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Cobalt iron oxide (CoFe2O4) reinforced polyvinyl alcohol (PVA) based magnetoactive polymer nanocomposites for remote actuation
Materials Science and Engineering: B, Volume: 311, Start page: 117838
Swansea University Author: Mokarram Hossain
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© 2024 The Authors. This is an open access article under the CC BY license.
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DOI (Published version): 10.1016/j.mseb.2024.117838
Abstract
Magnetoactive polymer composites (MAPCs) are materials composed of a polymer matrix embedded with magnetic particles that mechanically respond to external magnetic fields. MAPCs can be programmed to be adjusted remotely without physical interventions using a magnetic field to generate the desired re...
Published in: | Materials Science and Engineering: B |
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ISSN: | 0921-5107 |
Published: |
Elsevier BV
2025
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Online Access: |
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URI: | https://cronfa.swan.ac.uk/Record/cronfa68231 |
Abstract: |
Magnetoactive polymer composites (MAPCs) are materials composed of a polymer matrix embedded with magnetic particles that mechanically respond to external magnetic fields. MAPCs can be programmed to be adjusted remotely without physical interventions using a magnetic field to generate the desired response; therefore, MAPCs are being actively explored for their applications in remote sensing, soft robotics, electronics, and biomedical areas. In this work, novel MAPCs were synthesised comprising polyvinyl alcohol (PVA) as the matrix and cobalt iron oxide (CoFe₂O₄) nanoparticles as the magnetic component with varying concentrations (i.e., 1.25%, 2.5%, and 5%). MAPCs were synthesised using the solution casting technique, and field emission scanning electron microscopy (FE-SEM) and x-ray diffraction (XRD) results revealed the successful integration of CoFe₂O₄ nanoparticles within the polymer matrix. The synthesised MAPC films were also characterised for their chemical, thermal, magnetic, and biological properties. The incorporation of CoFe₂O₄ nanoparticles resulted in an improved magnetic and biological response, with improvements in these properties with increasing CoFe₂O₄ content. However, PVA/5% CoFe₂O₄ revealed toxicity and requires further investigation of using these materials with higher CoFe₂O₄ concentrations. The magnetic response and biological properties of the PVA/CoFe₂O₄ MAPCs revealed their potential uses for remote actuation and sensing in the biomedical sector. |
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Keywords: |
Magnetoactive polymer composites; Smart materials; Magnetic properties; Biocompatibility; Remote actuation |
College: |
Faculty of Science and Engineering |
Funders: |
The authors would like to acknowledge Qatar National Research Fund (QNRF) for its support through the grant (NPRP13S-0126-200172) and HBKU Innovation Center for its support through Industrial Innovation Fund (HBKU-OIIR-IIF-07-01) that made this work possible partially. Open Access funding provided by the Qatar National Library (QNL). M. H. acknowledges the support of the Royal Society (UK) through the International Exchange Grant (IEC/NFSC/211316). |
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