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Figure 3 | Nanoscale Research Letters

Figure 3

From: Multifunctional Magnetic-fluorescent Nanocomposites for Biomedical Applications

Figure 3

Preparation of fluorescently labelled silica-coated magnetic nanocomposites. (i) Initial optional coating with sodium silicate; (ii) base catalysed condensation of TEOS on nanoparticle surface; (iii) covalent attachement of carboxyl fluorophore to 3-aminopropyltriethoxysilane via EDC coupling step; (iv) condensation of silane-modified fluorophore onto silica-coated magnetic particle

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