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Presented here is a cytocompatible covalently adaptable hydrogel uniquely capable of mimicking the complex biophysical properties of native tissue and enabling natural cell functions without matrix degradation. Demonstrated is both the ability to control elastic modulus and stress relaxation time constants by more than an order of magnitude while predicting these values based on fundamental theoretical...
A cell stressing a hydrazone‐crosslinked, step‐growth covalently adaptable poly(ethylene) glycol polymer network is shown in the image. Because of the dynamic nature of the hydrazone bonds, the stressed crosslinks yield to the forces applied by the cytoskeleton, allowing the cell to spread without perturbing the biophysical properties of the cellular microenvironment, as shown by Kristi S. Anseth...
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