Antibody oriented immobilization on gold using the reaction between carbon disulfide and amine groups and its application in immunosensing
文献类型：期刊论文
| 作者 | Niu Y(牛宇) ; Matos AI; Abrantes LM; Viana AS; Jin G(靳刚)
|
| 刊名 | LANGMUIR
 |
| 出版日期 | 2012-12-21 |
| 卷号 | 28期号:51页码:17718-17725 |
| 通讯作者邮箱 | anaviana@fc.ul.pt |
| 关键词 | Adsorption Atomic force microscopy Carbon disulfide Cyclic voltammetry Gold Immunosensors Organic compounds Surface plasmon resonance Ultraviolet visible spectroscopy |
| ISSN号 | 0743-7463 |
| 产权排序 | 1 NML, Institute of Mechanics, Chinese Academy of Sciences, 100190 Beijing, China; 2 Department of Chemistry and Biochemistry, Faculty of Science, University of Lisbon, 1749-016 Lisbon, Portugal |
| 通讯作者 | Viana A.S. |
| 合作状况 | 国际 |
| 中文摘要 | Carbon disulfide (CS2) can spontaneously react with amine groups to form dithiocarbamates on gold surface, providing the possibility to immobilize some compounds with primary or secondary amine groups in one step. Using this principle, an immunosensor interface prepared for immunoglobulin G (IgG) sensing surface toward anti-IgG has been fabricated for the first time by simply immersing gold slides into a mixed aqueous solution of CS2 and protein A, followed by incubation in immunoglobulin G solution. The reaction between CS2 and protein A has been followed by UV-vis spectroscopy, whereas cyclic voltammetry has been employed in the characterization of the modified gold surface with CS2 and protein A, both methods indicating that protein A immobilization is implemented by CS2. Conventional ellipsometry, atomic force microscopy (AFM), as well as surface plasmon resonance (SPR) have been used to evaluate the specific binding of protein A with IgG and IgG with anti-IgG, revealing that IgG is specifically captured to form the biosensing interface, maintaining its bioactivity. Compared to direct adsorption of IgG on the gold surface, the IgG sensing surface constructed of CS2 and protein A is far more sensitive to capture anti-IgG as its target molecule. In addition, the modified surface is proven to have good capability to inhibit nonspecific adsorption, as supported by control experiments using lysozyme and BSA. To conclude, antibody immobilization using this one-step method has potential as a simple and convenient surface modification approach for immunosensor development. |
| 英文摘要 | Ial as a simple and convenient surface modification approach for immunosensor development. |
| 学科主题 | 交叉与边缘领域的力学 |
| 分类号 | 一类 |
| 收录类别 | SCI ; EI |
| 原文出处 | http://dx.doi.org/10.1021/la303032f |
| 语种 | 英语 |
| WOS记录号 | WOS:000315326300017 |
| 公开日期 | 2013-01-31 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/46783]  |
| 专题 | 力学研究所_国家微重力实验室 |
| 推荐引用方式 GB/T 7714 | Niu Y,Matos AI,Abrantes LM,et al. Antibody oriented immobilization on gold using the reaction between carbon disulfide and amine groups and its application in immunosensing[J]. LANGMUIR,2012,28(51):17718-17725. |
| APA | Niu Y,Matos AI,Abrantes LM,Viana AS,&Jin G.(2012).Antibody oriented immobilization on gold using the reaction between carbon disulfide and amine groups and its application in immunosensing.LANGMUIR,28(51),17718-17725. |
| MLA | Niu Y,et al."Antibody oriented immobilization on gold using the reaction between carbon disulfide and amine groups and its application in immunosensing".LANGMUIR 28.51(2012):17718-17725. |
入库方式： OAI收割
来源：力学研究所
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