Universidad Complutense de Madrid
E-Prints Complutense

Electrochemical synthesis and magnetic properties of MFe_2O_4 (M = Fe, Mn, Co, Ni) nanoparticles for potential biomedical applications

Impacto

Downloads

Downloads per month over past year

Ovejero, Jesús G. and Mayoral, A. and Cañete, M. and García, M. and Hernando Grande, Antonio and Herrasti, P. (2019) Electrochemical synthesis and magnetic properties of MFe_2O_4 (M = Fe, Mn, Co, Ni) nanoparticles for potential biomedical applications. Journal of nanoscience and nanotechnology, 19 (4). pp. 2008-2015. ISSN 1533-4880

[img]
Preview
PDF
8MB

Official URL: http://dx.doi.org/10.1166/jnn.2019.15313




Abstract

In this study, we evaluate the magnetic properties and cytotoxic effect of magnetic nanoparticles (MNPs) based on magnetite and Mn, Co and Ni ferrites, obtained by electrochemical synthesis. These nanoparticles have almost spherical shape and an mode size of 9 +/- 1 nm. The electrochemical synthesis produces a single crystallographic phase with a spinel-like structure in all cases. Magnetization saturation at room temperature varies with the composition of the ferrites from M_S (Fe_3O_4) > M_S (MnFe_2O_4) > M_S (CoFe_2O_4) > M_S (NiFe_2O_4). Ferrite MNPs present low magnetic remanence indicating a superparamagnetic-like response at room temperature. However, the different values of magnetic anisotropy and size produce variations in the values of coercivity and susceptibility of the ferrite MNPs. The cytotoxicity of the different ferrites was evaluated by internalizing MNP in HeLa cancer cells. Although magnetite and Mn ferrite present low toxicity for all the concentrations studied, significant cytotoxic effect were observed when incubating the cells with high concentration of Co and Ni ferrites.


Item Type:Article
Additional Information:

©2019 American Scientific Publishers
The authors thank MINECO (Spain) for financial support under project MAT2015-67557-C2-2-P and MAT2015-67557-C2-1-P. Jesus Garcia Ovejero thanks to the MINECO for the FPI scholarship.

Uncontrolled Keywords:Removal; Electrosynthesis; Ferrites Nanoparticles; Internalization; Magnetic Properties
Subjects:Sciences > Physics > Materials
Sciences > Physics > Solid state physics
ID Code:58723
Deposited On:29 Jan 2020 17:56
Last Modified:29 Jan 2020 17:56

Origin of downloads

Repository Staff Only: item control page