Ultra-small superparamagnetic iron oxide nanoparticles as MRI contrast enhancing agents

被引：1
|
作者：
Do, M. A. [1 ]
Lee, H. J. [1 ]
Yeum, J. H. [1 ]
Chang, Y. M. [2 ]
Ghim, H. D. [3 ]
Choi, J. H. [1 ]
机构：
[1] Kyungpook Natl Univ, Dept Adv Organ Mat Sci & Engn, Taegu, South Korea
[2] Kyungpook Natl Univ, Dept Med & Biol Engn, Taegu, South Korea
[3] Kyungpook Natl Univ, Dept Diagnost Radiol, Taegu, South Korea
来源：
MULTI-FUNCTIONAL MATERIALS AND STRUCTURES, PTS 1 AND 2 | 2008年 / 47-50卷
关键词：
ultrasmall superparamagnetic iron oxide nanoparticles; poly(ethyleneimine); magnetic resonance imaging;
D O I：
10.4028/www.scientific.net/AMR.47-50.1076
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Ultrasmall superparamagnetic iron oxide nanoparticles (USPION) as magnetic resonance imaging were synthesized through a sonochemical co-precipitation method with poly (ethyleneimine) (PEI). The size of the USPION was controlled by poly (ethyleneimine) (PEI) contents, ultrasonic exposure time, and Na4OH concentration. The characteristics of PEI-USPION were studied by X-ray diffractometry, magnetic property measurement system, scanning electron microscopy, transmission electron microscopy, and particle size analysis. The PEI-USPION had an average size of 5 similar to 10nm with a narrow size distribution, a perfect magnetite crystal structure, and high saturation magnetization.
引用
收藏
页码：1076 / +
页数：2
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