A fast and activatable cross-linking strategy for hydrogel formation.

Jonker, Anika M; Borrmann, Annika; van Eck, Ernst R H; van Delft, Floris L; Löwik, Dennis W P M; van Hest, Jan C M · Adv Mater · 2015

basic_science · Level V

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Abstract

Strain-promoted oxidation-controlled cyclo-octyne-1,2-quinone cycloaddition (SPOCQ) is a fast and activatable cross-linking strategy for hydrogel formation. Gelation is induced by oxidation, which is performed both chemically using sodium periodate and enzymatically using mushroom tyrosinase. Due to the fast reaction kinetics, SPOCQ-formed hydrogels can be functionalized in one-pot with an azido-containing moiety using SPAAC cross-linking.