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. 2024 Jul 22;10(15):e35014. doi: 10.1016/j.heliyon.2024.e35014

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© 2024 The Authors

This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).

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Fig. 5 — (a) Experimental setup of a coaxial nozzle-assisted 3D bioprinting system. (b) 2D-printed alginate structures with built-in microchannels [100]. Adapted reprinted with permission from Ref. [100], License Number: 5,791,941,172,214. Copyright © 2015 Elsevier Ltd. All rights reserved. (c) SEM images and schematic diagram of HA-Bn Synthetic. (d) Live/dead staining [102]. Adapted reprinted with permission from Ref. [102], based on CC BY License. Copyright © 2023 by the authors. Licensee MDPI, Basel, Switzerland.