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. 2022 Mar 14;8(3):179. doi: 10.3390/gels8030179

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© 2022 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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Rheological properties of a carrageenan-based bio-ink: (a) viscosity of the Alg-Carr-CaSO₄ as a function of shear rate (0.01–1000 s⁻¹); (b) shear modulus of the Alg-Carr-CaSO₄ composite as a function of angular frequency; (c) increasing storage modulus as the carrageenan concentration increases; (d) the variation of viscosity at various hydrogel compositions (reprinted from Kim et al., 2019 [377], with the permission of Elsevier Ltd., published under license. Copyright © 2022 Elsevier Ltd.).