Photo‐Click Living Strategy for Controlled, Reversible Exchange of Biochemical Ligands

A novel addition-fragmentation-chain transfer capable allyl sulfide functionalized PEG hydrogel is reported to allow controlled, reversible exchange of biochemical ligands. The exchange of biochemical ligands is achieved without permanent consumption of reactive functionalities. Demonstrated is the ability to exchange biochemical ligands multiple times using cytocompatible 720 nm two-photon light. As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset. Technical support issues arising from supporting information (other than missing files) should be addressed to the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.