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. 2021 Mar 25;14(4):291. doi: 10.3390/ph14040291

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

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Stimuli-responsive drug release of DOX loaded GelMA, NCST1, NCST2, and NCST3 hydrogels at (a) pH 4.5, (b) pH 6.0, and (c) pH 7.4, respectively. (d) Cell viability of hydrogels with human fibroblast cells.