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- W2211642066 abstract "Various polymerization mechanisms have been developed to prepare peptide‐immobilized poly(ethylene glycol) (PEG) hydrogels, a class of biomaterials suitable for studying cell biology in vitro. Here, a visible light mediated thiol‐acrylate photopolymerization scheme is reported to synthesize dually degradable PEG‐peptide hydrogels with controllable crosslinking and degradability. The influence of immobilized monothiol pendant peptide is systematically evaluated on the crosslinking of these hydrogels. Further, methods are proposed to modulate hydrogel crosslinking, including adjusting concentration of comonomer or altering the design of multifunctional peptide crosslinker. Due to the formation of thioether ester bonds, these hydrogels are hydrolytically degradable. If the dithiol peptide linkers used are susceptible to protease cleavage, these thiol‐acrylate hydrogels can be designed to undergo partial proteolysis. The differences between linear and multiarm PEG‐acrylate (i.e., PEGDA vs PEG4A) are also evaluated. Finally, the use of the mixed‐mode thiol‐acrylate PEG4A‐peptide hydrogels is explored for in situ encapsulation of hepatocellular carcinoma cells (Huh7). The effects of matrix stiffness and integrin binding motif (e.g., RGDS) on Huh7 cell growth and HIPPO pathway activation are studied using PEG4A‐peptide hydrogels. This visible light polymerized thiol‐acrylate hydrogel system represents an alternative to existing light‐cured hydrogel platforms and shall be useful in many biomedical applications." @default.
- W2211642066 created "2016-06-24" @default.
- W2211642066 creator A5006602156 @default.
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- W2211642066 date "2015-12-28" @default.
- W2211642066 modified "2023-10-05" @default.
- W2211642066 title "Designing Visible Light-Cured Thiol-Acrylate Hydrogels for Studying the HIPPO Pathway Activation in Hepatocellular Carcinoma Cells" @default.
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- W2211642066 doi "https://doi.org/10.1002/mabi.201500361" @default.
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