热门
Preparation and characterization of amino-silane modified superparamagnetic silica nanospheres
文献类型：期刊论文
| 作者 | Liu, XQ; Ma, ZY; Xing, JM; Liu, HZ |
| 刊名 | JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
 |
| 出版日期 | 2004-03-01 |
| 卷号 | 270期号:1-2页码:1-6 |
| 关键词 | preparation amino-silane magnetic silica nanosphere protein immobilization |
| ISSN号 | 0304-8853 |
| 其他题名 | J. Magn. Magn. Mater. |
| 中文摘要 | Magnetite nanoparticles were prepared by coprecipitation of Fe2+ and Fe3+ with NH4OH, and then, silica was coated on the surface of the magnetite nanoparticles to form well-dispersed magnetic silica nanospheres. The size of spheres was controlled by changing the ratio of SiO2 to Fe3O4. Amino-silane was covalently coupled to the surface of the magnetic silica nanospheres and activated by glutaraldehyde. The morphology and magnetic properties of magnetic silica nanospheres were examined by TEM and VSM. The nanospheres have an average size of 100-200 nm diameter and possess superparamagnetic characteristics. Powder X-ray diffraction measurements show the spinel structure for the magnetite particles coated by silica. By protein immobilization assay, it was proved that the amino-silane treated magnetic silica nanospheres could significantly improve the capacity of protein immobilization. (C) 2003 Published by Elsevier B.V. |
| 英文摘要 | Magnetite nanoparticles were prepared by coprecipitation of Fe2+ and Fe3+ with NH4OH, and then, silica was coated on the surface of the magnetite nanoparticles to form well-dispersed magnetic silica nanospheres. The size of spheres was controlled by changing the ratio of SiO2 to Fe3O4. Amino-silane was covalently coupled to the surface of the magnetic silica nanospheres and activated by glutaraldehyde. The morphology and magnetic properties of magnetic silica nanospheres were examined by TEM and VSM. The nanospheres have an average size of 100-200 nm diameter and possess superparamagnetic characteristics. Powder X-ray diffraction measurements show the spinel structure for the magnetite particles coated by silica. By protein immobilization assay, it was proved that the amino-silane treated magnetic silica nanospheres could significantly improve the capacity of protein immobilization. (C) 2003 Published by Elsevier B.V. |
| WOS标题词 | Science & Technology ; Technology ; Physical Sciences |
| 类目[WOS] | Materials Science, Multidisciplinary ; Physics, Condensed Matter |
| 研究领域[WOS] | Materials Science ; Physics |
| 关键词[WOS] | ENZYME IMMOBILIZATION ; MAGNETIC PARTICLES ; PURIFICATION ; MICROSPHERES ; PROTEINS |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000188887400001 |
| 公开日期 | 2013-11-05 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/4990]  |
| 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,Ma, ZY,Xing, JM,et al. Preparation and characterization of amino-silane modified superparamagnetic silica nanospheres[J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,2004,270(1-2):1-6. |
| APA | Liu, XQ,Ma, ZY,Xing, JM,&Liu, HZ.(2004).Preparation and characterization of amino-silane modified superparamagnetic silica nanospheres.JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,270(1-2),1-6. |
| MLA | Liu, XQ,et al."Preparation and characterization of amino-silane modified superparamagnetic silica nanospheres".JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS 270.1-2(2004):1-6. |
入库方式： OAI收割
来源：过程工程研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。