Kwizera Elyahb Allie, Chaffin Elise, Wang Yongmei, Huang Xiaohua
Department of Chemistry, The University of Memphis, Memphis, TN 38152.
RSC Adv. 2017 Mar 19;7(28):17137-17153. doi: 10.1039/C7RA01224A. Epub 2017 Mar 20.
Due to their high integrity, facile surface chemistry, excellent stability, and dual properties from the core and shell materials, magnetic-plasmonic core-shell nanoparticles are of great interest across a number of science, engineering and biomedical disciplines. They are promising for applications in a broad range of areas including catalysis, energy conversion, biological separation, medical imaging, disease detection and treatment. The technological applications have driven the need for high quality nanoparticles with well controlled magnetic and optical properties. Tremendous progress has been made during past few decades in synthesizing and characterizing magnetic-plasmonic core-shell nanoparticles, mainly iron oxide-gold core-shell nanoparticles. This review introduces various approaches for the synthesis of spherical and anisotropic magnetic-plasmonic core-shell nanoparticles focusing on iron oxide-gold core-shell nanoparticles. Growth mechanisms are discussed to provide understanding of the key factors controlling shape-controlled synthesis. Magnetic and optical properties are summarized from both computational and experimental studies.
由于其高完整性、简便的表面化学性质、出色的稳定性以及核壳材料的双重特性，磁性等离子体核壳纳米粒子在许多科学、工程和生物医学领域都备受关注。它们在包括催化、能量转换、生物分离、医学成像、疾病检测和治疗等广泛领域具有应用前景。这些技术应用推动了对具有良好控制的磁性和光学性质的高质量纳米粒子的需求。在过去几十年中，在合成和表征磁性等离子体核壳纳米粒子，主要是氧化铁-金核壳纳米粒子方面取得了巨大进展。本文综述了合成球形和各向异性磁性等离子体核壳纳米粒子的各种方法，重点介绍了氧化铁-金核壳纳米粒子。讨论了生长机制，以帮助理解控制形状控制合成的关键因素。从计算和实验研究两方面总结了磁性和光学性质。
