Monodisperse core–shell particles composed of magnetite and dye-functionalized mesoporous silica
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Hybrid particles with a core–shell structure have been obtained in the form of monodisperse spherical mesoporous silica particles filled with magnetite and covered with a mesoporous silica shell functionalized with a luminescent dye. The particles have a small root-mean-square size deviation (at most 10%), possess a specific surface area and specific pore volume of up to 250 m2/g and 0.15 cm3/g, respectively, and exhibit visible luminescence peaked at a wavelength of 530 nm. The particles can be used in diagnostics of cancerous diseases, serving simultaneously for therapeutic (magnetic hyperthermia and targeted drug delivery) and diagnostic (contrast agent for magnetic-resonance tomography and luminescent marker) purposes.
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- 10.S. Riaz, M. Bashir, and S. Naseem, IEEE Trans. Magn. 50, 4003304 (2014).Google Scholar