摘要
目的水热法制备超顺磁性四氧化三铁纳米颗粒,检测其物理学及磁学性质,并探讨其用于物理化学溶栓的可行性。方法水热法制备聚乙二醇6000包被的四氧化三铁颗粒,采用X射线衍射法分析其结构,用扫描电镜测量其直径及分布,用振动样品磁强计检测磁学参数。结果所得样品为四氧化三铁晶体,粒径为200 nm,质量饱和磁场强度为79.8 emu/g Fe。结论制备的样品粒径均一,分散性好,超顺磁性,水溶性好,可用于物理化学溶栓。
Objective To prepare super paramagnetic Fe304 by hydrothermal method and test the physical and magnetic properties. Methods The Fe304 nanoparticles with PEG6000-eoating is obtained by means of hydrothermal method, the structure is analyzed by X-ray powder diffraction method, the size and distribution is measured by transmission electron microscope, and the susceptibility is measured by Vibrating Sample Magnetometer dollars. Results The particle diameter size of the super paramagnetic Fe3 04 is 200 nm. These particles possess some characteristics of super paramagnetism. The quality saturation magnetic intensity is 79.8 emu/g Fe. Conclusions The samples are dispersed,water-soluble, super-paramagnetic and homogeneous in particle diameter,which can be used in physical chemistry thrombolysis.
出处
《北京生物医学工程》
2012年第6期603-606,共4页
Beijing Biomedical Engineering
基金
国家自然科学基金(81070946/H0906)资助
关键词
超顺磁性四氧化三铁
水热法
物理化学溶栓
super paramagnetie Fe304
hydrothermal method
physical chemistry thrombolysis
