Biocompatible magnetic core/shell nanoparticles

被引:70
作者
Goetze, T [1 ]
Gansau, C [1 ]
Buske, N [1 ]
Roeder, M [1 ]
Görnert, P [1 ]
Bahr, M [1 ]
机构
[1] Berlin Heart AG, D-12247 Berlin, Germany
关键词
preparation; magnetic particles; core diameter; adsorbed layer;
D O I
10.1016/S0304-8853(02)00624-8
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Biocompatible magnetic fluids composed of modified nano-sized magnetic iron oxide particles have been prepared. The magnetic particles have been obtained (diameter in the order 2-30nm) by variations of the concentration of reactants, temperature, operation time and pH conditions as well as the electrolyte concentration. Besides one- or two-step coating processes were used successfully. The adsorption process of the modified dextran was checked by determining adsorption isotherms at room temperature. The results are compared with adsorption behaviour of natural acids and surfactants. The characterization of the magnetic particles by various techniques is described. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:399 / 402
页数:4
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