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Surface modification and characterization of magnetic polymer nanospheres prepared by miniemulsion polymerization
文献类型：期刊论文
| 作者 | Liu, XQ; Guan, YP; Ma, ZY; Liu, HZ |
| 刊名 | LANGMUIR
 |
| 出版日期 | 2004-11-09 |
| 卷号 | 20期号:23页码:10278-10282 |
| 关键词 | amino-silane nanoparticles protein spectroscopy purification particles |
| ISSN号 | 0743-7463 |
| 其他题名 | Langmuir |
| 中文摘要 | A novel and effective protocol for the surface modification and quantitative characterization of magnetic polymeric nanospheres prepared by miniemulsion polymerization is reported. Composite nanospheres consisting of polymer-coated iron oxide nanoparticles were prepared by the miniemulsion polymerization of methyl methacrylate and divinylbenzene in the presence of magnetic fluid. Surface modification reaction of the magnetic polymer with poly(ethylene glycol) (PEG) was employed to obtain a hydrophilic hydroxyl-group-functionalized magnetic nanospheres. An affinity dye, Cibacron blue F3G-A (CB), was then coupled covalently to prepare a magnetic nonporous affinity adsorbent. The morphology and magnetic property of the polymer nanospheres obtained were examined by transmission electron microscopy and a vibrating sample magnetometer. The contents of surface groups modified were quantitatively measured by using diffusive reflectance Fourier transform infrared spectroscopy on the basis of a linear relationship between the intensity ratio of IC-O-C/I-C=O and the content of PEG. X-ray photoelectron spectroscopy (XPS) was used to examine the surface of magnetic nanospheres. It was confirmed by the comparison of XPS spectra of both dye-coated and uncoated magnetic nanospheres to which the CB ligand was coupled, and the surface of the PEG-modified nanospheres had an exact 3:7 atomic ratio of sulfur to nitrogen. |
| 英文摘要 | A novel and effective protocol for the surface modification and quantitative characterization of magnetic polymeric nanospheres prepared by miniemulsion polymerization is reported. Composite nanospheres consisting of polymer-coated iron oxide nanoparticles were prepared by the miniemulsion polymerization of methyl methacrylate and divinylbenzene in the presence of magnetic fluid. Surface modification reaction of the magnetic polymer with poly(ethylene glycol) (PEG) was employed to obtain a hydrophilic hydroxyl-group-functionalized magnetic nanospheres. An affinity dye, Cibacron blue F3G-A (CB), was then coupled covalently to prepare a magnetic nonporous affinity adsorbent. The morphology and magnetic property of the polymer nanospheres obtained were examined by transmission electron microscopy and a vibrating sample magnetometer. The contents of surface groups modified were quantitatively measured by using diffusive reflectance Fourier transform infrared spectroscopy on the basis of a linear relationship between the intensity ratio of IC-O-C/I-C=O and the content of PEG. X-ray photoelectron spectroscopy (XPS) was used to examine the surface of magnetic nanospheres. It was confirmed by the comparison of XPS spectra of both dye-coated and uncoated magnetic nanospheres to which the CB ligand was coupled, and the surface of the PEG-modified nanospheres had an exact 3:7 atomic ratio of sulfur to nitrogen. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| 类目[WOS] | Chemistry, Multidisciplinary ; Chemistry, Physical ; Materials Science, Multidisciplinary |
| 研究领域[WOS] | Chemistry ; Materials Science |
| 关键词[WOS] | AMINO-SILANE ; NANOPARTICLES ; PROTEIN ; SPECTROSCOPY ; PURIFICATION ; PARTICLES |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000224981600060 |
| 公开日期 | 2013-11-05 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/5024]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Lab Separat Sci & Engn, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, XQ,Guan, YP,Ma, ZY,et al. Surface modification and characterization of magnetic polymer nanospheres prepared by miniemulsion polymerization[J]. LANGMUIR,2004,20(23):10278-10282. |
| APA | Liu, XQ,Guan, YP,Ma, ZY,&Liu, HZ.(2004).Surface modification and characterization of magnetic polymer nanospheres prepared by miniemulsion polymerization.LANGMUIR,20(23),10278-10282. |
| MLA | Liu, XQ,et al."Surface modification and characterization of magnetic polymer nanospheres prepared by miniemulsion polymerization".LANGMUIR 20.23(2004):10278-10282. |
入库方式： OAI收割
来源：过程工程研究所
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