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    Alginate/cartilage extracellular matrix-based injectable interpenetrating polymer network hydrogel for cartilage tissue engineering

    , Article Journal of Biomaterials Applications ; Volume 36, Issue 5 , 2021 , Pages 803-817 ; 08853282 (ISSN) Shojarazavi, N ; Mashayekhan, S ; Pazooki, H ; Mohsenifard, S ; Baniasadi, H ; Sharif University of Technology
    SAGE Publications Ltd  2021
    In the present study, alginate/cartilage extracellular matrix (ECM)-based injectable hydrogel was developed incorporated with silk fibroin nanofibers (SFN) for cartilage tissue engineering. The in situ forming hydrogels were composed of different ionic crosslinked alginate concentrations with 1% w/v enzymatically crosslinked phenolized cartilage ECM, resulting in an interpenetrating polymer network (IPN). The response surface methodology (RSM) approach was applied to optimize IPN hydrogel's mechanical properties by varying alginate and SFN concentrations. The results demonstrated that upon increasing the alginate concentration, the compression modulus improved. The SFN concentration was...