Fe-Doped Sol-Gel Glasses and Glass-Ceramics for Magnetic Hyperthermia
Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy
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Materials 2018, 11(1), 173; https://doi.org/10.3390/ma11010173
Received: 24 December 2017
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Revised: 17 January 2018
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Accepted: 19 January 2018
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Published: 22 January 2018
(This article belongs to the Special Issue Bioactive Glasses 2017)
This work deals with the synthesis and characterization of novel Fe-containing sol-gel materials obtained by modifying the composition of a binary SiO2-CaO parent glass with the addition of Fe2O3. The effect of different processing conditions (calcination in air vs. argon flowing) on the formation of magnetic crystalline phases was investigated. The produced materials were analyzed from thermal (hot-stage microscopy, differential thermal analysis, and differential thermal calorimetry) and microstructural (X-ray diffraction) viewpoints to assess both the behavior upon heating and the development of crystalline phases. N2 adsorption–desorption measurements allowed determining that these materials have high surface area (40–120 m2/g) and mesoporous texture with mesopore size in the range of 18 to 30 nm. It was assessed that the magnetic properties can actually be tailored by controlling the Fe content and the environmental conditions (oxidant vs. inert atmosphere) during calcination. The glasses and glass-ceramics developed in this work show promise for applications in bone tissue healing which require the use of biocompatible magnetic implants able to elicit therapeutic actions, such as hyperthermia for bone cancer treatment.
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Keywords:
bioactive glass; sol-gel; thermal properties; magnetic; magnetite; mesoporous; hyperthermia; cancer treatment
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MDPI and ACS Style
Baino, F.; Fiume, E.; Miola, M.; Leone, F.; Onida, B.; Laviano, F.; Gerbaldo, R.; Verné, E. Fe-Doped Sol-Gel Glasses and Glass-Ceramics for Magnetic Hyperthermia. Materials 2018, 11, 173. https://doi.org/10.3390/ma11010173
AMA Style
Baino F, Fiume E, Miola M, Leone F, Onida B, Laviano F, Gerbaldo R, Verné E. Fe-Doped Sol-Gel Glasses and Glass-Ceramics for Magnetic Hyperthermia. Materials. 2018; 11(1):173. https://doi.org/10.3390/ma11010173
Chicago/Turabian StyleBaino, Francesco, Elisa Fiume, Marta Miola, Federica Leone, Barbara Onida, Francesco Laviano, Roberto Gerbaldo, and Enrica Verné. 2018. "Fe-Doped Sol-Gel Glasses and Glass-Ceramics for Magnetic Hyperthermia" Materials 11, no. 1: 173. https://doi.org/10.3390/ma11010173
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