Photopolymerized hyaluronic acid-based hydrogels and interpenetrating networks

Yong Doo Park, Nicola Tirelli, Jeffrey A. Hubbell

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Hyaluronic acid (HA) was derivatized with methacrylic esters used for the preparation of hydrogels via photopolymerization. Poly(ethylene glycol) diacrylate (PEG-DA) with a molecular weight of 570 was also used as a comacromonomer to improve elastic modulus and swelling behavior. The hydrogels were readily degraded by hyaluronidase and their mechanical properties could be modulated by HA molecular weight and concentration of PEG-DA. The incorporation of RGD peptides allowed modulation of the HA properties from cell non-adhesive to adhesive. Human dermal fibroblasts were cultured on the RGD, RDG, and non-functionalized HA hydrogels for up to 7d, showing adhesion and proliferation only with incorporated RGD. © 2002 Elsevier Science Ltd. All rights reserved.
    Original languageEnglish
    Pages (from-to)893-900
    Number of pages7
    JournalBiomaterials
    Volume24
    Issue number6
    DOIs
    Publication statusPublished - Mar 2003

    Keywords

    • Cell adhesion
    • Hyaluronic acid
    • Hydrogels
    • Photopolymerization
    • RGD

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