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Hydrogels are widely studied as tissue engineering scaffolds, but the biological tissues they are designed to mimic are often complex tissues with non-uniform chemical and mechanical profiles. This work reports a new strategy to create hydrogels composed of a continuous sheet of a single nonfouling but functionalizable material with mechanical and/or chemical functionality gradients. By using different...
We have introduced a dimethacrylate carboxybetaine-based crosslinker that has excellent compatibility with zwitterionic hydrogel systems. Poly(carboxybetaine methacrylate) (pCBMA) hydrogels prepared with the new CBMA crosslinker (CBMAX) result in considerably improved solubility, homogeneity, and mechanical properties (up to 8 MPa compressive modulus) over those prepared with the commercially available...
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