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. 2019 Nov 12;11(11):601. doi: 10.3390/pharmaceutics11110601

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© 2019 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 (http://creativecommons.org/licenses/by/4.0/).

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Illustrations of the main compounds used for the surface modification of SPIONs: (1) PEG (poly(ethylene glycol)), (2) PVA (poly(vinyl alcohol), (3) PVP (poly(vinyl pyrrolidone), (4) chitosan, and (5) dextran (Reproduced from Dulińska-Litewka, J. et al., Materials; published by MDPI, 2019. from ref [42]).