Providing insight into exchange coupling within nanomagnetism: mechanism, micromagnetic simulation, synthesis and biomedical application

IF 6.8 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Science China Materials Pub Date : 2024-08-22 DOI:10.1007/s40843-024-2978-8

Yuting Tang (, ), Feng Feng (, ), Guanhua Xu (, ), Shijie Qin (, ), Xiaoping Ouyang (, ), Li Yao (, ), Xiuyu Wang (, )

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Abstract

Exchange coupling within nanomagnetism is a rapidly evolving field with significant implications for that plays a crucial role in the development of magnetic nanomaterials. Manipulating exchange coupling interaction enables the magnetic systems to overcome limitations associated with size-dependent magnetic behavior within nano scale, thereby improving their magnetic properties and providing for superior performance in biomedical applications compared with single-phase magnetic materials. Understanding the underlying mechanism of exchange coupling and its impact on macroscopic magnetic properties is crucial for the design and application of such magnetic materials. This review provides an overview of recent advances in interfacial exchange coupling among different magnetic modalities—ferromagnetism, ferrimagnetism, and antiferromagnetism—based on core-shell magnetic nanoparticles (MNPs). Additionally, this review discusses micromagnetic simulations to gain insights into the relationship between the microscopic magnetic structure (size, shape, composition, and exchange coupling) and the resulting macroscopic properties. The controlled synthesis of MNPs is summarized, including one-step method and two-step method. The precise manipulation of interfacial characteristics is of great importance, albeit challenging, as it allows for the fine-tuning of magnetic properties tailored for specific applications. The review also explores potential applications of core-shell MNPs in magnetic resonance imaging, hyperthermia therapy, targeted drug delivery, and advanced neuromodulation.

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深入了解纳米磁性中的交换耦合：机制、微磁模拟、合成和生物医学应用

纳米磁学中的交换耦合是一个快速发展的领域，对磁性纳米材料的发展具有重要影响，并发挥着至关重要的作用。操纵交换耦合相互作用可使磁性系统克服纳米尺度内与尺寸相关的磁性行为限制，从而改善其磁性能，并在生物医学应用中提供优于单相磁性材料的性能。了解交换耦合的基本机制及其对宏观磁性能的影响对于此类磁性材料的设计和应用至关重要。本综述概述了基于核壳磁性纳米粒子（MNPs）的不同磁性模式（铁磁性、铁磁性和反铁磁性）之间的界面交换耦合的最新进展。此外，本综述还讨论了微磁模拟，以深入了解微观磁结构（尺寸、形状、成分和交换耦合）与由此产生的宏观特性之间的关系。综述了 MNPs 的可控合成，包括一步法和两步法。尽管具有挑战性，但对界面特性的精确控制非常重要，因为它可以针对特定应用对磁性能进行微调。综述还探讨了核壳 MNPs 在磁共振成像、热疗、靶向给药和高级神经调控中的潜在应用。

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

Science China Materials Materials Science-General Materials Science

CiteScore

11.40

自引率

7.40%

发文量

949

期刊介绍： Science China Materials (SCM) is a globally peer-reviewed journal that covers all facets of materials science. It is supervised by the Chinese Academy of Sciences and co-sponsored by the Chinese Academy of Sciences and the National Natural Science Foundation of China. The journal is jointly published monthly in both printed and electronic forms by Science China Press and Springer. The aim of SCM is to encourage communication of high-quality, innovative research results at the cutting-edge interface of materials science with chemistry, physics, biology, and engineering. It focuses on breakthroughs from around the world and aims to become a world-leading academic journal for materials science.