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Journal of Sol-Gel Science and Technology
Erschienen in: Journal of Sol-Gel Science and Technology 1/2018

04.06.2018 | Original Paper: Sol–gel and hybrid materials for biological and health (medical) applications

Freeze-drying assisted sol–gel-derived silica-based particles embedding iron: synthesis and characterization

verfasst von: L. B. Chiriac, M. Todea, A. Vulpoi, M. Muresan-Pop, R. V. F. Turcu, S. Simon

Erschienen in: Journal of Sol-Gel Science and Technology | Ausgabe 1/2018

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Abstract

New silica-based particles embedding iron were synthesized following a freeze-drying-assisted sol–gel route. The samples were preliminary characterized in view of potential applications as theranostic magnetic resonance imaging (MRI) contrast agents and for hyperthermia treatment. The structural changes induced by iron addition were studied by X-ray diffraction, Fourier transform infrared and electron paramagnetic resonance spectroscopies. The addition of Fe2O3 impedes the SiO2 crystallization denoting that iron plays, in this case, the role of a glass network stabilizer. The composition on surface and nearby was analyzed by X-ray photoelectron spectroscopy and energy dispersive X-ray spectroscopy both before and after samples immersion in simulated body fluid. The results suggest the nominal composition with 5 mol% Fe2O3 added to 0.7SiO2∙0.3Na2O matrix of interest for further investigations as potential MRI contrast agent and hyperthermia vector.
Vorheriger Artikel Light-activated hybrid organic/inorganic antimicrobial coatings
Nächster Artikel Synthesis and characterization of tungstophosphoric acid-modified mesoporous sponge-like TUD-1 materials

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Metadaten
Titel
Freeze-drying assisted sol–gel-derived silica-based particles embedding iron: synthesis and characterization
verfasst von
L. B. Chiriac
M. Todea
A. Vulpoi
M. Muresan-Pop
R. V. F. Turcu
S. Simon
Publikationsdatum
04.06.2018
Verlag
Springer US
Erschienen in
Journal of Sol-Gel Science and Technology / Ausgabe 1/2018
Print ISSN: 0928-0707
Elektronische ISSN: 1573-4846
DOI
https://doi.org/10.1007/s10971-018-4702-2

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Correction

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