Superparamagnetic nanoparticles varying by their chemical composition and synthesis method were used to transfer DNA into somatic cells under the influence of constant magnetic field (method of magnetofection). Magnetite particles obtained by mechanochemical synthesis ensured higher expression of the marker gene GFP (evaluated by fluorescence intensity of the cell lysate) then particles of ferric oxide obtained by chemical co-precipitation and cobalt ferrospinel particles obtained by the mechanochemical method.
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