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. 2021 May 17;12:462–472. doi: 10.3762/bjnano.12.37

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Copyright © 2021, Wang et al.

This is an Open Access article under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0). Please note that the reuse, redistribution and reproduction in particular requires that the author(s) and source are credited and that individual graphics may be subject to special legal provisions.

The license is subject to the Beilstein Journal of Nanotechnology terms and conditions: (https://www.beilstein-journals.org/bjnano/terms/terms)

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Absorption spectra of AuNRs and of different Au@Pt NRs synthesized in (a) absence and (c) presence of Ag⁺. (b) and (d) are TEM images of Au@Pt-4 in (a) and (c), respectively. Annotation: Au@Pt-1, Au@Pt-2, Au@Pt-3, and Au@Pt-4 represent the Au@Pt NRs prepared with different concentrations of added K₂PtCl₄: 5, 10, 20, and 40 mM, respectively.