Synthesis of Iron(II,III) Oxide–Titanium Core–Shell Particles via Magnetron Sputtering for Magnetoactive Elastomers

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 (Fe<sub>3</sub>O<sub>4</sub>, Fe<sub>2</sub>O<sub>3</sub>) 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/Fe<sub>3</sub>O<sub>4</sub> particles remains challenging. In this work, we present a surface-engineering strategy to overcome these limitations by synthesizing Fe<sub>3</sub>O<sub>4</sub>@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.

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Publication Details

Journal
ACS Omega
Published
2026-03-03
DOI
https://doi.org/10.1021/acsomega.5c10485
Primary Topic
Nanoparticle-Based Drug Delivery
Type
article
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article

Synthesis of Iron(II,III) Oxide–Titanium Core–Shell Particles via Magnetron Sputtering for Magnetoactive Elastomers

Wellington Vieira de Souza, Cristian Padilha Fontoura, Amanda Poletto Santi, Mariana Roesch-Ely et al.
ACS Omega
Nanoparticle-Based Drug Delivery
article

Synthesis of Iron(II,III) Oxide–Titanium Core–Shell Particles via Magnetron Sputtering for Magnetoactive Elastomers

Wellington Vieira de Souza, Cristian Padilha Fontoura, Amanda Poletto Santi, Mariana Roesch-Ely, Cesar Aguzzoli
article en

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 (Fe<sub>3</sub>O<sub>4</sub>, Fe<sub>2</sub>O<sub>3</sub>) 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/Fe<sub>3</sub>O<sub>4</sub> particles remains challenging. In this work, we present a surface-engineering strategy to overcome these limitations by synthesizing Fe<sub>3</sub>O<sub>4</sub>@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.

ACS OmegaVol. 11(10)
Universidade de Caxias do Sul (BR)
Openalex Percentile: Top 38%
Nanoparticle-Based Drug Delivery
DOIOpen Access PDFOpenAlex
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Synthesis of Iron(II,III) Oxide–Titanium Core–Shell Particles via Magnetron Sputtering for Magnetoactive Elastomers — Wellington Vieira de Souza, Cristian Padilha Fontoura, et al. · ACS Omega (2026) | TGRS Research Map | TGRS