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- W1570487182 abstract "A synthetic method for the fabrication of silica-based mesoporous magnetic (Fe or iron oxide spinel) nanocomposites with enhanced adsorption and magnetic capabilities is presented. The successful in situ synthesis of magnetic nanoparticles is a consequence of the incorporation of a small amount of carbon into the pores of the silica, this step being essential for the generation of relatively large iron oxide magnetic nanocrystals ( approximately 10+/-3nm) and for the formation of iron nanoparticles. These composites combine good magnetic properties (superparamagnetic behaviour in the case of SiO(2)-C-Fe(3)O(4)/gamma-Fe(2)O(3) samples) with a large and accessible porosity made up of wide mesopores (>9nm). In the present work, we have demonstrated the usefulness of this kind of composite for the adsorption of a globular protein (hemoglobin). The results obtained show that a significant amount of hemoglobin can be immobilized within the pores of these materials (up to 180mgg(-1) for some of the samples). Moreover, we have proved that the composite loaded with hemoglobin can be easily manipulated by means of an external magnetic field." @default.
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- W1570487182 date "2009-12-01" @default.
- W1570487182 modified "2023-09-26" @default.
- W1570487182 title "Fabrication of mesoporous SiO2–C–Fe3O4/γ–Fe2O3 and SiO2–C–Fe magnetic composites" @default.
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- W1570487182 doi "https://doi.org/10.1016/j.jcis.2009.09.003" @default.
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