Cobalt iron oxide (CoFe2O4) reinforced polyvinyl alcohol (PVA) based magnetoactive polymer nanocomposites for remote actuation

IF 3.9 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Science and Engineering B-advanced Functional Solid-state Materials Pub Date : 2024-11-16 DOI:10.1016/j.mseb.2024.117838

Ans Al Rashid , Noor A. Al-Maslamani , Anas Abutaha , Mokarram Hossain , Muammer Koç

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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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基于氧化钴（CoFe2O4）增强聚乙烯醇（PVA）的磁活性聚合物纳米复合材料，用于远程致动

磁活性聚合物复合材料（MAPC）是一种由聚合物基体和磁性颗粒组成的材料，可对外部磁场做出机械响应。MAPC 可通过编程进行远程调整，无需物理干预，利用磁场产生所需的响应；因此，MAPC 在遥感、软机器人、电子和生物医学领域的应用正受到积极探索。在这项工作中，合成了新型 MAPCs，它以聚乙烯醇（PVA）为基质，以不同浓度（即 1.25%、2.5% 和 5%）的氧化钴（CoFe2O4）纳米粒子为磁性成分。采用溶液浇铸技术合成了 MAPC，场发射扫描电子显微镜（FE-SEM）和 X 射线衍射（XRD）结果表明，CoFe2O4 纳米粒子成功地融入了聚合物基体。合成的 MAPC 薄膜还具有化学、热、磁和生物特性。CoFe2O4 纳米粒子的加入改善了磁性和生物反应，随着 CoFe2O4 含量的增加，这些特性也得到了改善。不过，PVA/5% CoFe2O4 显示出了毒性，因此需要进一步研究如何使用这些含有更高浓度 CoFe2O4 的材料。PVA/CoFe2O4 MAPCs 的磁响应和生物特性揭示了它们在生物医学领域远程驱动和传感方面的潜在用途。

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来源期刊

Materials Science and Engineering B-advanced Functional Solid-state Materials 工程技术-材料科学：综合

CiteScore

5.60

自引率

2.80%

发文量

481

审稿时长

3.5 months

期刊介绍： The journal provides an international medium for the publication of theoretical and experimental studies and reviews related to the electronic, electrochemical, ionic, magnetic, optical, and biosensing properties of solid state materials in bulk, thin film and particulate forms. Papers dealing with synthesis, processing, characterization, structure, physical properties and computational aspects of nano-crystalline, crystalline, amorphous and glassy forms of ceramics, semiconductors, layered insertion compounds, low-dimensional compounds and systems, fast-ion conductors, polymers and dielectrics are viewed as suitable for publication. Articles focused on nano-structured aspects of these advanced solid-state materials will also be considered suitable.