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Mar. Drugs 2018, 16(12), 484;

Marine Biomaterial-Based Bioinks for Generating 3D Printed Tissue Constructs

Department of Stem Cell and Regenerative Biotechnology, KU Convergence Science and Technology Institute, Konkuk University, Seoul 05029, Korea
Department of Bioindustrial Technologies, College of Animal Bioscience and Technology, Konkuk University, Seoul 05029, Korea
Department of Mechatronics, College of Engineering, Incheon National University, Incheon 22012, Korea
Division of Engineering in Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, MA 02139, USA
Authors to whom correspondence should be addressed.
Received: 4 November 2018 / Revised: 23 November 2018 / Accepted: 24 November 2018 / Published: 4 December 2018
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Biologically active materials from marine sources have been receiving increasing attention as they are free from the transmissible diseases and religious restrictions associated with the use of mammalian resources. Among various other biomaterials from marine sources, alginate and fish gelatin (f-gelatin), with their inherent bioactivity and physicochemical tunability, have been studied extensively and applied in various biomedical fields such as regenerative medicine, tissue engineering, and pharmaceutical products. In this study, by using alginate and f-gelatin’s chemical derivatives, we developed a marine-based interpenetrating polymer network (IPN) hydrogel consisting of alginate and f-gelatin methacryloyl (f-GelMA) networks via physical and chemical crosslinking methods, respectively. We then evaluated their physical properties (mechanical strength, swelling degree, and degradation rate) and cell behavior in hydrogels. Our results showed that the alginate/f-GelMA hydrogel displayed unique physical properties compared to when alginate and f-GelMA were used separately. These properties included high mechanical strength, low swelling and degradation rate, and an increase in cell adhesive ability. Moreover, for the first time, we introduced and optimized the application of alginate/f-GelMA hydrogel in a three-dimensional (3D) bioprinting system with high cell viability, which breaks the restriction of their utilization in tissue engineering applications and suggests that alginate/f-GelMA can be utilized as a novel bioink to broaden the uses of marine products in biomedical fields. View Full-Text
Keywords: fish gelatin; alginate; hydrogel; 3D bioprinting; tissue engineering; bioink; marine products fish gelatin; alginate; hydrogel; 3D bioprinting; tissue engineering; bioink; marine products

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Zhang, X.; Kim, G.J.; Kang, M.G.; Lee, J.K.; Seo, J.W.; Do, J.T.; Hong, K.; Cha, J.M.; Shin, S.R.; Bae, H. Marine Biomaterial-Based Bioinks for Generating 3D Printed Tissue Constructs. Mar. Drugs 2018, 16, 484.

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