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. 2020 Dec 11;25(24):5858. doi: 10.3390/molecules25245858

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© 2020 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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Examples of advanced nanocomposite hydrogels showing reinforced, smart or anisotropic characteristics. (A) Injectable hyaluronic acid (HA) hydrogels mechanically reinforced with cellulose nanocrystals (CNC). Reproduced with permission from [149], copyright 2015, American Chemical Society; (B) gelatin-based hydrogels with high electrical conductivity due to the incorporation of gold nanorods (GNRs). Adapted with permission from [166], copyright 2016, Elsevier; (C) anisotropic gelatin hydrogels produced by the magnetic alignment of magnetic-responsive particles (peg-mCNC). Reproduced with permission from [176], copyright 2019, American Chemical Society.