Registration Number
0210U006919,
0107U011980
, R & D reports
Title
Investigation of the properties of silica-magnetite composites in the processes of magnetocontrolled separation and selective sorption of different types of nucleic acids.
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Head
Dudchenko N.O.,
Registration Date
23-12-2010
Organization
Institute of the Applied Problems of Physics and Biophysics of the National Academy of Scienes
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In project course techniques and experimentally definitely physical and chemical parameters of synthesis of nanocomposites of magnetite with a covering of silica, hytozan, a dextran, and hydroxietylchromal are developed; it is synthesized a set of silika-magnetite nanocomposites with different physical and chemical properties; it is investigated physical and chemical properties of synthesized nanoparticles and the new data concerning structure of synthesized nanocomposites namely structural features of a surface of nanoparticles by means is obtained. Structural features of a surface are very important characteristic of nanoparticles the biological substances appointed for selective magnetic separation as for separation of certain substances necessary presence of certain functional groups on a surface of magnetic nanoparticles, density of their arrangement is also important. It is shown that the form of loops of a hysteresis for the synthesized samples of nanocomposites is extremely thin, they don't show residual magnetization or coercivity . That is, the synthesized samples of nanocomposites are superparamagnetic.
Product Description
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Алексейцев Ю. О.
Волкова Н.М.
Дудченко А. К.
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2020-04-02
