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. 2021 May 7;11(5):1238. doi: 10.3390/nano11051238

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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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(a) Hysteresis loops of pure Fe₃O₄ nanoparticles at 5 and 300 K, (b) thermogravimetric analysis of Fe₃O₄@PEG-Ale, and (c) FTIR spectra of Fe₃O₄ (red) and Fe₃O₄@PEG-Ale nanoparticles (black).

(a) Hysteresis loops of pure Fe₃O₄ nanoparticles at 5 and 300 K, (b) thermogravimetric analysis of Fe₃O₄@PEG-Ale, and (c) FTIR spectra of Fe₃O₄ (red) and Fe₃O₄@PEG-Ale nanoparticles (black).