A transesterfication reaction is used to synthesize tri-thiol-functionalized-ethoxylated polyols that are combined with polyethylene glycol diacrylates to form a biodegradable hydrogel library. Hydrogels display nonswelling equilibration and offer temporal control over material degradation and the release of biomolecules. The demonstrated in vitro biocompatibility makes this a versatile platform that can be used for local drug delivery to volume-constrained anatomical sites.
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O’Shea et al. (2014) studied this question.
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