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Affinity peptides protect TGFβ1 during photoencapsulation. Soluble affinity peptides, added to a monomer solution of 20 mM PEG (Mn = 2000 Da) monoacrylate and photoinitiator, increase the amount of recovered TGFβ1 after UV exposure. * indicates p < 0.05 (n = 4) for each peptide concentration, relative to solution containing no peptide. Error bars represent standard error (n = 4).
