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Updated: Mar 24, 2026
Using Magnetometry to Monitor Cellular Incorporation and Subsequent Biodegradation of Chemically Synthetized Iron Oxide Nanoparticles
Published on: February 27, 2021
Synthesis of Iron(II,III) Oxide-Titanium Core-Shell Particles via Magnetron Sputtering for Magnetoactive Elastomers
Cristian Padilha Fontoura1, Amanda Poletto Santi2, Wellington Vieira de Souza1
1Área do Conhecimento de Ciências Exatas e Engenharias, Graduate Program in Materials Science (PPGMAT), Universidade de Caxias do Sul, Rua Francisco Getúlio Vargas, 1130, Caxias do Sul, RS 95070-560, Brazil.
Abstract:
Magnetoactive elastomers (MAEs) and magnetorheological elastomers (MREs) are widely explored for vibration damping, soft robotics, and biomimetic applications. Conventional ferromagnetic fillers such as iron (Fe) and its ferrimagnetic oxides (Fe3O4, Fe2O3) provide effective magnetic actuation but suffer from low corrosion resistance and limited biocompatibility. While poly-(dimethylsiloxane) (PDMS) offers excellent biocompatibility, its integration with bare Fe/Fe3O4 particles remains challenging. In this work, we present a surface-engineering strategy to overcome these limitations by synthesizing Fe3O4@Ti core-shell particles via magnetron sputtering. The titanium shell improves chemical stability and surface compatibility, enabling better dispersion and performance within the PDMS matrix for magnetoactive applications.
