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. 2021 Apr 22;26(9):2453. doi: 10.3390/molecules26092453

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© 2021 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Sonochemical method synthesis different shapes. (a) TEM image of the gold nanodisc [119]. Copyright 2013 Elsevier. (b) Single-particle Fe₃O₄NPs [121]. Copyright 2018 Elsevier. (c) TEM images of gold nanorods fabricated at 1 min [122] Copyright 2014 Elsevier., and (d) TEM image of a Fe₃O₄ nano-sphere [123]. Copyright 2017 American Chemical Society.