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International Journal of Bioprinting                        Effect of ionic crosslinking on composite membranes


            The elongation at break of the cross-linked alginate-based   Funding
            composite bioscaffolds showed almost the similar values in
            a range of 5.0 – 5.2%.                             None.

              Introduction of decellularized extracellular matrix derived   Conflict of interest
            from porcine tissue into the materials showed relatively   The authors declare no potential conflicts of interest with
            good mechanical properties and good thermal stability,   respect to the research, authorship, and/or publication of
            which could be employed for biomedical applications using   this article.
            bioprinting technology and designing bioinks containing
            ALG and SFDDS with ALG/SFDDS in the ratio of 90/10   Author contributions
            – 80/20. Furthermore, the cells might be introduced in  Supervision: Ching-Cheng Huang
            the bioinks for tissue engineering applications. Naghieh  Conceptualization: Ching-Cheng Huang
            et al. reported that the mechanical behavior of 3D-printed  Investigation: Jun Xu
            alginate scaffolds and the important printing parameters,  Formal analysis: Jun Xu
            such as printing speed, printing pressure, or material inflow,  Writing – original draft: Run-Miao Yang
            were the essential information in extrusion bioprinting  Writing – review & editing: Ching-Cheng Huang
            for the preparation of 3D-printed macroscaffolds . In
                                                     [29]
            this study, the 3D-printed scaffolds containing micro-  Ethics approval and consent to participate
            bioscaffolds were considered and designed. The supercritical
            fluids-decellularization technique was applied to obtain  Not applicable.
            decellularized  dermal-based  micro-bioscaffolds.  The  Consent for publication
            designed 3D-printed scaffolds containing supercritical
            fluids-decellularized dermal-based micro-bioscaffolds were  Not applicable.
            successfully prepared by extrusion bioprinting and freeze-  Availability of data
            drying. For specific medical applications of 3D-printed
            macro-scaffolds containing the resulting micro-bioscaffolds  The original contributions presented in the study are
            in the future, the printing parameters for the preparation  included in the article, and further inquiries can be directed
            of 3D-printed macro-scaffolds might be useful to obtain  to the corresponding author.
            preferable 3D-printed scaffolds .
                                    [29]
                                                               References
            4. Conclusions                                     1.  Huang CC, Chen YJ, Liu HW, 2021, Characterization
            A new cross-linked alginate-based composite bioscaffold   of composite nano-bioscaffolds based on collagen
            containing supercritical fluids-decellularized dermal-based   and supercritical fluids-assisted decellularized fibrous
            bioscaffolds, which could maintain the microstructure of   extracellular matrix. Polymers, 13: 4326.
            integrity extracellular matrix, was successfully prepared.   https://doi.org/10.3390/polym13244326
            Effect of Ca ion penetration on structural stability and   2.  Tappa K, Jammalamadaka U, 2018, Novel biomaterials used
                      2+
            thermal stability of the resulting cross-linked alginate-  in medical 3d printing techniques. J Funct Biomater, 9: 17.
            based composite bioscaffold was studied with different   https://doi.org/10.3390/jfb9010017
            ionic  crosslinking.  Furthermore,  several  types  of
            microstructures were proposed within the cross-linked   3.  Rhee S, Puetzer JL, Mason BN, et al., 2016, 3D bioprinting
            alginate-based composite bioscaffolds in evidence of DTG   of spatially heterogeneous collagen constructs for cartilage
            and morphology results. The cross-linked alginate-based   tissue engineering. ACS Biomater Sci Eng, 2: 1800–1805.
            composite bioscaffolds exhibited good thermal stability,   https://doi.org/10.1021/acsbiomaterials.6b00288
            and its T dmax  could reach up to 400°C. Furthermore, the   4.  Laronda MM, Rutz AL, Xiao S, et al., 2017, A bioprosthetic
            cross-linked alginate-based composite bioscaffolds showed   ovary created using 3D printed microporous scaffolds
            a relatively good structural stability, indicating that it could   restores ovarian function in sterilized mice. Nat Commun, 8:
            be a potential biomaterial for bioprinting applications.  15261.
                                                                  https://doi.org/10.1038/ncomms15261
            Acknowledgments
                                                               5.  Markstedt K, Mantas A, Tournier I,  et al., 2015, 3D
            Authors would like to acknowledge the Taiwan PARSD    bioprinting human chondrocytes with nanocellulose
            Pharmaceutical Technology Consultants Ltd.  Company   alginate bioink for cartilage tissue engineering applications.
            for technical support.                                Biomacromolecules, 16: 1489–1496.

            Volume 9 Issue 1 (2023)                         44                       http://doi.org/10.18063/ijb.v9i1.625
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