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Lee DK, Song Y, Tran VT, et al. Preparation of concave magnetoplasmonic core-shell supraparticles of gold-coated iron oxide via ion-reducible layer-by-layer method for surface enhanced Raman scattering. J Colloid Interface Sci. 2017;499:54-61doi: 10.1016/j.jcis.2017.03.098.
Lee, D. K., Song, Y., Tran, V. T., Kim, J., Park, E. Y., & Lee, J. (2017). Preparation of concave magnetoplasmonic core-shell supraparticles of gold-coated iron oxide via ion-reducible layer-by-layer method for surface enhanced Raman scattering. Journal of colloid and interface science, 49954-61. https://doi.org/10.1016/j.jcis.2017.03.098
Lee, Dong Kyu, et al. "Preparation of concave magnetoplasmonic core-shell supraparticles of gold-coated iron oxide via ion-reducible layer-by-layer method for surface enhanced Raman scattering." Journal of colloid and interface science vol. 499 (2017): 54-61. doi: https://doi.org/10.1016/j.jcis.2017.03.098
Lee DK, Song Y, Tran VT, Kim J, Park EY, Lee J. Preparation of concave magnetoplasmonic core-shell supraparticles of gold-coated iron oxide via ion-reducible layer-by-layer method for surface enhanced Raman scattering. J Colloid Interface Sci. 2017 Aug 01;499:54-61. doi: 10.1016/j.jcis.2017.03.098. Epub 2017 Mar 23. PMID: 28363104.
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J Colloid Interface Sci. 2017 Aug 01;499:54-61. doi: 10.1016/j.jcis.2017.03.098. Epub 2017 Mar 23.

Preparation of concave magnetoplasmonic core-shell supraparticles of gold-coated iron oxide via ion-reducible layer-by-layer method for surface enhanced Raman scattering.

Journal of colloid and interface science

Dong Kyu Lee, Younseong Song, Van Tan Tran, Jeonghyo Kim, Enoch Y Park, Jaebeom Lee

Affiliations

  1. Department of Cogno-Mechatronics Engineering, Pusan National University, Busan 609-735, Republic of Korea.
  2. Graduate School of Science and Technology, Shizuoka University, 836 Ohya Suruga-ku, Shizuoka 422-8529, Japan.
  3. Department of Cogno-Mechatronics Engineering, Pusan National University, Busan 609-735, Republic of Korea. Electronic address: [email protected].

PMID: 28363104 DOI: 10.1016/j.jcis.2017.03.098

Abstract

Preparation of suprastructure assemblies with unique colloidal and optical properties remains challenging. Non-uniform covering of magnetic nanoparticles (NPs) with an external inert Au shell has been attempted to protect the magnetic core against oxidation as well as to produce multifunctional supraparticles (SPs) possessing respective optical and magnetic properties. In this study, a concave Au NP coating was deposited on magnetic nanoparticles (MNPs) with precise control of the shell thickness and roughness through a layer-by-layer (LbL) assisted ionic reduction method termed ion-reducible LbL (IR-LbL) method. Surface enhanced Raman spectra were obtained using graphene quantum dots (GQDs) on the magnetically aligned structure of the prepared core-shell SPs. It is probable that this synthesis method and the generated SPs are essential for characterizing the merge of electronics and magnetism in the nano-regime and may be applicable for further electronics, magnetic storage, and biomedical applications.

Copyright © 2017 Elsevier Inc. All rights reserved.

Keywords: Core-shell; Fe(3)O(4)@Au nanoparticles; Layer-by-layer; Magnetoplasmonic; Supraparticles; Suprastructure

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