with iron(III) ions studied by microcantilevers.analytica chimica acta,649(1),117-122. |
| MLA | Xu YM,et al."The adsorption of dopamine on gold and its interactions with iron(III) ions studied by microcantilevers".analytica chimica acta 649.1(2009):117-122. |
入库方式： OAI收割
来源：长春应用化学研究所
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