The Investigation of Polyethyleneimine Adsorption on Magnetite Nanoparticles by Spin Labels Technique

被引:4
作者
Bychkova, Anna V. [1 ]
Sorokina, Olga N. [1 ]
Kovarski, Alexander L. [1 ]
Shapiro, Anatolii B. [1 ]
Rosenfeld, Mark A. [1 ]
机构
[1] Emanuel Inst Biochem Phys RAS, Moscow 119334, Russia
关键词
Spin Labels; Adsorption; Nitroxide Radicals; Polyethyleneimine; Nanoparticles; Magnetite;
D O I
10.1166/nnl.2011.1215
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Adsorption of polyethyleneimine and 80% ethoxylated polyethyleneimine on the surface of magnetic nanoparticles (magnetite) in aqua medium is studied using spin labels technique. The technique has been adapted for adsorption study in magnetic dispersions. Stable nitroxide radicals covalently bound to macromolecules were used as spin labels. The value of polymers adsorption on nanoparticles was calculated.
引用
收藏
页码:591 / 593
页数:3
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