Impact of Gd, Pr, Yb, and Nd doping on the magnetic properties of Mg-ferrite nanoparticles

IF 4.5 3区医学 Q2 ENGINEERING, BIOMEDICAL

Journal of Materials Science: Materials in Medicine Pub Date : 2025-01-30 DOI:10.1007/s10856-025-06859-6

H. Aglan, I. A. Ali, B. M. Ali, S. A. Kandil

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引用次数: 0

Abstract

This study aimed to synthesize MgFe_1.9Ln_0.1O₄ (where, Ln = Yb, Pr, Gd, and Nd) ferrite nanoparticles via the sol-gel process and investigate their structural, morphological, and magnetic properties for potential hyperthermia applications. X-ray diffraction analysis (XRD) confirmed the cubic spinel structure for all samples. Transmission electron microscopy (TEM) images revealed nanometer-scale dimensions and nearly spherical morphology. Vibrating sample magnetometer measurements (VSM) indicated superparamagnetic behavior, with decreasing saturation magnetization (Ms) observed as Ln³⁺ content decreased. Specific absorption rate (SAR) analysis at 198 kHz demonstrated the influence of Ln³⁺ substitution on magnetic properties. Compared to existing studies, Ln³⁺ substituted (Yb, Pr, Gd, and Nd) nanoparticles demonstrate tunable magnetic properties and enhanced SAR performance, offering a more efficient design for hyperthermia treatment of solid tumors.

Graphical Abstract

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Gd, Pr， Yb和Nd掺杂对mg -铁氧体纳米颗粒磁性能的影响。

本研究旨在通过溶胶-凝胶法合成MgFe1.9Ln0.1O4（其中，Ln = Yb, Pr, Gd, Nd）铁氧体纳米颗粒，并研究其结构，形态和磁性能，用于潜在的热疗应用。x射线衍射分析（XRD）证实了所有样品的立方尖晶石结构。透射电子显微镜（TEM）图像显示纳米级尺寸和接近球形的形貌。振动样品磁强计（VSM）显示出超顺磁性，饱和磁化强度（Ms）随着Ln3+含量的降低而降低。198 kHz时的比吸收率（SAR）分析证实了Ln3+取代对磁性能的影响。与现有研究相比，Ln3+取代（Yb, Pr， Gd和Nd）纳米颗粒具有可调的磁性和增强的SAR性能，为实体肿瘤的热疗提供了更有效的设计。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Materials Science: Materials in Medicine 工程技术-材料科学：生物材料

CiteScore

8.00

自引率

0.00%

发文量

审稿时长

3.5 months

期刊介绍： The Journal of Materials Science: Materials in Medicine publishes refereed papers providing significant progress in the application of biomaterials and tissue engineering constructs as medical or dental implants, prostheses and devices. Coverage spans a wide range of topics from basic science to clinical applications, around the theme of materials in medicine and dentistry. The central element is the development of synthetic and natural materials used in orthopaedic, maxillofacial, cardiovascular, neurological, ophthalmic and dental applications. Special biomedical topics include biomaterial synthesis and characterisation, biocompatibility studies, nanomedicine, tissue engineering constructs and cell substrates, regenerative medicine, computer modelling and other advanced experimental methodologies.