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Facile Synthesis and Characterization of MnxZn1-xFe2O4/Activated Carbon Composites for Biomedical Applications
J.C. Ríos-Hurtado1, A.C. Martínez-Valdés1, J.R. Rangel-Méndez2, J.C. Ballesteros-Pacheco1, E.M. Múzquiz-Ramos1
1 Facultad de Ciencias Químicas, Universidad Autónoma de Coahuila, Blvd. V. Carranza y José Cárdenas Valdés, C.P. 25280, Saltillo, México.
2 División de Ciencias Ambientales, Instituto Potosino de Investigación Científica y Tecnológica A.C., Camino a la Presa de San José 2055, Col. Lomas 4ª Sección, C.P. 78216, San Luis Potosí. México.
received Febuary 24, 2016, received in revised form April 20, 2016, accepted May 15, 2016
Vol. 7, No. 3, Pages 289-294 DOI: 10.4416/JCST2016-00020
Abstract
The synthesis of MnxZn1-xFe2O4 ferrites (x = 0.4, 0.5 and 0.6) by means of the co-precipitation method is reported. Furthermore, a composite of Mn0.4Zn0.6Fe2O4/activated carbon was prepared with the mechanosynthesis method. The magnetic, structural, morphological and chemical properties were analyzed by means of VSM, XRD, SEM, FTIR and Boehm's titration. The heating capacity was evaluated under a magnetic field using solid-state induction heating equipment, in addition a hemolysis test was performed using human red blood cells. With regard to the synthesis of manganese-zinc ferrite, the results indicated that Mn0.4Zn0.6Fe2O4 ferrite showed higher saturation magnetization (64.48 emu/g) than the other ferrite obtained, with superparamagnetic behavior. The Mn0.4Zn0.6Fe2O4/activated carbon composite was able to heat in concentrations of 10 mg/ml under a magnetic field (10.2 kAm-1 and frequency 200 kHz), increasing the temperature up to 42.5 °C. The hemolysis test indicated that the presence of activated carbon reduces the hemolytic behavior of the ferrite. Thanks to its heating capacity and non-hemolytic activity, the Mn0.4Zn0.6Fe2O4/activated carbon composite is a potential candidate for use in biomedical applications.
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Keywords
Mn-Zn ferrite, superparamagnetic, activated carbon, composite, hemolysis.
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