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- W2158778815 abstract "The mass transport of solutes through hydrogels is an important design consideration in materials used for tissue engineering, drug delivery, and protein arrays used to quantify protein concentration and activity. We investigated the use of poly(ethylene glycol) (PEG) as a porogen to enhance diffusion of macromolecules into the interior of polyacrylamide and PEG hydrogel posts photopatterned within microfluidic channels. The diffusion of GST-GFP and dextran-FITC into hydrogels was monitored and effective diffusion coefficients were determined by fitting to the Fickian diffusion equations. PEG-diacrylate (M(r) 700) with porogen formed a macroporous structure and permitted significant penetration of 250 kDa dextran. Proteins copolymerized in these macroporous hydrogels retained activity and were more accessible to antibody binding than proteins copolymerized in nonporous gels. These results suggest that hydrogel macroporosity can be tuned to regulate macromolecular transport in applications such as tissue engineering and protein arrays." @default.
- W2158778815 created "2016-06-24" @default.
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- W2158778815 date "2010-10-28" @default.
- W2158778815 modified "2023-09-30" @default.
- W2158778815 title "Development of Macroporous Poly(ethylene glycol) Hydrogel Arrays within Microfluidic Channels" @default.
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- W2158778815 doi "https://doi.org/10.1021/bm100792y" @default.
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